JP5796889B2 - container - Google Patents

Description

  The present invention relates to a container that can be slid to a position directly above a lower container when the containers are stacked, placed on the upper surface of the lower container in an inclined posture. In the following description, an operation of sliding and stacking containers is referred to as a “slide stacking operation”.

  As shown in FIG. 22, conventionally, as a container of this type, a flange 5 is protruded laterally from the opening edge of the upper end opening, and is supported at both ends in the lateral direction on the outer surfaces of the side walls 1 and 2. One in which the protrusions 3 are formed one by one is known. In this container, the slide projection 7 shown in FIG. 23 is formed on the lower surface of the stacking support projection 3 disposed on the pair of side walls 1 and 1 facing each other, and the upper surface of the flange 5 is included. A pair of lateral displacement restricting protrusions 4 and 4 are formed along the inner edge of the upper surface of the pair of side walls 1 and 1. When the containers are stacked, as shown in FIG. 22, the upper container is inclined, and the pair of slide protrusions 7 and 7 of the container are connected to the pair of side walls 1 and 1 of the lower container. To the position where the upper container is directly above the lower container in a state where the pair of lateral displacement restricting protrusions 4, 4 is disposed between the pair of slide protrusions 7, 7. Can slide.

  In the above-described container, when the upper and lower containers are stacked with the direction different by 180 degrees, the upper container support protrusions 3 group are formed in the protrusion receiving grooves 6 formed on the inner surface of the lower container. When the nesting state is received and the upper and lower containers are stacked in the same direction, the stacking support protrusions 3 of the upper container are stacked on the upper surfaces of the side walls 1 and 2.

Japanese Patent No. 3998693 (FIGS. 1 and 6)

  By the way, when the side wall of the container is deformed to the outside by the pressure from the load, it is most greatly deformed particularly in the central portion in the lateral direction of each side wall. For this reason, in the above-described conventional container, when the pair of slide protrusions 7 and 7 are placed in an inclined posture on the outer side of the pair of lateral displacement regulating protrusions 4 and 4 in the other container, the lower side There is a situation in which only one slide protrusion 7 abuts on the upper surface of the side wall 1 and the other slide protrusion 7 is disengaged from the upper surface of the side wall 1 by a slight lateral deviation of the upper container with respect to this container. Can happen. In such a case, in order to correct the lateral displacement of the upper and lower containers, in the conventional container, unless the other slide projection 7 side of the upper container is raised to the side, the slide projection 7 is restricted from lateral displacement. Since it is impossible to get over the protrusion 4, it takes time to arrange the pair of slide protrusions 7, 7 of the upper container outside the pair of lateral displacement restricting protrusions 4, 4 of the lower container. Sometimes this happened.

  The present invention has been made in view of the above circumstances, and when performing a slide stacking operation of a container, the pair of slide protrusions of the upper container are arranged outside the pair of lateral displacement regulating protrusions of the lower container. The purpose is to provide a container that can be placed smoothly.

In order to achieve the above object, a container according to the invention of claim 1 has a box-shaped structure with an open top surface, and includes a plurality of stacking support protrusions on each outer surface of a pair of side walls facing each other. A container having a slide protrusion projectingly formed on the lower surface of the stacked support projecting protrusion and a pair of lateral displacement restricting protrusions projecting on the inner edge of the upper surface of the pair of side walls, When stacking, the upper container is inclined and the pair of slide protrusions of the pair of side walls are in contact with the upper surfaces of the pair of side walls of the lower container and between the pair of slide protrusions. In a container in which the upper container is slidably movable to a position directly above the lower container with a pair of lateral displacement regulating ridges arranged on the both ends of the longitudinal displacement regulating ridges A pair of high lengths extending at a certain height A pair of communication between the control portion, a low-length control portion extending at a certain height lower than the high-height restriction portion in the middle portion in the longitudinal direction, and the pair of high-height control portions and the low-height control portion The contact slope regulating part of the lateral displacement regulating ridge is formed to form a corner curved surface that communicates between the side surface opposite to the inner side surface of the side wall and the upper surface of the lateral displacement regulating ridge, and is regulated with a low height The radius of curvature of the corner curved surface of the height regulation part is made smaller than the radius of curvature of the corner curved surface of the part, and the radius of curvature of the corner curved surface of the contact inclination regulation part is changed from the end on the low length regulation part side to the height regulation part. It is characterized in that it is gradually reduced toward the end on the side .

A container according to a second aspect of the present invention has a box-shaped structure with an open top surface, and includes a plurality of stacked support protrusions on each outer surface of a pair of side walls facing each other, and a bottom surface of the stacked support protrusions. And a pair of lateral displacement restricting protrusions protruding from the inner edge of the upper surface of the pair of side walls, and the upper container is inclined when the containers are stacked. In a posture, a pair of slide protrusions of a pair of side walls abuts against the upper surfaces of the pair of side walls of the lower container, and a pair of lateral displacement restricting protrusions between the pair of slide protrusions. In a container that can slide and move the upper container to a position directly above the lower container, the lateral displacement restricting ridge extends at a certain height at both ends in the longitudinal direction. A pair of high-height regulation parts and a middle part in the longitudinal direction A low height restriction portion extending at a constant height lower than the control portion, and a pair of contact inclination restriction portions connected between the pair of high height restriction portions and the low length restriction portion, A corner curved surface that connects between the side of the regulating ridge opposite to the inner side of the side wall and the top surface of the lateral displacement regulating ridge is formed, and the length is regulated lower than the curvature radius of the corner curved surface of the high length regulating portion. When the radius of curvature of the corner curved surface of the part is reduced and the radius of curvature of the corner curved surface of the contact inclination regulating part is gradually reduced from the end on the high length regulating part side toward the end on the low length regulating part side It has the characteristics.

According to a third aspect of the present invention, in the container according to the first or second aspect, the upper surface of the pair of side walls is opposed to the lateral displacement regulating ridge across a protruding portion contact area where the sliding protruding portion can contact. A guide step portion is formed, and a vertical guide surface that stands vertically from the protrusion contact area on the upper surface of the side wall is provided at a position facing the height regulation portion of the guide step portion, and the height of the guide step portion is low. It is characterized in that a vertically inclined guide surface having a shape in which an imaginary surface obtained by extending a vertical guide surface is tilted outward with its lower end as a center is provided at a position facing the restriction portion .

According to a fourth aspect of the present invention, there is provided a container having a box-like structure with an open top surface, comprising a plurality of stacked support protrusions on each outer surface of a pair of side walls facing each other, and a bottom surface of the stacked support protrusions. And a pair of lateral displacement restricting protrusions protruding from the inner edge of the upper surface of the pair of side walls, and the upper container is inclined when the containers are stacked. In a posture, a pair of slide protrusions of a pair of side walls abuts against the upper surfaces of the pair of side walls of the lower container, and a pair of lateral displacement restricting protrusions between the pair of slide protrusions. In a container that can slide and move the upper container to a position directly above the lower container, the lateral displacement restricting ridge extends at a certain height at both ends in the longitudinal direction. A pair of high-height regulation parts and a middle part in the longitudinal direction A pair of low-height restricting portions extending at a constant height lower than the control portion, and a pair of connecting inclination restricting portions communicating between the pair of high-height restricting portions and the low-height restricting portion. A guide step portion is formed on the upper surface of the side wall of the guide step so as to oppose the lateral displacement restricting ridge across a protrusion contact region on which the slide protrusion can abut. In addition, a vertical guide surface standing vertically from the protrusion contact region on the upper surface of the side wall is provided, and an imaginary surface extending the vertical guide surface is provided at a position facing the low-height regulation portion of the guide stepped portion. It is characterized in that a longitudinally inclined guide surface having a shape tilted outward with the lower end portion as the center is provided .

According to a fifth aspect of the invention, in the container according to any one of the first to fourth aspects, the slide protrusion is inclined so as to protrude toward the lateral displacement regulating ridge as it goes upward from its lower end. It is characterized in that the guided surface is formed .

[Inventions of Claims 1 to 4 ]
According to the configuration of claims 1 , 2 , and 4 , when the slide stacking operation is performed, the upper container is laterally displaced with respect to the lower container, and only one slide projecting portion is one lateral displacement restricting projection. Even if the other slide protrusion is outside the other lateral displacement restricting protrusion, the middle part of the lateral displacement restricting protrusion is lower than both ends. Since it is a restricting part, the other slide projecting part is moved outside the lateral displacement restricting ridge just by slightly lifting the other slide projecting part of the upper container, and the side wall of the lower container It can be brought into contact with the upper surface. That is, according to the present invention, when performing the slide stacking operation of the container, the pair of slide protrusions of the upper container are smoothly arranged outside the pair of lateral displacement regulating protrusions of the lower container. Is possible.
Further, according to the configuration of the first aspect, since the curvature radius of the curved surface of the corner portion is relatively small at both end portions (height restriction portions) of the lateral displacement restricting protrusion, the slide protrusion is located outside the lateral displacement restricting protrusion. It becomes difficult to get over from inside. Further, since the curvature radius of the curved surface of the corner portion is relatively large at the intermediate portion of the lateral displacement regulating ridge (low height regulating portion), when the slide projection abuts against the lateral displacement regulating ridge from above, the lateral displacement is suppressed. Smooth guidance to the outside of the regulation protrusion is possible.
According to the configuration of claim 2, since the curvature radius of the curved surface of the corner portion is relatively small in the intermediate portion of the lateral displacement regulating ridge (the low-length regulating portion), the slide projection projects the lateral displacement regulating ridge from the outside to the inside. It becomes difficult to get over. In addition, since the curvature radius of the curved surface of the corner is relatively large at both ends (height restriction portion) of the lateral displacement regulating ridge, when the slide projection abuts the lateral displacement regulating ridge from above, the lateral displacement is Smooth guidance to the outside of the regulation protrusion is possible.
According to the configuration of the third and fourth aspects, even if the upper container is lowered toward the lower container in a state where the upper container is largely displaced, it is provided at a position facing the intermediate portion of the lateral displacement regulating protrusion. The upper container is guided to the side where the lateral displacement is reduced by the vertical inclined guide surface. This makes it possible to smoothly guide the pair of slide protrusions of the upper container to the outside of the pair of lateral displacement restricting protrusions of the lower container when performing the slide stacking operation of the container.

[Invention of claim 5 ]
According to the configuration of the fifth aspect , when the container is inclined and the pair of slide protrusions are disposed outside the pair of lateral displacement restricting protrusions in the other container, Even if the upper container is laterally displaced with respect to the container and one slide protrusion abuts against one lateral displacement restriction ridge from above, the sliding contact between the guide surface of the slide protrusion and the lateral displacement restriction ridge Thus, the pair of slide protrusions are guided to the outside of one lateral displacement restricting protrusion. Thereby, it becomes possible to arrange | position smoothly a pair of slide protrusion part of an upper container on the outer side of a pair of horizontal displacement control protrusion of a lower container.

The perspective view of the container which concerns on 1st Embodiment of this invention. The perspective view of the container seen from the direction different from FIG. Perspective view of the bottom side of the container Bottom view of container A bottom view enlarging the vicinity of the corner of the container Enlarged perspective view near the corner of the container Enlarged perspective view near the corner of the container The perspective view which expanded the 1st side wall The top view which expanded the 1st side wall The perspective view which fractured | ruptured a part of 1st side wall An enlarged perspective view of the lateral displacement regulating protrusion Perspective view of container during slide stacking An enlarged perspective view of a part of a container during slide stacking Sectional drawing of the container in A cut surface of FIG. Partial expanded sectional view of the container in A cut surface of FIG. Partial expanded sectional view of the container in A cut surface of FIG. Partial cross-sectional view of upper and lower containers during slide stacking operation Perspective view of stacked containers Perspective view of nested container The perspective view which expanded the lateral displacement control protrusion in the container of a 2nd embodiment. Partial cross-sectional view of upper and lower containers during slide stacking operation A perspective view of a conventional container Side view of a conventional container

[First Embodiment]
Hereinafter, an embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the container 10 of the present embodiment has a box-like structure with an open top surface, and its bottom wall 16 has a mesh structure and a rectangular shape as shown in FIG. The pair of side walls arranged on the short side portion of the outer edge of the bottom wall 16 forms a pair of first side walls 11, 11, while the pair of side walls arranged on the long side portion forms a pair of first side walls. Two side walls 12 and 12 are formed. Further, the first and second side walls 11 and 12 are inclined so as to extend obliquely outward and upward from the bottom wall 16 (see FIG. 14).

  As shown in FIG. 1, a plurality of rectangular through holes 17 are partially formed at lower positions of the first and second side walls 11, 12, and the first and second side walls 11, 12 are formed. Part of has a mesh structure. In the following description, the facing direction of the first side walls 11 and 11 is referred to as a first horizontal direction H1, and the facing direction of the second side walls 12 and 12 is referred to as a second horizontal direction H2.

  As shown in FIG. 1, the container 10 includes a flange 13 that protrudes laterally from the upper end portion thereof. Further, in the vicinity of the corner portion 10C of the four corners of the container 10, the corner flange 14 projects sideways from the lower position of the flange 13, and in the portion excluding the vicinity of the corner portion 10C, the corner flange 14 is on the side from the lower position of the flange 13. A reinforcing flange 15 protrudes in the direction. Further, the corner flange 14 is positioned at the approximate center of the container 10 in the vertical direction, and the reinforcing flange 15 is positioned between the flange 13 and the corner flange 14 in the vertical direction of the container 10. Further, the corner flange 14 and the flange 13 are connected by a plurality of vertical ribs 14L, and the reinforcing flange 15 and the flange 13 are connected by a plurality of vertical ribs 15L. Then, both end portions of the reinforcing flange 15 are connected to the vertical ribs 14L at the end portions of the corner flange 14, respectively. In addition, at the center of the four sides of the container 10, a part of the reinforcing flange 15 protrudes upward, and as shown in FIG.

  As shown in FIGS. 1 and 2, the outer surface of the container 10 has a plurality of stacked support protrusions (reference numerals 20, 22, and 2 in FIGS. 1 and 2) between an intermediate position in the vertical direction and a position near the lower end. 24, 26) are projectingly formed. The overall shape of the container 10 including these stacked support protrusions is line-symmetric with respect to the center line CL1 (see FIG. 4) of the container 10 in the first horizontal direction H1, while the second horizontal direction H2. The container 10 has a non-axisymmetric shape with respect to the center line (not shown) of the container 10. The details are as follows.

  As shown in FIG. 4, the plurality of stacked support protrusions are provided in pairs on the first and second side walls 11 and 12, and both corner portions of the first and second side walls 11 and 12 are provided. Each of the corner flanges 14 is arranged separately in the vicinity of 10C and is located below each corner flange 14. Further, these stacking support protrusions are relatively close to the center-side stacking support protrusions 22 and 26 disposed at positions relatively far from the corner portion 10C and the corner portion 10C, even in the vicinity of the corner portion 10C. The first side walls 11 and 11 can be divided into one end side in the second horizontal direction H2 of each pair of the first side walls 11 and 11. A center-side stacking support protrusion 22 is provided on the side of the second side wall 12 (that is, one of the second side walls 12 side), while an end-side stacking support protrusion 24 is provided on the other end side (the other second side wall 12 side). ing. Further, in the pair of second side walls 12, 12, center-side stacking support protrusions 26, 26 are provided at both end portions of one second side wall 12, while end portions of the other second side wall 12 are connected to both end portions. Protrusion support protrusions 20 and 20 are provided. Further, the laterally extending support protrusions 22 and 26 are substantially the same in width, and the laterally extending support protrusions 20 and 24 are also substantially the same in width. Further, the lateral width of the end-side product support protrusions 20 and 24 is about two to three times the lateral width of the center-side product support protrusions 22 and 26. In the following description, when the center-side stacking support projections 22 and 26 and the end-side stacking support projections 20 and 24 are generically referred to, only “stacking support projections” and “stacking support projections” are used. "Group".

  Next, a structure common to all the loading support protrusions will be described. As illustrated in FIG. 6, the stacking support protrusions 20 are typically a pair of protrusions that protrude from the side surface of the container 10 and extend in the vertical direction. The vertical ribs 20A and 20A are connected to each other at the lower end plate 20B. The upper ends of the pair of vertical ribs 20 </ b> A and 20 </ b> A are connected to the lower surface of the corner flange 14, and the lower ends of the vertical ribs 20 </ b> A and 20 </ b> A are disposed above the lower surface of the bottom wall 16. The lower end plate 20B has a horizontal plate shape and projects from the outer surface of the container 10 to the same position as the pair of vertical ribs 20A and 20A.

  Next, a structure peculiar to the end-side stacking support protrusion 20 and the center-side stacking support protrusion 26 arranged on the second side wall 12 will be described. As shown in FIG. 6, the end-side stacking support protrusion 20 and the center-side stacking support protrusion 26 (only the end-side stacking support protrusion 20 is shown in FIG. 6). 2), the lower end plate 20B is disposed so as to be shifted upward from the lower end surfaces of the longitudinal ribs 20A and 20A, and a pair of lower end plates 20B is provided at the lower portion of the lower end plate 20B. The front edge portions of the vertical ribs 20A and 20A are connected by an auxiliary communication wall 20C that is bent at a right angle downward from the front edge of the lower end plate 20B. The lower end surface of the auxiliary communication wall 20C is flush with the vertical ribs 20A and 20A. Further, the portion constituted by the lower end surface of the auxiliary communication wall 20C and the lower end surfaces of the vertical ribs 20A, 20A is the second portion in the lower container 10 when the container 10 is stacked on the other container 10. The lower end contact surface that contacts the upper surface of the side wall 12 ("lower end contact surface 20T" at the end-side stacking support projection 20, and "lower end contact surface 26T" at the center-side stacking support projection 26). See).

  Further, as shown in FIGS. 1 and 2, the vertical ribs disposed on the center side in the lateral direction of the second side wall 12 are provided below the end-side product stacking support projection 20 and the center-side product support support projection 26. A part of 20A is extended to the lower end of the container 10 and a lateral displacement regulating rib ("lateral displacement regulating rib 33 for the end-side stacking support projection 20" and "lateral displacement regulation rib 26 for the center-side stacking support projection 26" Ribs 34 "(see Fig. 4) are formed. Here, since the second side wall 12 is inclined obliquely outwardly upward as described above, the second side wall 12 is vertically downward from the intersection line between the lower surface of the corner flange 14 and the outer side surface of the second side wall 12 of the container 10. When an imaginary vertical surface is suspended, a space (hereinafter referred to as “side gradient space”) is formed between the imaginary vertical surface and the outer surface of the second side wall 12. Then, the upper end portions of the lateral displacement regulating ribs 33 and 34 are sized so as to slightly protrude outside the side slope space, and the entire portion excluding the upper end portions of the lateral displacement regulating ribs 33 and 34 is inside the side slope space. The size fits in.

  Next, a structure peculiar to the center-side product stacking support protrusion 22 and the end-side product support support projection 24 arranged on the first side wall 11 will be described. As shown in FIG. 7, only the center-side stacking support projection 22 and the end-side stacking support projection 24 disposed on the first side wall 11 (only the end-side stacking support projection 24 is shown in FIG. 7. 6), the lower surface of the lower end plate 20B and the lower surfaces of the vertical ribs 20A and 20A are flush with each other. Then, from the tip of the lower end plate 20B, a downward contact piece ("downward contact piece 23H" at the center-side stacked support protrusion 22 and "downward contact piece 25H" at the end-side support support protrusion 24). ) Protrudes vertically downward, and the lower end surface of the lower end contact rib contacts the upper surface of the first side wall 11 of the lower container 10 when the container 10 is stacked on the other container 10. It is a surface (“lower end abutment surface 23T” for the center-side raised support projection 22 and “lower end abutment surface 25T” for the end-side rise support projection 24, see FIG. 5). The lower end contact surfaces 23T and 25T are flush with the lower end contact surfaces 20T and 26T of the end-side product support protrusions 20 and the center-side product support protrusions 26 of the second side wall 12 described above. Yes.

  As shown in FIG. 7, a pair of reinforcements that communicate with the lower surface of the lower end plate 20B at both lateral ends of the downward contact pieces 23H and 25H (see FIG. 6 for the downward contact piece 23H). Ribs 27L and 27L are provided. And the slide protrusions 23 and 25 which concern on this invention are comprised from the downward contact pieces 23H and 25H and the reinforcement rib 27L. Further, the reinforcing ribs 27L and 27L include a guide surface 27S according to the present invention inclined so as to protrude toward the first side wall 11 from the lower end contact surfaces 23T and 25T, and an upper end of the guide surface 27S. A vertical surface 27U extending vertically upward from the portion is formed.

  As shown in FIG. 6, lateral displacement regulating ribs (center-side stacking support) extending from the lower end plate 20 </ b> B to the lower end of the container 10 are provided below the center-side stacking support projection 22 and the end-side stacking support projection 24. The protrusion 22 is provided with a “lateral deviation restriction rib 31”, and the end-side stacking support protrusion 24 is provided with a “lateral deviation restriction rib 32” (see FIG. 7). These lateral displacement restricting ribs 31 and 32 also have a size such that the upper end portion slightly protrudes outside the above-described side gradient space, and excludes the upper end portion, similarly to the lateral displacement restricting ribs 33 and 34 of the second side wall 12. The whole is sized to fit inside the side gradient space.

  Now, as shown in FIG. 5, lateral displacement regulating projections 30 are formed so as to project between the center-side stacked support projections 22 and the corners 10 </ b> C of the outer surfaces of the first side walls 11. . As shown in FIG. 6, the lateral displacement restricting protrusion 30 is disposed adjacent to a boundary line R <b> 1 between the outer surface of the first side wall 11 and the outer curved surface of the corner portion 10 </ b> C, and from the lower surface of the corner flange 14. The container 10 extends to a position slightly above the lower end of the container 10. Further, in the lateral displacement restricting protrusion 30, the lower portion from the substantially same position as the upper end portion of the lateral displacement restricting rib 31 in the vertical direction is the displacement restricting portion 30A, and the leading end surface of the displacement restricting portion 30A is It is substantially the same as the front end surface of the lateral displacement regulating rib 31. Further, as shown in FIG. 15, the distal end surface of the lateral displacement restricting protrusion 30 on the upper side of the displacement restricting portion 30 </ b> A is located outside the distal end surface of the displacement restricting portion 30 </ b> A. In addition, the amount of protrusion of the upper side portion of the lateral displacement restricting protrusion 30 above the displacement restricting portion 30 </ b> A gradually decreases from the outer surface of the first side wall 11 due to the inclination of the outer surface of the first side wall 11. It has a shape.

  This completes the description of the structure of the outer surface of the container 10. Next, the structure of the inner surface and the upper surface of the container 10 will be described. As shown in FIGS. 1 and 2, a plurality of protrusion receiving grooves (reference numerals 40, 42, 44, and 46 in FIGS. 1 and 2) are recessed in the inner surface of the container 10. The plurality of protrusion receiving grooves have a rectangular groove shape extending in the vertical direction from the upper surface of the container 10 to the corner flange 14, and are arranged in the vicinity of the corner portion 10 </ b> C, like the stacked support protrusions. Has been. A portion of the first side wall 11 and the second side wall 12 where the protrusion receiving groove is formed has a prismatic shape on the outer surface side and extends between the flange 13 and the corner flange 14.

  The plurality of projecting portion receiving grooves are arranged in the vicinity of the corner portion 10C in the vicinity of the corner portion 10C in the same manner as the stacked support projecting portion group. It can be divided into end-side protrusion receiving grooves 40 and 44 arranged at positions relatively close to the corner portion 10C. As shown in FIG. 2, one second side wall 12 having a pair of center-side stacking support protrusions 26, 26 on the outer side face is provided by the center-side stacking support protrusions 26, 26. The end-side protrusion receiving grooves 40, 40 are disposed at positions close to the corner portions 10C, 10C. On the contrary, as shown in FIG. The center side protrusion receiving grooves 46 and 46 are disposed on the other second side wall 12 provided at the center of the second side wall 12 at positions farther from the corner parts 10C and 10C than the stacked support protrusions 20 and 20 near both ends. The distance between the end-side protrusion receiving grooves 40, 40 of one second side wall 12 and the lateral width of each end-side protrusion receiving groove 40 are such that the end-side stacking support protrusions 20, It is the same as the space | interval of 20 and the lateral width of the near-end stacked support protrusions 20. Further, the distance between the center-side protrusion receiving grooves 46, 46 of the other second side wall 12 and the lateral width of each center-side protrusion receiving groove 46 are set so that the center-side stacked support protrusions 26, It is the same as the space | interval of 26, and the horizontal width of each center side stacking support protrusion 26. FIG.

  Further, as shown in FIGS. 1 and 2, on both first side walls 11, 11, a center-side protrusion receiving groove 42 is disposed at a position farther from the corner portion 10 </ b> C than the end-side product support protrusion 24, and An end-side protrusion receiving groove 44 is disposed at a position closer to the corner portion 10 </ b> C than the center-side stacking support protrusion 22. The distance between the center-side protrusion receiving groove 42 and the end-side protrusion receiving groove 44 is the distance between the end-side stacking support protrusion 24 and the center-side stacking support protrusion 22 provided on the first side wall 11. The lateral width of the center-side protrusion receiving groove 42 is the same as the lateral width of the center-side stacking support protrusion 22, and the lateral width of the end-side protrusion receiving groove 44 is the same as that of the end-side stacking support protrusion 24. It is the same as the width.

  As a result, when another container 10 is rotated 180 degrees with respect to the container 10 and stacked from above, the stacking support protrusions 20 and 24 near the end of the upper container 10 are projected toward the end of the lower container 10. The nesting state is received in the portion receiving grooves 40, 44 and the center-side stacked upper support protrusions 22, 26 of the upper container 10 are received in the center-side protrusion receiving grooves 42, 46 of the lower container 10. (See FIG. 19). In the nesting state, the corner flange 14 of the upper container 10 abuts on the flange 13 of the lower container 10.

  As described above, stacking a plurality of containers in a nesting state is hereinafter simply referred to as “nesting containers” as appropriate. Further, as described later, stacking a plurality of containers in a stacking state is hereinafter simply referred to as “stacking containers”, and further, stacking in a slide stacking operation is referred to as “slide stacking” as appropriate. And Furthermore, when the end-side protrusion receiving grooves 40 and 44 and the center-side protrusion receiving grooves 42 and 46 are collectively referred to, they are simply referred to as a “projection receiving groove” and a “projection receiving groove group”.

  As shown in FIG. 1 and FIG. 2, a lateral displacement regulating rib below each stacked support projection is formed at the intersection of the bottom surface of each projection receiving groove and the inner surface of the first side wall 11 and the second side wall 12. Cutout portions 40A, 42A, 44A, and 46A for avoiding interference with the upper ends of 31, 32, 33, and 34 are formed. Further, as described above, the whole of the lateral displacement restricting ribs 31, 32, 33, 34 excluding the upper end is sized to fit inside the side slope space, so that when the nesting is performed, the lower container 10 Fits inside the inner surface.

  As shown in FIG. 1, a rib receiving groove 50 is formed in each first side wall 11 on the corner portion 10 </ b> C side from the center-side protruding portion receiving groove 42. The rib receiving groove 50 has a rectangular groove shape extending upward from the corner flange 14 in the same manner as the protrusion receiving groove. Further, the portion of the first side wall 11 where the rib receiving groove 50 is formed has a prismatic shape on the outer surface side and extends between the flange 13 and the corner flange 14 like the protrusion receiving groove. Yes. As described above, when the container 10 is nested, the upper side portion of the lateral displacement restricting protrusion 30 with respect to the displacement restricting portion 30 </ b> A is received in the rib receiving groove 50.

  As shown in FIG. 1, a part of the upper surface of the flange 13 is recessed in a stepped shape on the upper surface of one second side wall 12 provided with the end-side protrusion receiving grooves 40, 40, and a pair of central collisions. Partial placement surfaces 41 and 41 are formed. Each center abutment portion mounting surface 41 has a rectangular shape, and is disposed on the opposite side of the corner portion 10C with respect to each end-side projection receiving groove 40, and the center-side stacking support projection 26 (see FIG. 2). The whole is covered from above. Specifically, the flange 13 is formed on the edge of the central abutment mounting surface 41 on the side away from the end-side protrusion receiving groove 40 and the edge on the side remote from the inner surface of the second side wall 12. Is provided with a step surface between the upper surface and the central abutment mounting surface 41. Further, the central bumping portion mounting surface 41 is connected to a state substantially orthogonal to the inner side surface of the end-side protruding portion receiving groove 40 and the inner side surface of the second side wall 12. Furthermore, the step surface between the edge of the central abutment portion placement surface 41 on the side away from the inner surface of the second side wall 12 and the upper surface of the flange 13 is the second in the end-side projection receiving groove 40. It is flush with the inner surface of the side wall 12 away from the inner surface.

  As shown in FIG. 2, a part of the upper surface of the flange 13 is depressed in a stepped manner on the upper surface of the other second side wall 12 having the center-side protrusion receiving grooves 46, 46. Projection mounting surfaces 47 and 47 are formed. Each end bumping portion mounting surface 47 has a rectangular shape extending from the upper end opening edge of each center side protruding portion receiving groove 46 toward the corner portion 10C, and is flush with the central bumping portion mounting surface 41. Yes. Each end bumping portion mounting surface 47 covers the entire end-side stacked support projection 20 (see FIG. 1) from above. In addition, each end bumping portion mounting surface 47 has a step surface between the upper surface of the flange 13 and the center protruding portion receiving groove 46 in the same manner as the central bumping portion mounting surface 41 described above. The side surface and the inner side surface of the second side wall 12 are connected in a substantially orthogonal state.

  As shown in FIGS. 1 and 2, the upper surface of each first side wall 11 including the upper surface of the flange 13 has an end-side protrusion receiving groove 44 and a center-side protrusion receiving portion between the corner portions 10C, 10C at both ends. A belt-like protrusion placement surface 43 (corresponding to the “protrusion contact area” according to the present invention) is formed over the entire surface excluding the groove 42. Specifically, the belt-like protrusion mounting surface 43 is depressed so that a part of the upper surface of the flange 13 is substantially flush with the central bumping part mounting surface 41 and the end bumping part mounting surface 47. It becomes. The belt-like protrusion mounting surface 43 forms a belt-like shape, and the inner surface of the upper edge opening edge of the edge-side protrusion receiving groove 44 from the edge on the rib receiving groove 50 side to the corner 10C of the rib receiving groove 50. And is divided by a center-side protrusion receiving groove 42 at a position near the rib receiving groove 50. In addition, a stepped surface is provided between the upper surface of the flange 13 and the band-shaped projecting portion mounting surface 43 at the edge of the strip-shaped projecting surface 43 on the rib receiving groove 50 side, It is flush with the inner surface of the rib receiving groove 50.

  As shown in FIG. 8, a guide is provided between the upper surface of the flange 13 and the band-shaped protrusion mounting surface 43 on the edge of the band-shaped protrusion mounting surface 43 on the side away from the inner surface of the first side wall 11. A stepped portion 54 is provided. Both end portions of the guide step portion 54 are vertical guide surfaces 54D and 54D according to the present invention, and a pair of laterally inclined guide surfaces 54A and 54A and the present invention are between the vertical guide surfaces 54D and 54D. A longitudinally inclined guide surface 54B is formed. The vertical guide surfaces 54 </ b> D and 54 </ b> D stand substantially vertically from the belt-like protrusion mounting surface 43, and are flush with the inner surfaces of the end-side protrusion receiving groove 44 and the center-side protrusion receiving groove 42. The end portions of the vertical guide surfaces 54D and 54D on the side of the laterally inclined guide surfaces 54A and 54A are further connected to the end portions of the corner flanges 14 and 14 (see FIG. 1) at both ends of the first side wall 11 closer to each other. It is arranged at a position shifted to the approaching side. The laterally inclined guide surfaces 54A and 54A are formed by bending outwardly the imaginary extension surfaces of the vertical guide surfaces 54D and 54D around the vertical folding lines L3 and L3 at the ends of the vertical guide surfaces 54D and 54D. None (see FIG. 9), the longitudinally inclined guide surface 54B has a shape in which an imaginary extension surface of the vertical guide surfaces 54D and 54D is inclined outward with the lower end portion as a center. Thereby, intersecting lines L4 and L4 are formed extending obliquely upward from the lower ends of the vertical folding lines L3 and L3 between the laterally inclined guide surfaces 54A and 54A and both ends of the vertically inclined guide surface 54B.

  A lateral displacement regulating protrusion 53 projects from an edge of the belt-shaped protrusion mounting surface 43 on the inner surface side of the first side wall 11. Both end portions of the lateral displacement regulating ridge 53 are arranged so as to deviate from the pair of vertical folding lines L3, L3 in the guide step portion 54 toward the corner portions 10C, 10C by a certain amount. And from the both ends to the position which opposes the vertical folding lines L3 and L3 in the lateral displacement regulating ridge 53, the height regulating portions 53A and 53A having a uniform height are formed. Further, the intermediate portion in the longitudinal direction of the lateral displacement regulating protrusion 53 is a low length regulating portion 53C extending at a uniform height lower than the high length regulating portions 53A, 53A, and the high length regulating portions 53A, 53A. A pair of contact inclination restricting portions 53B and 53B that gradually become lower from the height restricting portions 53A and 53A toward the height restricting portion 53C. Further, as shown in FIG. 10, the height from the belt-like protrusion placement surface 43 to the upper surface of the flange 13 is substantially the same as the height from the belt-like protrusion placement surface 43 to the upper surface of the flange 13. It is the same. Further, as shown in FIG. 17, the intersection P <b> 1 between the guide surface 27 </ b> S and the vertical surface 27 </ b> U in the slide projection 23 is in a state where the slide projection 23 is brought into contact with the belt-like projection placement surface 43. The height is set to be substantially the same as the upper surface of the portion 53C.

  Moreover, as shown in FIG. 11, the corner | angular surface curved surface of the upper end corner | angular part by the side of the strip | belt-shaped protrusion mounting surface 43 among the horizontal displacement control protrusion 53 differs with parts. That is, in this embodiment, the curvature radius of the corner curved surface 53X of the height regulation portion 53A is smaller than the curvature radius of the corner curved surface 53Z of the low height regulation portion 53C. And the curvature radius of the corner | angular part curved surface 53Y of the connection inclination control part 53B is gradually small toward the end part by the side of the height regulation part 53A from the edge part by the side of the height regulation part 53C.

Further, as shown in FIG. 15, the dimension between a pair of guide stepped portions 54, 54 (specifically, between the vertical guide surfaces 54D, 54D (see FIG. 17)) is L1, and a pair of The dimension between the outer surfaces of the slide projections 23, 23 is L2, and the dimension between the vertical surfaces 27U, 27U of the pair of slide projections 23, 23 is L3. When the dimension between the side surfaces on the side of the belt-like protrusion mounting surface 43 is L4, in the container 10 of the present embodiment, each dimension has the following relationship.
(L1-L2) <(L3-L4)
That is, the clearance between the slide protrusion 23 and the guide step portion 54 is smaller than the clearance between the slide protrusion 23 and the lateral displacement regulating protrusion 53.

  The region on the rib receiving groove 50 side of the center-side protruding portion receiving groove 42 in the band-shaped protruding portion mounting surface 43 shown in FIG. 8 is the end bumping portion mounting surface corresponding to the end bumping portion mounting surface 47 described above. The end bumping portion mounting portion 43A covers the entire near-end stacking support protrusion 24 (see FIG. 1) from above. Further, a region of the belt-like protrusion placement surface 43 that is closer to the end than the end of the lateral displacement regulating ridge 53 is closer to the end of the protrusion-receiving groove 44. It becomes the mounting part 43B, and this central abutment part mounting part 43B covers the entire center-side stacking support protrusion 22 (see FIG. 1) from above. And when the other container 10 is piled up from the top in the same direction with respect to the container 10, the lower end contact surfaces 20T and 25T (refer FIG. 5) of the near end product stacking support protrusions 20 and 24 of the upper container 10 are obtained. The lower end abutment surface 23T of the upper side container 10 and the upper abutment portion mounting surface 47A of the upper container 10 and the lower end abutment surface 23T of the upper container 10 , 26T (see FIG. 5) is in a stacking state in contact with the central abutment portion placement surface 41 and the central abutment portion placement portion 43B of the lower container 10 (see FIG. 18). In the stacking state, the lateral displacement regulating ribs 31, 32, 33, 34 (see FIG. 4) of the upper container 10 are brought into contact with the upper inner surface of the lower container 10, and the upper and lower The lateral displacement of the containers 10 and 10 is suppressed.

  As shown in FIG. 8, the locking protrusion 51 protrudes from the edge on the inner surface side of the first side wall 11 in the end bumping portion mounting portion 43 </ b> A. The locking protrusion 51 is disposed at the longitudinal intermediate portion of the end protrusion mounting part 43A. Similarly, the locking protrusion 52 protrudes from the edge on the inner side surface side of the first side wall 11 in the center bump portion placement portion 43B. Similarly to the locking ridge 51, the locking ridge 52 is also disposed in the middle portion in the longitudinal direction of the center bump portion mounting portion 43B. When the container 10 is stacked, the locking protrusion 51 is opposed to the slide protrusion 25 of the near-end stacking support protrusion 24, and the locking protrusion 52 is the slide protrusion of the center-side stacking support protrusion 22. 23.

  This completes the description of the configuration of the container 10 of the present embodiment. Next, the effect of this container 10 is demonstrated. As described above, the container 10 according to the present embodiment is in a stacking state when the containers 10 are stacked in the same direction, and is in a nesting state when the upper and lower containers 10 are stacked with the direction different by 180 degrees. When stacking in the stacking state and nesting state, the upper container 10 may be lowered from the lower container 10 from above, and the upper container 10 may be stacked with respect to the lower container 10. Work efficiency is improved by performing a slide stacking operation.

  First, a slide stacking operation (that is, slide stacking) when stacking will be described. In order to perform slide stacking, as shown in FIG. 12, the upper-side container 10 near the center of the upper surface of the pair of first side walls 11, 11 of the lower container 10, The upper and lower containers 10 may be brought into an inclined posture by bringing the slide protrusions 23 and 23 into contact with each other, and the upper container 10 may be slid in the second horizontal direction H2 on the upper surface of the lower container 10.

  Specifically, as shown in FIG. 15, the slide protrusions 23, 23 of the upper container 10 are placed at intermediate positions in the second horizontal direction H <b> 2 on the both band-shaped protrusion placement surfaces 43, 43 of the lower container 10. Abut (see FIG. 13). Here, in the container 10 of the present embodiment, as shown in FIG. 15, the clearance between the slide protrusion 23 and the guide stepped portion 54 is between the slide protrusion 23 and the lateral displacement regulating protrusion 53. In general, when the upper container 10 is shifted laterally with respect to the lower container 10, the upper inclined guide surface 54B of the guide stepped portion 54 of the lower container 10 is on the upper side. The sliding projections 23 and 23 in the container 10 are in sliding contact with each other, so that the upper container 10 is guided to a regular position.

  However, when the lower container 10 is deformed by the pressure of the load, the clearance between the slide protrusion 23 and the lateral displacement regulating protrusion 53 is more than the clearance between the slide protrusion 23 and the guide step 54. May be smaller. In such a case, when the upper container 10 is laterally displaced, as shown in FIG. 16, the slide protrusion 23 is formed on the intermediate portion (the low-length restricting portion 53 </ b> C) of the lateral displacement restricting protrusion 53 in the lower container 10. When the guide surface 27S is in sliding contact, the upper container 10 is guided to the proper position.

  At this time, the upper container 10 is largely shifted from the lower container 10, and only one slide protrusion 23 comes into contact with the belt-like protrusion placement surface 43 of the lower container 10, and the other In this embodiment, the intermediate portion of the lateral displacement restricting protrusion 53 is a lower height restricting portion 53C lower than both end portions even if the slide protrusion 23 of the other is displaced inward from the other lateral displacement restricting protrusion 53. Therefore, the other slide protrusion 23 can be moved outward from the lateral displacement restricting protrusion 53 only by slightly lifting the other slide protrusion 23 side of the upper container 10. In addition, since the radius of curvature of the corner curved surface 53Z of the low-length regulating portion 53C is relatively large, the sliding contact range between the corner curved surface 53Z and the guide surface 27S of the slide projection 23 is also increased, and the slide projection 23 Is easily guided to the outside (the guide stepped portion 54 side) from the lateral displacement regulating protrusion 53. Thus, in the container 10 of the present embodiment, when the slide stacking operation is performed, the pair of slide protrusions 23 and 23 of the upper container 10 are replaced with one of the lower container 10 as shown in FIG. It can be smoothly arranged on the outer side (the guide stepped portion 54 side) of the pair of lateral displacement regulating protrusions 53, 53.

  In this state, the upper container 10 is held in an inclined posture and is slid in the second horizontal direction H2 (see FIG. 12) to move to a position directly above the lower container 10. Then, due to the variation in the slide operation, the upper container 10 can receive the operation force in the direction perpendicular to the slide direction with respect to the lower container 10. However, as shown in FIG. 15, the pair of lateral displacement restricting protrusions 30, 30 provided in the upper container 10 includes the first side wall 11 of the upper container 10 and the first side wall 11 of the lower container 10. The lateral displacement of the upper and lower containers 10, 10 is suppressed, and the center-side stacked support protrusions 22, 22 of the upper container 10 are arranged at the first side walls 11, 11 of the lower container 10. Occurrence of a situation that deviates from the top is prevented.

  In addition, in this embodiment, as shown in FIG. 11, the corner curved surface 53X at the end of the lateral displacement regulating ridge 53 has a smaller radius of curvature than the corner curved surface 53Z at the center, and the lateral displacement regulating ridge. 53, in the corner curved surface 53Y of the connecting inclination restricting portion 53B between the end portion and the intermediate portion, the radius of curvature gradually decreases toward the end portion of the lateral displacement restricting protrusion 53, so the upper container As 10 approaches the position directly above the lower container 10, the slide protrusion 23 becomes difficult to get over the lateral displacement regulating protrusion 53, and the lateral displacement prevention effect is enhanced. These enable stable slide stacking operations. When the upper container 10 is slid, the front end portion in the sliding direction of the upper container 10 comes into contact with the inner side surface of the second side wall 12 of the lower container 10 and stops there. If 10 is returned to a horizontal posture, it will be in a stacking state.

  Further, when nesting containers 10, the pair of first containers 10 in the lower container 10 is turned in the same manner as in the case of stacking by turning the upper container 10 by 180 degrees with respect to the lower container 10. What is necessary is just to slide the upper container 10 into an inclined posture by abutting the center-side stacked support protrusions 22, 22 of the upper container 10 near the center of the upper surface of the side walls 11, 11.

[Second Embodiment]
The container 10V of the present embodiment is shown in FIGS. 20 and 21, and the structure of the lateral displacement regulating protrusion 53V is different from that of the first embodiment. That is, in this container 10V, as shown in FIG. 20, the curvature radius of the corner curved surface 53Z of the low height regulating portion 53C is smaller than the curvature radius of the corner curved surface 53X of the high height regulating portion 53A. And the curvature radius of the corner | angular surface curved surface 53Y of the connection inclination control part 53B is gradually small toward the end part by the side of the height regulation part 53C from the edge part by the side of the height regulation part 53A. Further, as shown in FIG. 21, the intersection of the guide surface 27 </ b> S and the vertical surface 27 </ b> U in the slide protrusion 23 in a state where the lower end contact surface 23 </ b> T of the slide protrusion 23 is in contact with the belt-like protrusion mounting surface 43. P1 is set so as to be disposed further below the corner curved surface 53Z of the low length regulating portion 53C.

According to the container 10V of the present embodiment, it is difficult for the slide projection 23 to get over the lateral displacement regulating ridge 53V from the outside to the inside at the intermediate portion (low-length regulating portion 53C) of the lateral displacement regulating ridge 53V. Further, when the slide projection 23 is pressed from above onto the end (high-length regulation portion 53A) of the lateral displacement regulating ridge 53V, the slide projection 23 is smoothly guided to the outside of the lateral displacement regulating ridge 53V. can do.
[Other Embodiments]
The present invention is not limited to the above-described embodiment. For example, the embodiments described below are also included in the technical scope of the present invention, and various other than the following can be made without departing from the scope of the invention. It can be changed and implemented.

(1) The guide surface 27S provided in the slide protrusion 23 of the above embodiment is a flat surface, but may be a curved surface.

(2) In the above embodiment, an example in which the present invention is applied to a stackable and nestable container has been described. However, the present invention may be applied to a container that can only be stacked.

10,10V container 11 1st side wall (side wall)
20, 24 Near end stacking support protrusions 22, 26 Near center stacking support protrusions 23, 25 Slide protrusions 27S Guide surface 43 Band-like protrusion placement surface (projection contact area)
53, 53V Lateral displacement regulating protrusion 53A High height regulating portion 53B Contact inclination regulating portion 53C Low height regulating portion 53X, 53Y, 53Z Corner curved surface 54 Guide stepped portion 54B Vertical inclined guide surface 54D Vertical guide surface

Claims (5)

A box-shaped structure with an open top surface is provided, and a plurality of stacked support protrusions are provided on each outer surface of a pair of side walls facing each other, and slide protrusions are formed to protrude from the bottom surface of the stack support protrusions. , A container in which a pair of lateral displacement restricting protrusions are formed to project from the inner edge of the upper surface of the pair of side walls,
When the containers are stacked, the pair of slide protrusions of the pair of side walls are brought into contact with the upper surfaces of the pair of side walls of the lower container with the upper container in an inclined posture, and In the container in which the upper container is slidably moved to a position directly above the lower container in a state where the pair of lateral displacement regulating protrusions are disposed between the slide protrusions,
The lateral displacement regulating ridge has a pair of high length regulating portions extending at a constant height at both ends in the longitudinal direction, and a constant height lower than the height regulating portion in the middle portion in the longitudinal direction. And a pair of connecting inclination regulating portions communicating between the pair of high length regulating portions and the low length regulating portion ,
A corner curved surface that communicates between a side opposite to the inner side surface of the side wall of the lateral displacement regulating ridge and an upper surface of the lateral displacement regulating ridge is formed, and the corner curved surface of the low length regulating portion is formed. The radius of curvature of the corner curved surface of the height regulating portion is made smaller than the radius of curvature of the height regulating portion, and the radius of curvature of the corner curved surface of the connecting inclination regulating portion is adjusted from the end on the side of the height regulating portion to the height regulation. A container characterized by being gradually made smaller toward the end on the side . A box-shaped structure with an open top surface is provided, and a plurality of stacked support protrusions are provided on each outer surface of a pair of side walls facing each other, and slide protrusions are formed to protrude from the bottom surface of the stack support protrusions. , A container in which a pair of lateral displacement restricting protrusions are formed to project from the inner edge of the upper surface of the pair of side walls,
When the containers are stacked, the pair of slide protrusions of the pair of side walls are brought into contact with the upper surfaces of the pair of side walls of the lower container with the upper container in an inclined posture, and In the container in which the upper container is slidably moved to a position directly above the lower container in a state where the pair of lateral displacement regulating protrusions are disposed between the slide protrusions,
The lateral displacement regulating ridge has a pair of high length regulating portions extending at a constant height at both ends in the longitudinal direction, and a constant height lower than the height regulating portion in the middle portion in the longitudinal direction. And a pair of connecting inclination regulating portions communicating between the pair of high length regulating portions and the low length regulating portion,
A corner curved surface that communicates between a side surface of the lateral displacement regulating ridge opposite to an inner surface of the side wall and an upper surface of the lateral displacement regulating ridge is formed, and the corner curved surface of the height regulating portion is formed. The radius of curvature of the curved surface of the corner of the low-length regulating portion is made smaller than the radius of curvature of the curved portion, and the curvature radius of the curved surface of the corner of the connecting inclination regulating portion is controlled from the end on the high-height regulating portion side. A container characterized by being gradually made smaller toward the end on the side. A guide stepped portion is formed on the upper surface of the pair of side walls so as to face the lateral displacement regulating ridge across a protruding contact area where the slide protruding portion can contact, A vertical guide surface standing vertically from the protrusion contact region on the upper surface of the side wall is provided at a position facing the height regulating portion, and the position of the guide stepped portion facing the low height regulating portion is The container according to claim 1 or 2, further comprising a vertically inclined guide surface having a shape in which an imaginary surface obtained by extending a vertical guide surface is tilted outward with a lower end portion as a center. A box-shaped structure with an open top surface is provided, and a plurality of stacked support protrusions are provided on each outer surface of a pair of side walls facing each other, and slide protrusions are formed to protrude from the bottom surface of the stack support protrusions. , A container in which a pair of lateral displacement restricting protrusions are formed to project from the inner edge of the upper surface of the pair of side walls,
When the containers are stacked, the pair of slide protrusions of the pair of side walls are brought into contact with the upper surfaces of the pair of side walls of the lower container with the upper container in an inclined posture, and In the container in which the upper container is slidably moved to a position directly above the lower container in a state where the pair of lateral displacement regulating protrusions are disposed between the slide protrusions,
The lateral displacement regulating ridge has a pair of high length regulating portions extending at a constant height at both ends in the longitudinal direction, and a constant height lower than the height regulating portion in the middle portion in the longitudinal direction. And a pair of connecting inclination regulating portions communicating between the pair of high length regulating portions and the low length regulating portion,
A guide stepped portion is formed on the upper surface of the pair of side walls so as to face the lateral displacement regulating ridge across a protruding contact area where the slide protruding portion can contact, A vertical guide surface standing vertically from the protrusion contact region on the upper surface of the side wall is provided at a position facing the height regulating portion, and the position of the guide stepped portion facing the low height regulating portion is A container comprising a vertically inclined guide surface having a shape in which an imaginary surface obtained by extending a vertical guide surface is tilted outward with a lower end portion as a center. The guide surface according to any one of claims 1 to 4, wherein a guide surface that is inclined so as to protrude toward the lateral displacement regulating ridge as it goes upward from a lower end portion of the slide projection is formed. Container described in.