JP6214339B2 - container - Google Patents

Description

  The present invention relates to a foamed synthetic resin container used for transporting merchandise.

  Conventionally, containers formed using foamed synthetic resin are known as containers used when goods are transported (for example, Patent Document 1 and Patent Document 2). The container includes a container body that is configured to have an opening that opens upward and is capable of accommodating a product, and a lid that closes the opening of the container body.

  A container main body is provided with the bottom wall in which goods are mounted, and the main body surrounding wall part which stands up from the peripheral part of this bottom wall. The lid includes a top wall that faces the bottom wall in a state in which the opening of the container body is closed, and a lid peripheral wall that hangs down from the peripheral edge of the top wall. Moreover, either one of a main body surrounding wall part or a cover body surrounding wall part is provided with the convex protrusion protrusion, and the other is provided with the concave fitting groove which the said protrusion protrusion fits. Therefore, when the opening of the container body is closed with the lid, the lid can be attached to the container body by fitting the fitting recess and the fitting protrusion.

  By the way, when transporting or storing the container to the destination, a plurality of container bodies covered with a cover body are stacked in a loading platform of a transport vehicle or the like from the viewpoint of transport and storage efficiency.

  In this case, a plurality of containers are formed by bringing the bottom surface of the bottom wall of the upper container (container main body) into contact (placement) with the upper surface of the top wall of the lower container (lid). It is stacked on the stage.

Japanese Utility Model Publication No. 63-34069 JP 2007-308140 A

  However, in the above conventional container, when the containers are stacked in a plurality of stages for the purpose of transportation and storage as described above, the bottom wall bottom surface and the top wall top surface that contact each other vertically are flat. The bottom wall of the upper container slides with respect to the top wall of the lower container, and the centers of gravity of the upper and lower containers tend to shake each other, making it difficult to stack a plurality of containers.

  Therefore, the present invention has been made in view of the above problems, and it is an object to provide a container that can stably stack a plurality of containers when the plurality of containers are stacked for the purpose of transportation or storage. And

The container according to the present invention has been made to solve the above-described problems, and includes a container body and a lid body made of a foamable synthetic resin, and the container body has a plate-like bottom wall and a front peripheral edge of the bottom wall. Bei example the erected frame-like side wall in the height direction end portion and the opening of the container body in section, the bottom wall, the bottom so that the center of gravity of the container body is arranged on the central axis of the bottom wall formed wall reinforcing ribs, the lid is e Bei a top wall for closing the opening of the container body so as to cap the container body, the top wall, lid when capped with a lid to the container body The top wall reinforcing rib is formed so that the center of gravity of the body is arranged on the center axis of the bottom wall, and when a plurality of container bodies covered with a lid are stacked, the lower lid body and the upper container body Is configured to be fitted to each other in the height direction of the side wall by the convex fitting portion and the concave fitting portion, and one of the fitting portion and the fitting portion. Is formed at a position corresponding to the side wall of the front side peripheral portion in the back side peripheral portion of the bottom wall, and the other of the fitting portion and the fitted portion is the top peripheral portion of the top wall, The bottom wall of the main body is formed at a position facing one of the fitting portion and the fitted portion of the bottom wall, and the thickness of the bottom wall is formed thinner than the side wall thickness including the bottom wall reinforcing rib, Is characterized in that it is formed thinner than the thickness of the bottom wall, including the top wall reinforcing ribs .

  According to the container having such a configuration, (a) the bottom wall is thinner than the side wall and the top wall is thinner than the bottom wall, thereby reducing the weight of the container, and (b) stacking a plurality of containers. When the lid of the lower container of the stack is fitted to the fitting part and the fitted part, the position corresponding to the side wall of the front side peripheral part in the back side peripheral part of the bottom wall of the container body of the upper container is lowered. (C) Since the center of gravity of the container main body and the lid are respectively arranged on the center axis of the bottom wall by the bottom wall reinforcing rib and the top wall reinforcing rib, the bottom of the upper container Since the wall is supported with respect to the top wall of the lower container and the centers of gravity of the upper and lower containers are not easily shaken, a plurality of containers can be stably stacked for the purpose of transportation and management. Furthermore, in such a container, the strength of the container body and the lid can be ensured by the bottom wall reinforcing rib and the top wall reinforcing rib while reducing the weight as described above.

  Moreover, in the container which concerns on this invention, the said fitting part is protrudingly provided over the perimeter of the surface peripheral part of the said top wall, and the said to-be-fitted part is on the perimeter of the back surface peripheral part of the said bottom wall. It is also possible to configure so as to be provided over the entire surface.

  According to the container having such a configuration, when stacking a plurality of containers, the fitting part over the entire periphery of the surface peripheral part of the lid top wall of the stacked lower container, and the rear peripheral part of the bottom wall of the container body of the upper container The position where the lid of the lower container corresponds to the side wall of the front peripheral edge in the rear peripheral edge of the container main body bottom wall of the upper container from below to the height direction Since it supports reliably, a several container can be stacked very stably.

  In addition, the container according to the present invention can accommodate frozen goods.

  According to the container having such a configuration, a plurality of containers in which frozen goods are stored are generally transported or managed in a stacked manner. Therefore, the container according to the present invention contains frozen goods. In addition, since a plurality of containers can be stably stacked, frozen goods can be transported and managed efficiently.

  As described above, according to the container according to the present invention, the bottom wall of the upper container is supported with respect to the top wall of the lower container, and the centers of gravity of the upper and lower containers are not aligned with each other. There is an effect that a plurality of containers can be stably stacked for the purpose of management or the like.

The perspective view of the container concerning this embodiment is shown. (A) is a top view of the container main body of the container, (b) shows the bottom view of the container main body. (A) is a top view of the cover body of the container, (b) shows a bottom view of the cover body. (A) is the BB sectional view taken on the lid of Drawing 3 (a), and (b) shows the AA sectional view on the container main part of Drawing 2 (a). Sectional drawing of the state which accumulated the same container is shown.

  Hereinafter, an embodiment of a container according to the present invention will be described with reference to FIGS. 1 to 5. The container 1 of this embodiment is formed in the box shape which can accommodate goods (for example, frozen goods or frozen food) as a to-be-contained object.

  As shown in FIG. 1, the container 1 is made of a foamable synthetic resin container body 2 having an opening 2A at the upper end, and a foamable synthetic resin for closing the opening 2A of the container body 2 so as to be in a sealed state. And a lid 3 made of metal. The foamable synthetic resin is not particularly limited, and various foamable synthetic resins such as foamed polystyrene, foamed polyethylene, and foamed polypropylene can be used. Further, the short side direction of the container 1 is the left-right direction, and the long side direction of the container 1 is the front-rear direction (hereinafter, the left direction is shown as “left” and the right direction is shown as “right” in the figure, The forward direction is indicated by “front” and the backward direction is indicated by “rear”).

  The container body 2 is shown in FIGS. 2 and 4 (b). The container body 2 is erected from a polygonal or circular bottom wall 21 on which an object (or an object to be conveyed) is placed, and an upper (front side) peripheral edge of the bottom wall 21, and is arranged in a height direction. It comprises a frame-shaped main body side wall 2B whose end is an opening 2A of the container main body 2 (see FIGS. 1 and 2).

  Hereinafter, in the bottom wall 21, the upper surface is referred to as the front surface, and the lower surface is referred to as the back surface. The bottom wall 21 is formed in a flat plate shape that is substantially rectangular in plan view. The surface 21U of the bottom wall 21 corresponds to the bottom surface of the container body 2 and is a surface that supports the object to be accommodated.

  On the surface 21U of the bottom wall 21, a bottom wall reinforcing rib 21R is projected so that the center of gravity of the container body 2 is disposed on the central axis of the bottom wall 21 (see FIG. 2A). The reinforcing rib 21R is for reinforcing the bottom wall 21 and is, for example, a target in the front-rear direction and the left-right direction with respect to the center of the bottom wall 21 in a plan view (looking from the upper side in the height direction). The shape may be a cross shape, a band shape, or a ring shape, or a plurality of circles or polygons may be spaced apart in a grid pattern. In the present embodiment, the reinforcing rib 21R has a cross shape in which a band shape along the front-rear direction and a band shape along the left-right direction intersect at the center of the bottom wall 21 as shown in FIG. The reinforcing rib 21R divides the surface 21U of the bottom wall 21 into four sections. In each of the four sections, the frozen food accommodated in the container 1 can be placed. In other words, the reinforcing rib 21R can accommodate the contents (frozen food) accommodated in the container 1 in the container body. 2 is provided on the bottom wall surface 21U so as to be positioned in or on the bottom wall 21.

  Further, on the rear surface 21L of the bottom wall 21, a protruding portion 211 is projected in a central region side area excluding the peripheral portion 210 (edge region) having a rectangular frame shape (FIGS. 2B and 4B). )reference). The protrusion 211 has a substantially rectangular shape in which the length in the front-rear direction is longer than the length in the left-right direction when viewed from the bottom. The protrusion 211 protrudes downward from the back surface 21L, and the lower surface 211a is formed on a flat surface. Further, the side surface of the projecting portion 211 has a lower end portion integrally connected to the entire peripheral portion of the lower surface 211a. The upper end portion of the side surface of the protruding portion 211 is integrally connected to the entire inner peripheral portion of the peripheral edge portion 210 of the back surface 21L. And in the side surface of the protrusion part 211, a lower end part inclines outward and upwards from the lower surface 211a, and the upper end part is connected with the inner peripheral part of the back surface 21L (refer FIG.4 (b)). That is, the angle formed between the side surface of the protruding portion 211 and the lower surface 211a is configured to exceed 90 °. In other words, the protruding portion 211 is formed to have a truncated pyramid shape in which the protruding end side is narrowed (see FIG. 4B). The protruding portion 211 is not limited to a truncated pyramid shape, and can be configured to be a polygonal column shape having a substantially constant horizontal cross-sectional shape.

  By such a protruding portion 211, the peripheral edge portion 210 (the edge region of the rectangular frame shape) of the back surface 21L of the bottom wall 21 is configured to be relatively concave. That is, the peripheral portion 210 is a groove portion that is recessed over the entire periphery (that is, a rectangular frame shape) of the back surface peripheral portion of the bottom wall 21. The peripheral portion 210 is fitted so that it can be fitted into a fitting portion (reinforcing convex portion 39) described later in the lid 3 of the lower container when a plurality of container bodies 2 covered with the lid 3 are stacked. It is configured as a part.

  In addition, on the back surface 21L of the bottom wall 21, a band hooking portion 212 that can hang a band for integrating the container body 2 and the lid 3 is recessed forward and backward at each edge along the front-rear direction. (See FIG. 2B). On the back surface 21L of the bottom wall 21, a finger hooking portion 25 that can be hooked at the center portion (can also be banded) is recessed in both edge portions along the left-right direction (see FIG. 2B).

  The main body side wall 2B is raised upward from the peripheral edge portion of the surface 21U of the bottom wall 21, and is formed in a rectangular frame shape. The main body side wall 2B is composed of left and right side walls 22 and 22 and front and rear side walls 23 and 23 (see FIGS. 2A and 4B). The left and right side walls 22, 22 are raised upward from left and right edges that are a pair of long sides of the bottom wall 21, and face each other in the left-right direction. The front and rear side walls 23, 23 are raised upward from the front and rear edges, which are a pair of short sides of the bottom wall 21, and face each other in the front-rear direction. The main body side wall 2 </ b> B has a thick portion 24 that continues directly to the bottom wall 21, and a fitting protrusion (or fitting convex portion) 4 that is a thin portion disposed at the front end of the thick portion 24 in the height direction. And is integrally formed. The fitting ridge 4 is arranged on the upper end, which is the front end in the height direction of the thick portion 24 of the main body side wall 2B, over the entire circumference of the inner edge of the main body side wall 2B and protrudes along the vertical direction. (See FIGS. 2 (a) and 4 (b)).

  Note that the thickness of the thick portion 24 (thickness from the inner surface to the outer surface on one side wall of the main body side wall 2B) is larger than the thickness of the bottom wall 21 (thickness from the front surface 21U to the rear surface 21L). That is, when stacking a plurality of containers 1 containing the objects to be stored, the main body side wall 2B is configured to be thicker than the bottom wall 21 so that the upper container 1 can be properly supported.

  As shown in FIGS. 3 and 4A, the lid 3 is configured to be detachable from the container body 2. Specifically, the lid 3 includes a top wall 31 and a lid side wall 32. Hereinafter, in the top wall 31, the upper surface is referred to as the front surface, and the lower surface is referred to as the back surface. The top wall 31 is formed in a substantially rectangular shape (an example of a polygonal shape) in plan view, and the surface 31U is a flat surface. The back surface 31L of the top wall 31 is a flat surface parallel to the front surface 31U.

  The lid side wall 32 is integrally formed on the back surface 31L of the top wall 31 so as to extend downward from the peripheral edge portion of the back surface 31L of the top wall 31 of the lid body 3 (FIGS. 3B and 4A). )reference). In the central portion in the thickness direction of the lid side wall 32, a fitting recess 5 that is detachably fitted to the fitting protrusion 4 of the container body 2 is formed to be recessed upward. That is, the lid side wall 32 has a concave portion 5 for fitting, a protruding portion of a rectangular frame shape arranged outside the concave portion 5 for fitting, and a rectangular frame shape arranged inside the concave portion 5 for fitting. A ridge portion. Hereinafter, in the lid side wall 32, the fitting recess 5 is referred to as a fitting groove 5, and the rectangular frame-shaped protruding portion on the outside of the fitting groove 5 is referred to as an outer wall portion 33. On the other hand, the protruding portion of the rectangular frame shape on the inner side is referred to as an inner wall portion 34 (see FIGS. 3B and 4A).

  The outer wall portion 33 is composed of left and right outer wall portions 35 and 35 and front and rear outer wall portions 36 and 36 (see FIG. 3B). The left and right outer wall portions 35, 35 are formed so as to extend downward from the left and right edge portions of the back surface 31 </ b> L of the top wall 31, and the front and rear outer wall portions 36, 36 are formed before and after the back surface 31 </ b> L of the top wall 31. It is formed to extend downward from the edge. The lower end surfaces of the left and right outer wall portions 35, 35 and the front and rear outer wall portions 36, 36 are flush with each other, and the height of the outer wall portion 33 is set to the same height from the rear surface 31L of the top wall 31. .

  The inner wall portion 34 is formed along the outer wall portion 33 on the back surface 31 </ b> L of the top wall 31 by a predetermined distance (a distance corresponding to the width of the fitting groove 5) from the outer wall portion 33. (See FIG. 3B). The inner wall portion 34 includes front and rear inner wall portions 37 and 37 that face each other in the front and rear direction, and left and right inner wall portions 38 and 38 that face each other in the left and right direction. That is, the inner wall portion 34 is formed in a rectangular frame shape that protrudes downward from the back surface 31 </ b> L of the top wall 31.

  The fitting groove 5 is a recess that is detachably fitted to the fitting protrusion 4 of the container body 2 (see FIGS. 3B and 4). The fitting groove 5 has a concave shape and is formed along the entire circumference of the lid side wall 32. The groove height in the fitting groove 5 is the same as or substantially the same as the height in the fitting protrusion 4. Further, the groove width in the fitting groove 5 is configured to be the same or substantially the same as the width in the fitting protrusion 4. In the container 1, the fitting ridge 4 and the fitting groove 5 are sealed by fitting the fitting groove 5 and the fitting ridge 4 (the container body 2 and the lid 3 are sealed). Thus, the opening 2 </ b> A of the container main body 2 is configured to be covered with the lid 3. That is, the fitting groove 5 is formed at a position facing the fitting protrusion 4 on the main body side wall 2B in a state where the opening 2A of the container main body 2 is closed at the peripheral edge of the back surface of the lid 3 (top wall 31). It is configured to be.

  Moreover, the cover body 3 is provided with the convex part 39 for a reinforcement in the peripheral part (specifically edge of a rectangular frame shape) in the surface 31U of the top wall 31 (refer Fig.3 (a)). The reinforcing convex portion 39 is configured such that a plurality of convex portions are spaced apart from each other in the rectangular circumferential direction of the top wall 31. Each reinforcing convex portion 39 is formed integrally with the top wall 31 so as to protrude from the surface 31U, and has a width substantially equal to the radial direction (direction intersecting the circumferential direction). Moreover, the upper surface of each reinforcement convex part 39 is a flat surface, and is set to the same height from the surface 31U. The height of the reinforcing convex portion 39 is configured to be equal to the height of the protruding portion 211 of the bottom wall 21.

  Specifically, each reinforcing convex portion 39 includes a corner convex portion formed by continuing a long portion along the front-rear direction and a short portion along the left-right direction at each corner (corner portion) of the surface 31U. The central portion of the edge portion along the front-rear direction of the surface 31U has a side convex portion along the front-rear direction, and the corner convex portion and the side convex portion are separated from each other. Of the region where the reinforcing convex portions 39 are separated from each other (the edge region where the reinforcing convex portion 39 does not exist in the peripheral portion of the surface 31U), the front of the edge along the front-rear direction of the surface 31U of the wall 31 and The rear separation region is a band hanging portion 39a for hanging a band for integrating the container body 2 and the lid 3 in the short direction of the container 1 (FIGS. 3A and 4A). )reference). On the other hand, the separation region at the center of the edge portion along the left-right direction of the surface 31U is a finger-hanging portion 39b that can be hooked (can also be banded) (see FIG. 3A).

  Such a reinforcing convex portion 39 is a convex portion that is provided over the entire periphery (that is, rectangular frame shape) of the surface peripheral portion of the top wall 31, and a plurality of container main bodies 2 that are covered with the lid 3 are provided. It is comprised as a fitting part which can be fitted to the to-be-fitted part of the bottom wall 21 in the container main body 2 of the upper container when stacked. The reinforcing convex portion 39 is formed at the peripheral edge of the top wall 31 when a plurality of container main bodies 2 covered with the lid 3 are stacked. It is formed at a position facing the peripheral edge 210). In addition, although the convex part 39 for reinforcement of this embodiment is intermittently provided over the perimeter of the surface peripheral part of the top wall 31, it is continuously provided over the perimeter of the surface peripheral part of the top wall 31. A possible configuration is also possible.

  In addition, on the rear surface 31L of the top wall 31, the top wall reinforcing rib 31R is arranged such that the center of gravity of the lid 3 when the container body 2 is covered with the lid 3 is arranged on the central axis of the bottom wall 21. Is protruded (see FIG. 3B). The top wall reinforcing rib 31R is for reinforcing the lid 3, and is configured in the same manner as the bottom wall reinforcing rib 21R. In other words, the top wall reinforcing rib 31R is, for example, a cross shape or a band shape as a target shape in the front-rear direction and the left-right direction with respect to the center of the top wall 31 when viewed from the bottom (when viewed from above in the height direction). It may be configured in an annular shape, or may be configured by arranging a plurality of circular or polygonal shapes spaced apart in a grid pattern. In the present embodiment, as shown in FIG. 3B, the top wall reinforcing rib 31 </ b> R has a cross shape in which a band shape along the front-rear direction and a band shape along the left-right direction intersect at the center of the top wall 31. The top wall reinforcing rib 31R divides the back surface 31L of the top wall 31 into four sections. The top wall reinforcing rib 31R is provided on the rear surface 31L closer to the center than the inner wall 34, and faces the bottom wall reinforcing rib 21R of the bottom wall 21 when the container body 2 is covered with the lid 3. Is provided. That is, the top wall reinforcing ribs 31 </ b> R are provided on the top wall rear surface 31 </ b> L so as to position an object (frozen food) accommodated in the container 1 in the container body 2 or the top wall 31.

  The thickness of the top wall 31 (thickness from the front surface 31U to the back surface 31L) is larger than the thickness of the lid side wall 32 (thickness from the inner surface to the outer surface of one side wall of the lid side wall 32) and the thickness of the bottom wall 21. Thinly formed. That is, the bottom wall 21 is thicker than the top wall 31 so that a predetermined weight of an object to be accommodated in the container 1 is appropriately placed. In other words, the top wall 31 has a relatively small load compared to the bottom wall 21 and the main body side wall 2B when stacking a plurality of containers 1 containing the objects to be stored. The thickness is made thinner than.

  In the container 1 configured as described above, when a frozen product (specifically, a frozen food packaged on a food tray) is stored as an object to be stored, the surface 1U of the bottom wall 21 of the container body 2 is stored. Thus, the frozen product is placed in each divided region divided by the bottom wall reinforcing rib 21R. In the present embodiment, frozen foods are stacked and placed in a plurality of stages (for example, two stages) in each of the four divided regions of the surface 21U divided by the bottom wall reinforcing ribs 21R. That is, each of the plurality of frozen foods is arranged (that is, positioned) in the container body 2 or on the bottom wall 21 by being divided by the bottom wall reinforcing ribs 21R.

  And the cover body 3 is attached to the container main body 2 so that the opening part 2A of the container main body 2 may be obstruct | occluded. At this time, the fitting groove 5 of the lid body 3 and the fitting protrusion 4 of the container body 2 are fitted to be uneven. By this fitting, a sealed container 1 is formed. In addition, the frozen food is arranged (ie, positioned) in the container body 2 by being divided by the bottom wall reinforcing rib 21R of the bottom wall 21 and the ceiling wall reinforcing rib 31R of the top wall 31.

  The containers 1 thus sealed are stacked in a plurality of stages for the purpose of transportation and storage. When stacking the containers 1 in a plurality of stages, the bottom wall 21 of the container body 2 in the upper container 1 with respect to the fitting part (reinforcing convex part 39) of the top wall 31 of the lid 3 in the lower container 1. Are fitted in the height direction of the body side wall 2B. At this time, the protruding portion 211 of the bottom wall 21 of the container body 2 in the upper container 1 is disposed in the inner region defined by the reinforcing convex portion 39 of the top wall 31. That is, the reinforcing convex portion 39 of the lower top wall 31 restricts the movement of the protruding portion 211 of the upper bottom wall 21 in the horizontal direction. In other words, the lower container 1 (lid body 3) supports the upper container 1 (container body 2) and restricts movement (or positioning). Therefore, the movement of the upper container 1 in the horizontal direction is restricted, and the upper container 1 is stacked while being stably held in the horizontal direction with respect to the lower container 1.

  Here, in this embodiment, the flat lower surface 211a of the protrusion 211 of the upper container 1 abuts on the flat surface 31U of the lid 3 (the top wall 31) of the lower container 1. Therefore, the upper container 1 is restricted from moving in the horizontal direction relative to the lower container 1 by the frictional force generated by the contact between the lower surface 211a of the protruding portion 211 and the surface 31U of the top wall 31, and is extremely stable in the horizontal direction. Held

  Further, by forming the bottom wall 21 of the container main body 2 thinner than the thickness of the main body side wall 2B and forming the top wall 31 of the lid 3 thinner than the thickness of the bottom wall 21, the weight of the container 1 is reduced. Since the center of gravity of the container main body 2 and the lid 3 is aligned with the center axis of the bottom wall 21 by the bottom wall reinforcing rib 21R of the wall 21 and the top wall reinforcing rib 31R of the top wall 31, the upper stage These containers 1 are stacked in a state where they are held stably and hardly shake with respect to the lower container 1.

  As described above, according to the container 1 according to the present embodiment, the container body 2 and the lid body 3 made of the foamable synthetic resin are provided, and the container body 2 includes the plate-like bottom wall 21 and the front side peripheral edge portion of the bottom wall 21. The bottom wall 21 is formed to be thinner than the thickness of the main body side wall 2B, and the bottom wall 21 is formed to be thinner than the main body side wall 2B. The bottom wall reinforcing rib 21R is formed so that the center of gravity of the container body 2 is disposed on the central axis of the bottom wall 21, and the lid 3 is an opening of the container body 2 to cover the container body 2. 2A, the ceiling wall 31 is formed thinner than the thickness of the bottom wall 21. The ceiling wall 31 has a lid 3 when the container body 2 is covered with the lid 3. The top wall reinforcing rib 31R is formed so that the center of gravity is disposed on the central axis of the bottom wall 21, and a plurality of container bodies 2 covered with the lid 3 are stacked. In this case, the lower lid 3 and the upper container body 2 are configured to be fitted in the height direction of the main body side wall 2B by the convex fitting portion 39 and the concave fitting portion 210. The fitting part 39 is formed at a position corresponding to the main body side wall 2B of the front side peripheral part at the back side peripheral part of the bottom wall 21, and the mated part 210 is formed at the upper peripheral part of the top wall 31 at the surface peripheral part. The container main body 2 is formed at a position facing the fitting portion 39 of the bottom wall 21.

  According to the container 1 having such a configuration, (a) the bottom wall 21 is thinner than the main body side wall 2B, and the top wall 31 is thinner than the bottom wall 21, thereby reducing the weight of the container. b) When stacking a plurality of containers 1, the lid 3 of the stacked lower container 1 is engaged with the fitting part 39 and the fitted part 210 so that the back side of the bottom wall 21 of the container body 2 of the upper container 1 A position corresponding to the main body side wall 2B of the front side peripheral edge portion is supported in the height direction from below in the peripheral edge portion, and (c) the center of gravity of the container main body 2 and the lid body 3 are respectively used for the bottom wall reinforcing rib 21R and the top wall reinforcing member. Since the rib 31R is disposed on the central axis of the bottom wall 21, the bottom wall 21 of the upper container 1 is supported by the top wall 31 of the lower container 1, and the centers of gravity of the upper and lower containers 1 coincide with each other. Since it is difficult to tumble, multiple containers 1 can be stably stacked for transportation and management purposes. Rukoto can. Furthermore, in such a container 1, the strength of the container body 2 and the lid 3 can be secured by the bottom wall reinforcing rib 21R and the top wall reinforcing rib 31R while reducing the weight as described above.

  Further, in the container 1 of the present embodiment, the fitting portion 39 is provided so as to protrude over the entire circumference of the front surface peripheral portion of the top wall 31, and the fitted portion 210 is provided on the rear peripheral edge of the bottom wall 21. It is configured to be recessed over the entire circumference of the part.

  According to the container 1 having such a configuration, when a plurality of containers 1 are stacked, the fitting portion 39 extending over the entire circumference of the surface peripheral edge of the lid top wall 31 of the stacked lower container 1 and the container body of the upper container 1 The fitted part 210 over the entire circumference of the back side peripheral part of the bottom wall 21 is fitted, and the lid 3 of the lower container 1 is placed on the front side peripheral part of the back side peripheral part of the container body bottom wall 21 of the upper container 1. Since the position corresponding to the main body side wall 2B is reliably supported in the height direction from below, the plurality of containers 1 can be stacked extremely stably.

  Moreover, the container 1 of this embodiment is comprised so that frozen goods may be accommodated.

  According to the container 1 having such a configuration, since a plurality of containers in which frozen products are stored are generally transported or managed in a stacked manner, the container 1 according to the present embodiment includes a frozen product. Since the accommodated containers 1 can be stably stacked, frozen goods can be transported and managed efficiently.

  In addition, according to the container 1 according to the present embodiment, the protruding portion 211 is configured in a truncated pyramid shape in which the protruding end side is narrowed. Therefore, when the plurality of containers 1 are stacked or unloaded, the upper container 1 The lower surface 211a or the side surface of the protruding portion 211 of the bottom wall 21 can be smoothly slid to the upper surface or the inner side surface of the reinforcing convex portion 39 on the top wall 31 of the lower container 1 to improve work efficiency. Can do.

  In addition, the container 1 which concerns on this invention is not limited to the said embodiment, A various change is possible in the range which does not deviate from the summary of this invention.

  In the above-described embodiment, the case has been described in which the frozen goods are stored in the container 1, but the present invention is not limited thereto, and fresh food or the like can also be stored in the container 1.

  Moreover, in the said embodiment, when the fitting part (reinforcement convex part 39) is provided in the top wall 31 of the cover body 3, and the to-be-fitted part (periphery part 210) is provided in the bottom wall 21 of the container main body 2. FIG. However, the present invention is not limited thereto, and the top wall 31 of the lid body 3 is provided with a concave portion as a fitted portion, and the bottom wall 21 of the container body 2 is provided with a convex portion as a fitting portion. When the plurality of container bodies 2 covered with 3 are stacked, the lower lid body 3 and the upper container body 2 are arranged in the height direction of the main body side wall 2B by the convex fitting portion and the concave fitting portion. It is also possible to be configured to be fitted with. In this case, the fitting part is formed at a position corresponding to the main body side wall 2B of the front side peripheral part at the back side peripheral part of the bottom wall 21, and the fitted part is the upper stage of the stacking at the surface peripheral part of the top wall 31. The container body 2 is formed at a position facing the fitting portion of the bottom wall 21.

  In the lid body 3 of the above embodiment, the height of the reinforcing convex portion 39 is described as being equal to the height of the protruding portion 211 of the bottom wall 21, but this is not limiting, and the height of the reinforcing convex portion 39 is not limited thereto. The height may be slightly higher than the height of the protruding portion 211. In this case, when the containers 1 are stacked in a plurality of stages, the lower surface 211a of the protruding portion 211 of the upper container 1 does not come into contact with the surface 31U of the lid 3 (the top wall 31) of the lower container 1. Even if the lower surface 211a of the container 1 is dirty, the lower container 1 is not stained.

  Moreover, although the said embodiment demonstrated the case where the convex protrusion 4 for fitting was provided in the container main body 2, and the groove | channel 5 for fitting was provided in the cover body 3, it is not restricted to this, For concave fitting for the container main body 2 A recess is provided, and a convex fitting ridge is provided on the lid 3 so that the lid 3 closes the opening 2A of the container body 2 by fitting the fitting concave and the fitting ridge. It can also be configured.

  Moreover, in the said embodiment, although the cover body 3 demonstrated the case where it was provided with the top wall 31 and the cover body side wall 32, not only this but the cover body 3 is comprised only with the top wall 31. It is also possible. In this case, the back surface 31L of the top wall 31 of the lid 3 is a top wall fitting portion that fits into the fitting convex strip 4 or the fitting concave portion on the main body side wall 2B of the container main body 2, and is a fitting convex strip. 4 is formed, or a top wall fitting portion is formed in a concave shape that fits into the fitting recess, and the top wall fitting portion is formed at the rear peripheral edge of the top wall 31 of the container body 2. In a state where the opening 2A is closed, the main body side wall 2B can be recessed or protruded at a position facing the fitting protrusion 4 or the fitting recess.

  DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Container main body, 2A ... Opening part, 2B ... Main body side wall, 3 ... Cover body, 4 ... Convex protrusion (fitting convex part), 5 ··· fitting recess (fitting groove), 21 ··· bottom wall, 21L ··· back surface, 21U ··· surface, 21R ··· ribs for reinforcing the bottom wall, 22 · · · left and right side walls, ..Front and rear side walls, 24 ... thick portion, 31 ... top wall, 31L ... back surface, 31U ... front surface, 31R ... ribs for reinforcing the top wall, 32 ... side walls of the lid, 33 ... Outer wall part, 34 ... Inner wall part, 39 ... Reinforcing convex part (fitting part), 210 ... Peripheral part (fitted part), 211 ... Projection part

Claims (3)

A container body made of an expandable synthetic resin and a lid, the container body having a plate-like bottom wall and a frame standing on the front peripheral edge of the bottom wall and having an end in the height direction as an opening of the container body e Bei and Jo sidewall, the bottom wall, the bottom wall reinforcing ribs so that the center of gravity of the container body is arranged on the central axis of the bottom wall is formed,
Lid body, e Bei a top wall for closing the opening of the container body so as to cap the container body, the top wall, the central center of gravity of the lid when the lid in the lid to the container body of the bottom wall A rib for reinforcing the top wall is formed so as to be arranged on the shaft,
When multiple container bodies covered with a lid are stacked, the lower lid and the upper container body are fitted to each other in the height direction of the side wall by a convex fitting part and a concave fitting part. One of the fitting part and the fitted part is formed at a position corresponding to the side wall of the front side peripheral part in the back side peripheral part of the bottom wall,
Position where the other of the fitting part and the fitted part opposes one of the fitting part of the bottom wall and the fitted part in the upper container body of the stack in the surface peripheral edge of the top wall It is formed on,
The thickness of the bottom wall is formed thinner than the side wall thickness including the bottom wall reinforcing rib, and the thickness of the top wall is formed thinner than the thickness of the bottom wall including the top wall reinforcing rib. Container to be used. The fitting portion is provided so as to protrude over the entire circumference of the surface peripheral portion of the top wall,
The container according to claim 1, wherein the fitted portion is recessed over the entire periphery of the rear peripheral edge of the bottom wall. The container according to claim 1 or 2, wherein a frozen product is accommodated.

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