JP6134165B2 - container - Google Patents

Description

  The present invention relates to a container composed of a container main body and a lid formed of a foamable synthetic resin.

  Conventionally, a container composed of a container body and a lid formed of a foamable synthetic resin has been widely used. Some of these containers are used repeatedly as “return boxes”. Examples of the object to be stored in the container used as the “return box” include an individual container containing cooked rice and a lunch box that are transported from the school lunch center to the school. In many cases, the container used as the “return box” is formed with a gripping portion that can be hung with a finger by a cargo handler or the like in order to facilitate transport of the container.

  Here, the container which accommodates the to-be-conveyed object may become a heavy weight. For this reason, when used as a “carrying box”, a large load is applied to the gripping part, and the gripping part may be damaged in a short time.

  With respect to this problem, in the inventions described in Patent Documents 1 and 2, a reinforcing material made of non-foamed synthetic resin is attached to the gripping portion, thereby strengthening the gripping portion and making it difficult to break.

JP-A-2005-206210 JP 2006-168744 A

  However, in the configuration of each of the above documents, it is necessary to attach another member for reinforcing the grip portion to the container. For this reason, it becomes a factor which raises the manufacturing cost of a container and is a problem.

  Needless to say, it is preferable to make the container easy to hold in order to reduce the burden placed on the cargo handler or the like when the weight of the stored transported object is large.

  Therefore, in view of the above-described problems and the like, it is an object of the present invention to provide a container that can reinforce a gripping portion while having a simple structure and is easy for a cargo handler or the like to hold.

The present invention includes a container body and a lid made of a foamable synthetic resin, and the container body is erected on the polygonal bottom wall and the outer peripheral edge on the front side of the bottom wall, and the height direction end portion of the container body is A frame-shaped main body side wall as an opening, the container main body is provided with a fitting convex portion formed over the entire circumference of the height direction end of the main body side wall, and the lid body is provided on the entire back side. A container main body having a fitting concave portion formed at a position corresponding to the fitting convex portion, wherein the fitting convex portion and the fitting concave portion are detachably fitted to each other in the height direction. The container body and the lid body, the container body and the lid body further comprising a gripping portion projecting outward from the outer surface of the side wall corresponding to the two opposite sides of the polygon, the container body side Either the outer edge part of the grip part of the container or the outer edge part of the grip part on the lid side is provided with the container. Recess fingertip enters such cargo's are formed to lift the lid attached to the body, the grip portion of the grip portion and the cover side of the container body, the lid is attached to the container body In the combined state, the grip portion on the lid body side is the grip portion on the container body side except for the concave portion into which the fingertip of a cargo operator or the like enters when lifting the lid body in the combined state. A finger other than the thumb of a cargo handler etc. is hung on the lower part of the grip part on the container body side, and the thumb of the cargo handler etc. is hung on the upper part of the grip part on the lid side. Among the fitting convex portions, the fitting convex portion provided at a position along the holding portion on the container body side in a plan view has a width direction dimension larger than the fitting convex portion provided at another position. A large container.

In the above configuration, the gripping part protrudes outward from the side wall corresponding to the two opposite sides of the polygon, and the gripping part on the container body side is configured to be able to hang a finger other than the thumb of a cargo handler, etc. The grip part on the lid side is configured such that a thumb of a cargo handler or the like can be hung. For this reason, the side wall is reinforced by the gripping portion protruding outward. Moreover, even when the weight of the object to be conveyed is large, the cargo handler or the like can stably lift the container. Furthermore, the bending strength of the gripping part on the container body side can be improved by the large dimension in the width direction of the fitting convex part provided at the position along the gripping part.

  Further, the container body side grip portion and the lid body side grip portion are disposed on the outer surface of the side wall corresponding to the two opposite sides of the polygon in the container body and the cover body over the entire length in the width direction of the outer surface. Can be formed.

  The said structure WHEREIN: Since a holding | grip part is formed over the width direction full length of the outer surface of the side wall corresponding to two sides which a polygon opposes, the thickness of a side wall can be enlarged over the said width direction full length. Thereby, the strength of the side wall is ensured, and deformation of the container when the loader or the like lifts the container in which a heavy object is stored can be suppressed.

  In addition, the lower portion of the main body side wall may be thicker than the upper portion.

  In the above-described configuration, the lower portion of the main body side wall is thicker than the upper portion, whereby the lower portion of the container main body, in which the weight of the object to be conveyed is particularly heavy, is reinforced.

  The expandable synthetic resin is expanded polystyrene, and at least the expansion ratio of the expanded synthetic resin particles constituting the container body can be 30 times or less.

  In the above configuration, when the foaming ratio of the foamed synthetic resin particles is 30 times or less, at least the container main body can be made entirely hard and strong.

  In the container of the present invention, the side wall is reinforced by the gripping portion protruding outward. Moreover, even when the weight of the object to be conveyed is large, the cargo handler or the like can stably lift the container. For this reason, although the container of the present invention has a simple structure, the gripping portion is reinforced, and it is easy for a cargo handler or the like to hold.

It is a disassembled perspective view of the container showing one Embodiment of this invention. It is a longitudinal cross-sectional view in the AA arrow direction of FIG. 1 of the state which isolate | separated the container main body and the cover body of the container. It is the principal part longitudinal cross-sectional view in the BB arrow direction of FIG. 1 of the state which isolate | separated the container main body and the cover body of the container.

  Hereinafter, an embodiment of a container according to the present invention will be described with reference to the drawings. Examples of the objects to be conveyed stored in the container 1 of the present embodiment include an individual container containing cooked rice and a lunch box that are conveyed from a school lunch center to a school.

  As shown in FIG. 1 and FIG. 2, the container 1 has a container body 3 made of a foamable synthetic resin having an opening 2 a at the upper end, and the inside of the container body 3 is almost sealed by closing the opening 2 a of the container body 3. And a lid 4 made of an expandable synthetic resin for making the state. The foaming synthetic resin is not particularly limited, and various foaming synthetic resins such as foamed polystyrene, foamed polyethylene, and foamed polypropylene can be used. Moreover, the following description makes the short side direction of the container 1 the left-right direction, and makes the long side direction of the container 1 the front-back direction. The vertical direction is based on the illustrated state.

  As the foamable synthetic resin of this embodiment, expanded polystyrene is used. In particular, the container 1 of the present embodiment may contain a heat-resistant resin because an individual container containing freshly cooked hot rice may be stored. The expansion ratio is 30 times or less. With this expansion ratio, a structure made of expanded polystyrene after molding can be made hard and durable. For this reason, in particular, with respect to the container main body 3 in which the object to be conveyed is stored, the occurrence of bending or the like can be suppressed even when the object to be conveyed is heavy.

  The container body 3 includes a bottom wall 30 and a body side wall 31 that are symmetrical in the left-right direction and the front-rear direction. Hereinafter, in the bottom wall 30, the upper surface is referred to as the front surface, and the lower surface is referred to as the back surface. The bottom wall 30 is formed in a substantially rectangular flat plate shape in plan view having rounded corners. Note that it may be a polygon other than a rectangle (specifically, a polygon having two opposite sides). The surface 30c of the bottom wall 30 corresponds to the bottom surface of the container body 3 and is a surface that supports the object to be conveyed. The surface 30c of the bottom wall 30 is a flat surface.

  A rounded portion 3 a is formed between the outer peripheral region on the back surface 30 d of the bottom wall 30 and the lower region on the outer surface of the main body side wall 31. Thus, since the rounded portion 3a exists at the corner of the container body 3, even when the containers 1 collide with each other during the cargo handling operation, the container body 3 is unlikely to be damaged, and the container 1 can be made to last for a long time. The container 1 can be suitably used as a “return box”.

  On the back surface 30d of the bottom wall 30, a protruding portion 30b that protrudes further downward from the back surface 30d is formed. The protrusion 30b has a substantially rectangular frame shape when viewed from the bottom. The projecting portion 30 b is formed integrally with the back surface 30 d of the bottom wall 30. Further, the lower surface 300b of the protruding portion 30b is a flat surface. And the inner peripheral area | region 30a enclosed by this protrusion part 30b is a flat surface dented in the surface side.

  The main body side wall 31 is formed in a substantially rectangular frame shape by being raised upward from the outer peripheral edge portion of the surface 30 c of the bottom wall 30. The main body side wall 31 includes left and right side walls 310 and 310 and front and rear side walls 320 and 320. The left and right side walls 310, 310 are raised upward from left and right edges that are a pair of long sides of the bottom wall 30, and face each other in the left-right direction. The front and rear side walls 320, 320 are raised upward from the front and rear edges, which are a pair of short sides of the bottom wall 30, and face each other in the front-rear direction. The main body side wall 31 forms a substantially rectangular parallelepiped space in which the upper end surface, which is the end in the height direction of the main body side wall 31, coincides with the opening 2a. Further, the fitting convex portion 5 is formed over the entire circumference of the end portion in the height direction of the main body side wall 31.

  The main body side wall 31 (the left and right side walls 310, 310 and the front and rear side walls 320, 320) is integrally formed by a thin main body side wall upper part 311 and a thick main body side wall lower part 312. There is a step 313. With this configuration, the thickness of the lower portion of the main body side wall 31 can be increased by the main body side wall lower portion 312 that circulates over the entire circumference. Etc. can be suppressed.

  In addition, when storing a container having a bowl-shaped protruding portion such as a pot rice container as an object to be conveyed, the protruding portion is positioned above the step 313 so that the inner surface of the main body side wall 31 is placed. The pot rice container or the like can be stored in the container 1 without interference of the pot rice container or the like.

  On the front and rear side outer surfaces (hereinafter simply referred to as outer surfaces) of the front and rear side walls 320, 320, a main body side holding portion 32 for holding a container 1 with a finger by a loader or the like is formed. In addition, when the container main body 3 is polygons other than a rectangle, the main body side holding part 32 is formed in the side wall corresponding to the two sides which the said polygon opposes.

  The main body side gripping portion 32 is formed such that the upper part of the front and rear side walls 320 and 320 protrudes further outward than the outer surface of the side wall over the entire length in the width direction (left and right direction) of the front and rear side walls 320 and 320. A finger (specifically, a finger other than the thumb) of a cargo handler or the like is hung on the lower part. In the present embodiment, the projecting dimension of the main body side gripping part 32 from the outer surface of the front and rear side walls 320, 320 is formed from 20 mm to 40 mm, and the main body side gripping part 32 is formed from 25 mm to 50 mm in height. Since the main body side gripping portion 32 protrudes outward from the outer surfaces of the front and rear side walls 320, 320, the thickness of the front and rear side walls 320, 320 is increased by the amount of the main body side gripping portion 32. For this reason, the strength of the front and rear side walls 320, 320 is ensured. Further, since the main body side gripping portion 32 has the above dimensions, the main body side gripping portion 32 and the main body side gripping portion 32 are combined in the height direction when the lid body 4 is mounted on the container main body 3. It is possible to simultaneously put a finger of a cargo operator or the like on the lid side gripping portion 42 (described later). Therefore, even if a heavy object is stored in the container 1, the cargo operator or the like can lift the container 1 stably by attaching the fingers of the cargo operator or the like to the grip portions 32 and 42 from above and below. .

  In the present embodiment, in order to make it easier for a cargo handling person or the like to place a finger, as shown in FIG. 2, as shown in FIG. 2, the finger hook is placed on the lower surface at a position adjacent to the outer surface of the front and rear side walls 320, 320 A recess 34 is formed. Since the finger-hanging recess 34 makes it easy to hook a finger on the main body side gripping portion 32, the protrusion dimension of the main body side gripping portion 32 from the front and rear side walls 320, 320 is larger than when the lower surface of the main body side gripping portion 32 is a flat surface. Can be reduced.

  The outer surfaces of the left and right side walls 310, 310 are formed as inclined surfaces that are inward as the lower side (closer to the surface 30 c side of the bottom wall 30). In addition, inner surfaces in the thickness direction (hereinafter simply referred to as inner surfaces) of the left and right side walls 310, 310 are formed as inclined surfaces that are inward as the lower side. Such an inclined surface is obtained by the draft of the production mold, and is formed by being inclined by the production mold in order to ensure the releasability of the container body 3 with respect to the production mold. The same applies to the front and rear side walls 320, 320. In addition, since the inclination angle of the inclined surface on the outer surface of each side wall 310, 320 and the inclined surface on the inner surface of the side wall main body upper portion 311 of each side wall 310, 320 is set to 1 °, it is difficult to grasp on the drawing. . In addition, the inclination angle of the inclined surface on the inner surface of the side wall main body lower part 312 among the side walls 310 and 320 is formed larger than the other surfaces of the side walls 310 and 320 (surfaces obtained by the draft angle of the manufacturing mold). Yes.

  A lid opening recess 33 is formed on the outer edge of the surface of the main body side grip 32. As shown in the drawing, the lid opening recess 33 has a slope that faces obliquely outward, and is formed on the back side of the lid side gripping portion 42 of the lid body 4 attached to the container body 3. This is a portion where the fingertip enters when the lid 4 is lifted with respect to the container main body 3 by placing a finger on 43. In addition, only one of the opening recess 33 in the container body 3 and the gripping recess 43 in the lid 4 may be formed.

  The fitting convex portion 5 is formed one step higher from the upper end surface 31a, which is a horizontal surface located at the height direction end of the main body side wall 31, over the entire circumference of the inner edge of the main body side wall 31. A side wall 51 that is a substantially vertical surface facing and a top surface 52 that is a horizontal surface are provided. The widthwise dimensions of the fitting convex portions 5 and 5 on the front and rear side walls 320 and 320 are the same, and the thickness is 5a. Similarly, the width-direction dimensions of the fitting convex portions 5 and 5 on the left and right side walls 310 and 310 are the same, and the thickness is 5b. In addition, although this convex part 5 for fitting is formed in the inner edge part of the main body side wall 31 in this embodiment, the formation position of the convex part 5 for fitting in this invention is not limited to this, For example, the main body side wall 31 It may be formed in the center in the width direction.

  In this fitting convex portion 5, the thickness 5a of the fitting convex portion 5 on the front and rear side walls 320, 320 (see FIGS. 1 and 2) is the same as the thickness 5b of the fitting convex portion 5 on the left and right side walls 310, 310 (see FIG. 1, see FIG. 3). That is, the fitting convex portion 5 provided at the position along the main body side gripping portion 32 has a larger dimension in the width direction than the fitting convex portion 5 provided at another position. For this reason, the bending strength of the main body side holding part 32 can be improved by reinforcing the upper part of the main body side holding part 32 by the fitting convex part 5 having a large width direction dimension.

  The lid 4 includes a top wall 40 and a lid side wall 41 that are symmetrical in the left-right direction and the front-rear direction. Hereinafter, in the top wall 40, the upper surface is referred to as the front surface, and the lower surface is referred to as the back surface. The top wall 40 is formed in a substantially rectangular flat plate shape in plan view having rounded corners. Note that it may be a polygon other than a rectangle (specifically, a polygon having two opposite sides). The surface 40a of the top wall 40 is a flat surface. The back surface 40b of the top wall 40 is a flat surface parallel to the front surface 40a.

  The lid side wall 41 is formed in a substantially rectangular frame shape by being hung downward from the outer peripheral edge portion of the back surface 40 b of the top wall 40. The lid side wall 41 includes left and right side walls 410 and 410 and front and rear side walls 420 and 420. The left and right side walls 410, 410 are suspended downward from left and right edge portions that are a pair of long sides of the top wall 40, and face each other in the left-right direction. The front and rear side walls 420, 420 hang downward from the front and rear edges, which are a pair of short sides of the top wall 40, and face each other in the front-rear direction.

  The lid side wall 41 is directly connected to the top wall 40. The lid side wall 41 (the left and right side walls 410 and 410 and the front and rear side walls 420 and 420) includes a fitting recess 6.

  The lid side on which the container 1 can be lifted stably by bringing a thumb into contact with the outer surface of the front and rear side walls 420, 420 (hereinafter simply referred to as the outer surface) with the thumb of the cargo handler or the user of the container 1. A grip portion 42 is formed. In addition, when the cover body 4 is a polygon other than a rectangle, the cover body side holding part 42 is formed in the side wall corresponding to the two opposite sides of the polygon.

  The lid side gripping portion 42 is formed such that the lower part of the front and rear side walls 420 and 420 protrudes outward from the side wall over the entire length in the width direction (left and right direction) of the front and rear side walls 420 and 420. A finger (specifically, a thumb) of a cargo handler or the like comes into contact with the upper surface 42a (specifically, in this embodiment). In the present embodiment, in the lid-side gripping portion 42, the protruding dimension from the outer surface of the front and rear side walls 320, 320 of the container body 3 with the lid body 4 attached to the container body 3 is formed to be 20 mm to 40 mm. The body side grip 42 is formed with a height of 20 mm to 45 mm. As can be understood by comparing FIG. 3 and FIG. 2, the lid gripping portion 42 protrudes outward from the front and rear side walls 420, 420, so that the thickness of the front and rear side walls 420, 420 is the same as that of the lid gripping portion 42. Larger than the side walls 410, 410. For this reason, the strength of the front and rear side walls 420, 420 is ensured. Further, since the lid side gripping portion 42 has the above dimensions, a finger of a cargo operator or the like is placed on the main body side gripping portion 32 and the lid side gripping portion 42 when the lid body 4 is attached to the container main body 3. Can be hung at the same time.

  Further, since the lid side gripping portion 42 is combined with the main body side gripping portion 32 in the height direction when the lid body 4 is attached to the container main body 3, the lid side gripping portion 42 abuts along the main body side gripping portion 32. At this time, the cargo handler or the like grips the grip portions 32 and 42 at the same time, so that the finger of the cargo handler or the like presses the main body side grip portion 32 upward and simultaneously presses the lid side grip portion 42 downward. . As a result, the gripping portions 32 and 42 are brought into close contact with each other, so that the lid-side gripping portion 42 reinforces the main body side gripping portion 32 and the bending strength in the combined state of the gripping portions 32 and 42 can be improved.

  The grip recess 43 is a recess formed in the outer edge of the back surface of the lid-side grip 42. The gripping concave portion 43 is a portion where a finger can be hooked by a cargo operator or the like when a finger is put on the lid body 4 attached to the container body 3 and the lid body 4 is lifted with respect to the container body 3. The holding recess 43 has a width (left and right) dimension equal to that of the lid opening recess 33, and as shown in FIG. 2, the back side corner of the lid side gripping portion 42 is cut out by a vertical plane and a horizontal plane. ing.

  The fitting recess 6 is a recess that is detachably fitted to the fitting protrusion 5 of the container body 3. The fitting recess 6 is formed along the entire circumference of the lid side wall 41 at a position corresponding to the fitting projection 5. In addition, since the recessed part 6 for fitting of this embodiment is formed so that all the inner edge parts of the lid side wall 41 may be notched until it reaches the back surface 40b of the top wall 40, the recessed part 6 for fitting and ceiling Although there is no boundary such as a step between the rear surface 40b of the wall 40, the present invention is not limited to this, and the fitting recess 6 may be formed in a part of the lid side wall 41.

  The fitting main body 3 and the lid body 4 are detachable by fitting the fitting convex portion 5 and the fitting concave portion 6 detachably in the height direction of the main body side wall 31 and the lid side wall 41. By fitting the fitting convex portion 5 and the fitting concave portion 6, the fitting convex portion 5 and the fitting concave portion 6 are sealed (the container body 3 and the lid body 4 are sealed), and the container The opening 2 a of the main body 3 is covered with the lid 4.

  The fitting recess 6 includes a side wall 61 that is a substantially vertical surface and an upper surface 62 that is a horizontal surface. However, in the present embodiment, the fitting recess 6 is formed so as to reach the back surface 40b of the top wall 40 at a position corresponding to the fitting protrusion 5 formed on the inner edge of the main body side wall 31. The upper surface 62 and the back surface 40b of the top wall 40 are continuous surfaces (flat surfaces) having no step. When the fitting convex portion 5 and the fitting concave portion 6 are fitted, the side surface 61 contacts the side wall 51 of the fitting convex portion 5. For this reason, the fitting convex part 5 and the fitting concave part 6 can be fitted with almost no gap. In addition, since the height dimension of the side wall 61 is formed slightly larger than the height dimension of the side wall 51 of the convex part 5 for fitting, the lower surface 62 of the concave part 6 for fitting and the convex part 5 for fitting at the time of the said fitting. A gap is maintained between the upper surface 52 and the upper surface 52. For this reason, at the time of the fitting, the upper end surface 31a of the main body side wall 31 that is a horizontal surface and the lower end surface 41a of the lid side wall 41 that is also a horizontal surface can be brought into contact with no gap.

  The lid 4 includes a reinforcing convex portion 401 at a rectangular edge portion on the surface 40 a of the top wall 40. The reinforcing convex portion 401 is provided continuously in the rectangular circumferential direction of the top wall 40. The reinforcing convex portion 401 is formed integrally with the top wall 40 so as to protrude from the surface 40a. The reinforcing convex portion 401 is formed to have the same width over the entire length. Further, the upper surface 401a of the reinforcing convex portion 401 is a flat surface, and is set to an equal height from the surface 40a over the entire length. In this embodiment, rounds are formed at the outer corners of the reinforcing convex portion 401. Thereby, similarly to the rounded portion 3a of the container main body 3, even when the containers 1 collide with each other during the cargo handling operation, the lid 4 is unlikely to be damaged, and the container 1 can be prolonged. And it can be set as the rounded external appearance as the whole container 1, and can have a unity in design.

  In this embodiment, the protruding height from the front surface 40 a of the reinforcing convex portion 401 is substantially equal to the protruding height from the back surface 30 d of the protruding portion 30 b in the container body 3. The size of the surface 40 a surrounded by the reinforcing convex portion 401 is larger than the size of the protruding portion 30 b in the container body 3. Thereby, the container main body 3 of another container 1 is located above the cover body 4, and the some containers 1-1 can be stacked up and down.

  The container 1 having the above-described structure is configured such that, for example, a container to be transported such as an individual container containing rice for school lunch or a lunch box is stored in the container body 3 from the opening 2a of the container body 3 by a cargo handler or the like. By mounting 4, the opening 2 a is closed (the inner space of the container 1 is almost sealed with respect to the outside), and the container 1 is transported in this state. Arrangement of the objects to be conveyed in the internal space of the container 1 can be performed in various ways. For example, a plurality of objects to be conveyed may be stacked, and a partition member made of cardboard or the like is disposed between the plurality of objects to be conveyed. May be.

  In order to attach the lid 4 to the container main body 3, the fitting concave portion 6 formed on the lid body 4 side from above is aligned with the fitting convex portion 5 formed on the container main body 3 side. The fitting convex part 5 and the fitting concave part 6 are fitted.

  Since the container 1 (the container main body 3 and the lid body 4) is made of a foaming synthetic resin, it is possible to suppress the impact at the time of cargo handling or transportation from reaching an individual container containing rice and a lunch box or the like by a buffering action. Moreover, it can convey, keeping warm the separate container containing rice rice, a lunch box, etc. with a heat retention effect | action. In addition, in the state where the lid body 4 is attached to the container main body 3, each gripping part 32, 42 has a finger other than the thumb such as a cargo operator on the lower part (the finger-holding concave part 34 in this embodiment) of the main body side gripping part 32. Since it is hung and it is comprised so that thumbs, such as a loader, may be hung on the upper part (upper surface 42a) in the cover body side holding part 42, a loader etc. can lift the container 1 stably.

  And the container 1 of the said structure is the front-and-rear side walls 320 and 320 which are short side walls, and the front-and-rear side walls 420 and 42 by each holding part 32 and 42 formed over the width direction (left-right direction) full length of the front-and-back side walls 320 and 420. The strength of 420 is ensured. Furthermore, the strength of the gripping portion 32 itself is ensured by the fitting convex portion 5 provided at a position along the main body side gripping portion 32 and having a width dimension larger than those provided at other positions. For this reason, even if an individual container containing rice, which is a heavy object, a lunch box, or the like is stored, the container 1 is not easily deformed when lifted.

  The container 1 having the above-described configuration has a larger thickness on the lower side than on the upper side of the side walls 310 and 320 of the container main body 3, so that the weight of the object to be transported is particularly high among the containers 1. The lower part is reinforced. Moreover, when the expansion ratio of the synthetic resin particles is 30 times or less, at least the container body 3 can be made entirely hard and strong.

  The container 1 of the present embodiment is used so that the lower surface 300b of the projecting portion 30b is directly placed on the floor surface, or the lower surface 300b is positioned on the surface 40a of the top wall 40 of the lid 4 of the other container 1. It is possible to stack and use.

  In addition, the container of this invention can accommodate various things which are especially heavy goods as a to-be-conveyed object other than the individual container and lunch box containing the rice for school meals demonstrated above.

DESCRIPTION OF SYMBOLS 1 ... Container, 2a ... Opening part, 3 ... Container main body, 4 ... Cover body, 5 ... Convex part for fitting, 6 ... Concave part for fitting, 30 ... Bottom wall, 31 ... Side wall, 40 ... Top wall, 41 ... Cover body Side wall, 32 ... gripping part (container main body side), 42 ... gripping part (lid side)

Claims (4)

It has a container body and a lid made of foaming synthetic resin, and the container body is erected on the polygonal bottom wall and the outer peripheral edge on the front side of the bottom wall, and the end in the height direction is the opening of the container body A frame-shaped body side wall,
The container body includes a fitting convex portion formed over the entire circumference of the height direction end of the side wall of the main body, and the lid body is formed over the entire circumference on the back side and corresponds to the fitting convex portion. And the container body and the lid body are detachable by fitting the fitting convex part and the fitting concave part detachably in the height direction.
In the container body and the lid body, provided with a gripping part that protrudes further outward than the outer surface of the side wall corresponding to the two opposite sides of the polygon,
A fingertip of a cargo operator or the like enters when lifting the lid mounted on the container main body into one of the outer edge of the gripping portion on the container body side and the outer edge of the gripping portion on the lid body side. A recess is formed,
The grip portion on the container body side and the grip portion on the lid body side are combined in the height direction in a state where the lid body is mounted on the container body, and when the lid body is lifted in this combined state The grip part on the lid body abuts along the grip part on the container body side , except for the concave part into which the fingertip of the cargo operator or the like enters , and a finger other than the thumb of the loader or the like is placed below the grip part on the container body side. It is configured such that the thumb of a cargo operator etc. can be hung on the upper part of the grip part on the lid side ,
Among the fitting convex portions, the fitting convex portion provided at a position along the grip portion on the container main body side in a plan view has a larger width direction dimension than the fitting convex portion provided at another position. .   The grip part on the container body side and the grip part on the lid side are formed on the outer surface of the side wall corresponding to the two opposite sides of the polygon in the container body and the cover body over the entire length in the width direction of the outer surface. The container according to claim 1. Containers of the lower part according to claim 1 or 2 larger thickness than the upper portion of the body sidewall. The foamable synthetic resin is expanded polystyrene,
The container in any one of Claims 1-3 whose foaming magnification of the foamed synthetic resin particle which comprises the said container main body is 30 times or less.

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