JP2013203460A - Container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container capable of reliably preventing load shifting even during distribution/transportation.SOLUTION: A length A in a longitudinal direction of a container body, a length B in a short direction and a height C are determined for the container to be used for storage and distribution/transportation of an article to be conveyed weighing about 10-20 kg. Either one of a locking protrusion for regulating a horizontal displacement of the container on an upper stage side relative to the container on a lower stage side, or a locked protrusion locked with the locking protrusion in a lateral direction, is provided in either one of a bottom wall and a top wall in a state that the bottom wall of the container body of the container on the upper stage side is stacked on the top wall of the lid of the container on the lower stage side, and the other one of the locking protrusion and the locked protrusion is provided in the other one of the bottom wall and the top wall. The locking protrusion and the locked protrusion are of roughly equal locking height D, and when the ratio of A, B, C, and D is represented as A:B:C:D, A:B:C:D is 60-65:35-40:20-25:1.

Description

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

  As this type of container, a container having a box-shaped container main body with an upper end as an opening and a lid that is detachably attached to the opening is known. The container body includes a bottom wall and a side wall, and a locking projection that protrudes downward from the outer peripheral edge portion is formed on the back surface (lower surface) of the bottom wall. On the surface (upper surface) of the top wall of the lid, a frame-like locked convex portion that protrudes upward from the outer peripheral edge portion is formed (for example, see Patent Document 1 below).

  In order to improve the transportation efficiency of physical distribution, such containers are delivered to the destination by transport means such as transport trucks and airplanes in a state in which transported objects (fish, shellfish, etc.) are accommodated and stacked. There is a case. The container is locked in the lateral direction (front / rear / left / right) to the locked convex part of the container lid placed on the lower stage side in the stacked state. In this way, the upper container is prevented from collapsing the large container from being displaced or dropped from the lower container.

JP 2007-118971 A

  In the said conventional container, it is set as the countermeasure which prevents a load collapse by latching a to-be-latched convex part and a latching convex part. However, when the heights of the raised protrusions and the raised protrusions are not based on the weight of the object to be conveyed and are set to be non-standard, the weight of the object to be conveyed accommodated in the container (for example, about 10 to 20 kg) ), When the vibration is received from the conveying means, the locked convex portion and the locking convex portion are unlocked. When this happens, the collapsing of the stacked containers occurs.

  Therefore, an object of the present invention is to provide a container that can reliably prevent the collapse of cargo even during physical distribution.

The container of the present invention includes a container body made of a foamable synthetic resin and a lid, and the container body is erected on the polygonal bottom wall and the outer peripheral edge of the bottom wall, and the height direction end is the container body. A frame-shaped side wall serving as an opening of the container, the lid includes a polygonal top wall, and the container body and the lid are detachably attached to each other by a fitting part and a fitted part that are detachably fitted. The length A in the longitudinal direction, the length B in the short direction, and the height C of the container main body are determined so as to accommodate the object to be transported having a weight of about 10 to 20 kg for use in physical distribution. In a state where the bottom wall of the container body of the upper side container is stacked on the top wall of the lid of the lower side container on one of the bottom wall and the top wall. Locking protrusion that restricts lateral displacement of the upper container with respect to the lower container, and locking with the locking protrusion in the lateral direction Any one of the protruding projections is provided, and the other of the bottom wall and the top wall is provided with the other of the locking projection and the locked projection, and the locking projection. And the to-be-latched protrusions have substantially equal locking heights D, and A: B: C: D, which is the ratio of A, B, C, D,
A: B: C: D = 60-65: 35-40: 20-25: 1
It is characterized by being said.

  Like the container having the above configuration, the length A in the longitudinal direction of the container body, the length B in the short direction, and the height C in order to transport the weight of the object to be transported in the range of approximately 10 to 20 kg. Then, the ratio of A, B, C, and the locking height D of the locking projection and the locking projection is set to 60 to 65:35 to 40:20 to 25: 1. If the container containing the objects to be transported is transported in a stacked state and an external force along the surface direction of the top wall is applied to the container, the locking projections and the locking projections The state where the lock is released can be sufficiently avoided, and a large lateral shift of the upper container with respect to the lower container is avoided.

  In the container of the present invention, the length A in the longitudinal direction, the length B in the short direction, and the height C of the container body are used in order to transport the weight of the object to be conveyed in the range of approximately 10 to 20 kg. After deciding, the ratio of A, B, C, and the locking height D of the locking convex part and the locked convex part is set to 60 to 65:35 to 40:20 to 25: 1. As a result, the locking projection and the locked projection can be locked at a sufficient height, and the collapse of the container can be reliably prevented.

It is a perspective view of the state where a lid was removed from a container main part in a container showing one embodiment of the present invention. It is a rear view of the state which removed the cover body from the container main body in the container. It is a side view of the container main body in the container. It is a top view of the container main body in the container. It is a bottom view of the container main body in the container. It is a longitudinal cross-sectional view in the left-right direction center part of the container main body and cover body in the container. It is a top view of the lid in the container. It is a bottom view of the lid in the container. It is a longitudinal cross-sectional view in the left-right direction center part of the container main body and the cover body in the container piled up in the same stage.

  Hereinafter, an embodiment of a container according to the present invention will be described with reference to FIGS. 1 to 9. The container 1 of the present embodiment is formed in a box shape that can accommodate a transported object in a range of a predetermined weight (for example, a fishery product of yellowtail and hamachi as fish). The range of the predetermined weight is a weight of about 10 to 20 kg.

  As shown in FIG. 1, the container 1 has a container body 3 made of an expandable synthetic resin having an opening 2 at the upper end, and the opening 2 of the container body 3 is closed so that the inside of the container body 3 is almost sealed. And a lid 4 made of a foamable synthetic resin. Although it does not specifically limit as a foamable synthetic resin, For example, various foamable synthetic resins, such as a foamed polystyrene, a foamed polyethylene, a foamed polypropylene, can be utilized. In the following description, the short side direction of the container 1 is the left-right direction (in FIG. 1, the left direction is L and the right direction is R), and the long side direction of the container 1 is the front-rear direction (see FIG. 1, the forward direction is indicated by F, and the backward direction is indicated by B).

  As shown in FIGS. 2 to 4, the container body 3 includes a bottom wall 30 and a body side wall 31. 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 flat plate shape that is substantially rectangular in plan view. The surface 30b 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 30b of the bottom wall 30 is a flat surface. Further, the back surface 30c of the bottom wall 30 is a flat surface parallel to the front surface 30b. Therefore, in the back surface 30c of the bottom wall 30, the outer peripheral region 30a is a flat surface.

  In the back surface 30c of the bottom wall 30, the outer peripheral region 30a is a flat surface, and the inner part excluding the outer peripheral region 30a is a protruding portion 33 protruding downward from the back surface 30c. The lower surface 33a of the protrusion 33 is formed as a flat surface. The lower surface 33a of the protruding portion 33 is set to have a predetermined height h1 (corresponding to the locking height D, which is a lockable range in the height direction) from the outer peripheral region 30a. The outer peripheral side surface 33b of the protrusion 33 is an inclined surface that is inclined inward toward the lower side (inclined outward toward the upper side). In addition, the protrusion part 33 is formed with a plurality of concave parts (meat stealing parts) 33c that are recessed upward (four places in the present embodiment) (see FIGS. 5 and 6).

  As shown in FIG. 4, the main body side wall 31 is formed in a rectangular frame shape by being raised upward from the outer peripheral edge portion of the surface 30 b of the bottom wall 30. The main body side wall 31 extends upward from left and right side walls 310, 310 raised upward from left and right edges that are a pair of long sides of the bottom wall 30 and from front and rear edges that are a pair of short sides of the bottom wall 30. Front and rear side walls 320 and 320 are provided. On the outer surfaces of the front and rear side walls 320, 320, gripping recesses 321, 321 are formed so as to extend upward from the outer peripheral region 30a of the bottom wall 30 (see FIGS. 1, 2, and 5).

  As shown in FIGS. 2 and 3, the outer surfaces of the left and right side walls 310, 310 are formed as inclined surfaces that are on the inner side toward the lower side (as approaching the surface 30 b side of the bottom wall 30). In addition, inner surfaces in the width direction (hereinafter simply referred to as inner surfaces) of the left and right side walls 310, 310 are formed as inclined surfaces that are inwardly toward 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. In addition, since the inclination angle of the inclined surface is set to 1 °, it is difficult to grasp on the drawing.

  As shown in FIGS. 6 to 9, the lid body 4 includes a top wall 40. 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 shape (an example of a polygonal shape) in plan view, and the surface 40a is a flat surface. The back surface 40b of the top wall 40 is a flat surface parallel to the front surface 40a.

  A reinforcing convex portion 401 is formed on the outer edge portion of the surface 40 a of the top wall 40. In the present embodiment, the reinforcing convex portions 401 are arranged at four corners of the surface 40 a of the top wall 40 so as to be spaced apart from each other at a predetermined interval in the circumferential direction of the top wall 40. The reinforcing convex portions 401 are separated from each other at the center portion of both the front and rear outer edges of the surface 40a of the top wall 40 and the center portion of both the left and right outer edges of the surface 40a of the top wall 40.

  And the area | region where the convex part 401 for reinforcement was spaced apart in the outer edge of the surface 40a hung the band (not shown) for integrating the container main body 3 and the cover body 4 in the longitudinal direction of the container 1, and a transversal direction. For this reason, the band hanging portion 402 is used.

  The reinforcing convex portion 401 is integrally formed so as to protrude upward from the surface 40 a of the top wall 40. The upper end surface 401a of the reinforcing convex portion 401 is set to have a predetermined height h2 from the surface 40a of the top wall 40. The inner peripheral side surface 401b of the reinforcing convex portion 401 is an inclined surface that inclines toward the outside as it goes upward (inclined toward the inside as it goes downward).

  The container body 3 and the lid body 4 are detachable from each other by detachable means (fitting portion and fitted portion) that are detachably fitted. As shown in FIG. 6, the attaching / detaching means is detachably fitted to the lid hanging recess 34 which is a fitting portion formed on the container body 3 side and the lid hanging recess 34 formed on the lid 4 side. It is comprised from the convex part 41 for a fitting which is a to-be-fitted part.

  The lid hanging recess 34 is formed by cutting out an inner region of the upper end surface 31 a of the main body side wall 31 into a frame shape. The lid recess 34 is formed in a stepped cross section from a vertical surface 34a along the vertical direction and a receiving surface 34b along the horizontal direction from the lower end of the vertical surface 34a toward the inside. The fitting convex part 41 is formed in the area | region arrange | positioned by the part corresponding to the width | variety of the upper end surface 31a of the main body side wall 31 in the back surface 40b of the top wall 40. As shown in FIG.

  The fitting convex portion 41 is integrally formed from an upper wide portion 410 and a narrow portion 411 disposed below the wide portion 410. The height of the side surface 410a of the wide width portion 410 is formed substantially equal to the height of the vertical surface 34a. The wide portion 410 and the narrow portion 411 are continuous by a stepped surface 412 in a substantially horizontal direction. The width of the stepped surface 412 is formed approximately equal to the width of the receiving surface 34b. On the lower surface of the fitting convex portion 41 (the lower surface 411a of the narrow width portion 411), concave portions (meat stealing) 40c for reducing the weight of the lid body 4 are formed at a plurality of locations (four locations in the present embodiment). (See, for example, FIGS. 6 and 8).

  In the state in which the lid hanging concave portion 34 and the fitting convex portion 41 are fitted, the vertical surface 34a and the side surface 410a of the wide width portion 410 are locked so as to be able to contact in the horizontal direction, and the stepped surface is provided on the receiving surface 34b. 412 is placed, and the inner side surface portion of the main body side wall 31 directly below the lid hanging recess 34 and the side surface 411a of the narrow width portion 411 are locked so as to be in contact with each other in the horizontal direction. And if the recessed part 34 for lid | cover covering and the convex part 41 for fitting are fitted, both will be sealed and the opening part 2 of the container main body 3 will be covered with the cover body 4 (refer FIG. 9).

  Here, the protrusion (for example, corresponding to the locking protrusion) 33 formed on the bottom wall 30 of the container body 3 and the reinforcing protrusion (for example, the locking protrusion) formed on the top wall 40 of the lid 4 are described above. The relationship etc. with 401) (equivalent to a part) is described. The lateral width of the outer peripheral side surface 33 b of the protruding portion 33 is set slightly smaller than the lateral width of the inner peripheral side surface 401 b of the reinforcing convex portion 401.

  The front-rear direction width of the outer peripheral side surface 33 b of the protrusion 33 is set slightly smaller than the front-rear direction width of the inner peripheral side surface 401 b of the reinforcing convex portion 401. The predetermined height h1 of the protruding portion 33 and the predetermined height h2 of the reinforcing convex portion 401 are set slightly smaller than the predetermined height h2 of the protruding convex portion 401. Has been.

The relationship between the predetermined height h1 of the protrusion 33 and the predetermined height h2 of the reinforcing convex portion 401 and the dimensions of other components forming the container 1 will be described with reference to FIGS.
(1). The predetermined height h1 of the protrusion 33 and the predetermined height h2 of the reinforcing convex portion 401 are both approximately 10 mm (see FIG. 6).
(2). The width L1 of the outer peripheral region 30a of the bottom wall 30 is approximately 20 mm (see FIG. 6).
(3). Thickness in the direction orthogonal to the inclination direction of the main body side wall 31 (distance between the outer side surface 31b and the inner side surface 31c of the main body side wall 31) d1, the thickness of the bottom wall 30 (the surface 30b of the bottom wall 30 and the protrusion 33) The distance d2 between the lower surface 33a and the lower surface 33a is approximately 25 mm (see FIG. 6).
(4). The thickness of the corner portion of the main body side wall 31 (the distance between the outer side surface 31b and the inner side surface 31c at the corner portion of the main body side wall 31) t1 is approximately 40 mm (see FIG. 4).
(5). The height (the distance between the lower surface 33a of the protrusion 33 and the upper end surface 31a of the main body side wall 31) h3 of the container main body 3 is approximately 230 mm (see FIG. 6). Note that h3 corresponds to the height C.
(6). The lateral width (distance between the outer side surfaces 31b of the left and right side walls 310, 310) X1 of the container body 3 is approximately 370 mm. In addition, this dimension is planar view (refer FIG. 4). X1 corresponds to the length B in the short direction.
(7). The front-rear direction width (distance between the outer surfaces of the front and rear side walls 320, 320) X2 of the container body 3 is approximately 620 mm (see FIG. 4). X2 corresponds to the length A in the longitudinal direction.
(8). The thickness of the lid 4 (height distance between the surface 40a of the top wall 40 and the lower surface 411b of the fitting convex portion 41) d3 is substantially equal to the thickness d1 of the main body side wall 31 and the thickness d2 of the bottom wall 30 and is approximately 25 mm. Yes (see FIG. 6).

  The container 1 having a weight of about 10 to 20 kg including the weight of the object to be conveyed is relatively large as this kind of container. For this reason, as indicated by the above dimensions, the overall size of the container 1 is also relatively large for this type of container. Therefore, the amount (volume, weight) that can accommodate the transported object is large.

  Further, in the container main body 3, the thickness d1 of the main body side wall 31 and the thickness d2 of the bottom wall 30 are set to be thick, and the thickness d3 of the lid body 4 is set to be thick, so The strength of the container body 3 and the lid body 4 is secured when the body 4 is mounted and the container body 3 and the lid body 4 are handled as an integrated object or when the containers 1 are stacked.

Here, the dimensions (1) to (7) are expressed as a ratio. In this embodiment, h1 and h2 are set from the dimensions of the other components of the container 1, and the predetermined height h1 of the protruding portion 33 and the predetermined height h2 of the reinforcing convex portion 401 described in (1). The dimension ratio of the dimensions described in (1) to (7) so that (approximately 10 mm) becomes “1”, that is, (h1 = h2): L1: (d1 = d2): t1: h3: X1: X2 The dimensional ratio of
1: 2: 2.5: 4: 23: 37: 62 (Relational formula 1)
It becomes.

  In the container 1 having the above-described configuration, after the object to be conveyed is received from the opening 2 of the container main body 3 by an operator or the like, the opening 2 is almost sealed by attaching the lid 4 to the container main body 3. (The state in which the inside of the container main body 3 is almost sealed), and the container 1 is provided for physical distribution in this state.

  In order to cover the opening 2 of the container body 3 with the lid 4, the lid hooking concave portion 34 and the fitting convex portion 41 are fitted. And in the state which fitted both, the vertical surface 34a and the side surface 410a of the wide part 410 are latched so that it can contact | abut in a horizontal direction, the stepped surface 412 is mounted in the receiving surface 34b, The inner side surface portion directly below the lid hanging recess 34 and the side surface 411a of the narrow width portion 411 are locked so as to be able to contact in the horizontal direction. In this way, when the lid hooking concave portion 34 and the fitting convex portion 41 are fitted together, both are sealed, the opening 2 of the container body 3 is covered with the lid body 4, and the inside of the container body 3 is covered by the lid body 4. Is almost sealed.

  The container 1 is used so that the lower surface 33a of the projecting portion 33 is directly placed on the floor surface, or the lower surface 33a is placed on the surface 40a of the top wall 40 of the lid 4 of another container 1 as shown in FIG. Can be used. The state in which the lower surface 33a of the protruding portion 33 is placed on the surface 40a of the top wall 40 of the lid 4 of another container 1 is a state in which a plurality of containers 1 are stacked.

  With the lid 4 attached to the container main body 3, a band (not shown) can be hung on the band hanging portion 402 to hold the container main body 3 and the lid 4 so as not to be detached. Since the predetermined height h1 of the projecting portion 33 is set slightly smaller than the predetermined height h2 of the reinforcing convex portion 401, when the containers 1 are stacked, the top wall of the lid 4 on the lower side is stacked. A gap is generated between the surface 40a of 40 and the lower surface 33a of the protrusion 33 in the upper container body 3, and a band is inserted into this gap.

  When the containers 1 of the present embodiment are transported by transporting means such as an aircraft or a vehicle, they are stacked in order to improve transport efficiency. In such a transport environment, the vibration of the transport means or the like acts on the container 1 as an external force. That is, a force that causes the upper container 1 to shift laterally (position shift in the direction along the surface direction of the top wall 40) with respect to the lower container 1 may act on the upper container 1. When a force that laterally shifts the upper container 1 relative to the lower container 1 acts on the upper container 1, the outer peripheral side surface 33 b of the protrusion 33 of the upper container 1 and the lower container 1 are reinforced. The inner peripheral side surface 401b of the convex portion 401 is locked in the lateral direction. And since the inertial energy which generate | occur | produces by external force is large when the comparatively heavy to-be-conveyed object is accommodated like the container 1 of this embodiment, the upper container 1 is compared with the lower container 1. A state in which the cargo is greatly displaced and easily collapsed occurs.

  By the way, in this general container of this kind, both the height of the protruding portion 33 and the height of the reinforcing convex portion 401 are set to about 5 mm regardless of the dimensions of other portions of the container. On the other hand, in the present embodiment, the dimensional ratio between the predetermined height h1 of the projecting portion 33 and the predetermined height h2 of the reinforcing convex portion 401 and the other components of the container 1 is expressed by the relational expression 1 described above. It is set to be. And the dimension of this other component is decided based on the weight (10-20 kg) of the to-be-conveyed object handled.

  For this reason, in the container 1 of this embodiment, the external force by the conveying means works on the stacked containers 1, and the engagement between the protrusion 33 and the reinforcing protrusion 401 as inertial energy according to the weight of the container 1 and the object to be conveyed. Even if it works on the stop portion, it is possible to reliably prevent the protruding portion 33 from coming off the reinforcing convex portion 401. In other words, it is possible to prevent the upper container 1 from being greatly displaced laterally from the lower container 1, that is, the collapse of the load.

  In the present embodiment, the lateral width of the outer peripheral side surface 33 b of the protruding portion 33 is set slightly smaller than the lateral width of the inner peripheral side surface 401 b of the reinforcing convex portion 401. The front-rear direction width of the outer peripheral side surface 33 b of the protrusion 33 is set slightly smaller than the front-rear direction width of the inner peripheral side surface 401 b of the reinforcing convex portion 401. In other words, in the stacked state of the containers 1, the upper container 1 is shifted laterally from the lower container 1 between the outer peripheral side surface 33 b of the protruding portion 33 and the inner peripheral side surface 401 b of the reinforcing convex portion 401. In this case, there is a gap that permits the movement in the lateral direction within a range in which the load does not collapse.

  That is, if an external force sufficient to laterally shift the upper container 1 among the stacked containers 1 is operated, the upper container 1 moves relative to the lower container 1 so as to fill the gap. However, the outer peripheral side surface 33b of the projecting portion 33 and the inner peripheral side surface 401b of the reinforcing convex portion 401 come into contact with each other and are locked in the lateral direction.

  Thus, in the stacked state of the containers 1, if there is a gap between the outer peripheral side surface 33 b of the projecting portion 33 and the inner peripheral side surface 401 b of the reinforcing convex portion 401, the upper side container so as to fill the gap. As much as 1 moves, the upper side container 1 can absorb the force that causes a large lateral shift with respect to the lower side container 1. For this reason, it is possible to prevent the upper container 1 from collapsing more reliably.

  Furthermore, as described above, in a general container of this type, the height of the protruding portion 33 and the height of the reinforcing convex portion 401 are both set to about 5 mm regardless of the dimensions of other portions of the container. ing. On the other hand, in the present embodiment, the predetermined height h1 of the protruding portion 33 and the predetermined height h2 of the reinforcing convex portion 401 are 10 mm in relation to the dimensions of other components of the container 1. That is, in the container 1 of the present embodiment, the height of the protruding portion 33 and the height of the reinforcing convex portion 401 are set approximately twice as compared with a general container of this type.

  In other words, in a state where the containers 1 are stacked, the protruding portion 33 and the reinforcing protrusion when the upper container 1 moves upward with respect to the lower container 1 due to vibrations from the conveying means or the like. The allowable range in the height direction in which the portion 401 can be locked in the lateral direction is large. That is, the container 1 is not only configured to absorb a large lateral shift of the upper container 1 with respect to the lower container 1, but the allowable range of movement in the height direction is also wider than before. Yes. For this reason, the protrusion 33 and the reinforcing convex portion 401 are not easily disengaged, and the collapse of the load can be prevented more reliably.

  The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention. The same applies to the specific configuration of each part. In the above embodiment, the protrusion 33 formed on the bottom wall 30 of the container body 3 is formed in a frame shape, and the reinforcing protrusion 401 formed on the top wall 40 of the lid 4 can be locked from the inside of the protrusion 33. Formed. However, the reinforcing convex portion 401 may be formed in a frame shape, and the protruding portion 33 may be formed so as to be locked from the inside of the reinforcing convex portion 401.

In the above embodiment, the dimensional ratio between the predetermined height h1 of the protrusion 33 and the predetermined height h2 of the reinforcing convex portion 401 and the other components of the container is the dimensional ratio of the relational expression 1, that is,
1: 2: 2.5: 4: 23: 37: 62
It was.

However, the dimensional ratio between the predetermined height h1 of the protruding portion 33 and the predetermined height h2 of the reinforcing convex portion 401 and the other part of the container is determined by the predetermined height h1 of the protruding portion 33 and the predetermined height of the reinforcing convex portion 401. Adopting the dimensional relationship between the height h2, the height h3 of the container body 3, the lateral width X1 of the container body 3, and the longitudinal width X2 of the container body 3,
1: 23: 37: 62
The dimensions of h1 and h2 may be set so that

Further, the dimensional relationship of the predetermined height h1 of the projecting portion 33, the predetermined height h2 of the reinforcing convex portion 401, the height h3 of the container body 3, the lateral width X1 of the container body 3, and the longitudinal width X2 of the container body 3. Is
1: 23: 37: 62
The ratio is not limited. That is, for example,
1: 20-25: 35-40: 60-65
If it is in the range, it is possible to secure the locked state of the protruding portion 33 and the reinforcing convex portion 401 against the lateral deviation based on the predictable external force, and to reliably suppress the collapse of the load. Specifically, h1 = h2 = 10 mm, h3 = 20 mm, X1 = 30 mm, X2 = 60 mm, h1 = h2 = 10 mm, h3 = 25 mm, X1 = 40 mm, X2 = 65 mm .

  DESCRIPTION OF SYMBOLS 1 ... Container, 2 ... Opening part, 3 ... Container main body, 4 ... Cover body, 30 ... Bottom wall, 31 ... Main body side wall, 33 ... Projection part, 33a ... Lower surface, 40 ... Top wall, 401 ... Reinforcement convex part, 401a: upper end surface, 401b: inner peripheral side surface

Claims (1)

A container body made of a foamable synthetic resin and a lid, the container body having a polygonal bottom wall and a frame standing on the outer peripheral edge of the bottom wall and having an end in the height direction as an opening of the container body And the lid body has a polygonal top wall, and the container body and the lid body are detachably attached to each other by a fitting portion and a fitted portion that are detachably fitted. A container in which the length A in the longitudinal direction, the length B in the lateral direction, and the height C of the container main body are determined so as to accommodate an object to be transported having a weight of ˜20 kg and to be used for logistics transportation. ,
The upper side with respect to the lower container in the state where the bottom wall of the container body of the upper container is stacked on the top wall of the lid of the lower container on one of the bottom wall and the top wall. Any one of a locking projection that restricts lateral displacement of the container and a locking projection that can be locked in the lateral direction with the locking projection is provided, of the bottom wall and the top wall. On the other side, the other one of the locking projection and the locked projection is provided, and the locking projection and the locked projection have a substantially equal locking height D,
A: B: C: D, which is the ratio of A, B, C, D,
A: B: C: D = 60-65: 35-40: 20-25: 1
A container characterized by that.

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