阅读说明：本技术 集装箱的角部构造 (Corner structure of container ) 是由 石川史纲 黑须谦一 于 2020-03-24 设计创作，主要内容包括：【课题】本发明抑制对于设置在集装箱的角部的拐角盖的损伤。【解决手段】一种集装箱的角部构造,具备三个壁部(上壁部、侧壁部、后壁部)相互正交的位置周边的第一角部及三个壁部中的两个壁部的缘部相互邻接的位置周边的第二角部。在第一角部,安装具备三个盖面(盖上壁、盖侧壁及盖后壁)的拐角盖。在第二角部,安装具备两个轨道面(轨道上壁及轨道后壁)的拐角轨道。拐角盖与拐角轨道在同一壁部处的表面是由同一面形成,在第一角部及第二角部处的拐角盖及拐角轨道的内侧,设置遍及拐角盖与拐角轨道延伸的芯材。(The invention provides a container which can prevent damage to a corner cover arranged at the corner of the container. [ MEANS FOR solving PROBLEMS ] A corner structure of a container is provided with a first corner around the position where three wall parts (an upper wall part, a side wall part and a rear wall part) are orthogonal to each other and a second corner around the position where the edges of two wall parts of the three wall parts are adjacent to each other. A corner cover having three cover surfaces (a cover upper wall, a cover side wall, and a cover rear wall) is attached to the first corner portion. A corner rail having two rail surfaces (a rail upper wall and a rail rear wall) is attached to the second corner portion. The surfaces of the corner cover and the corner rail at the same wall portion are formed by the same surface, and a core material extending over the corner cover and the corner rail is provided inside the corner cover and the corner rail at the first corner portion and the second corner portion.)

1. A corner structure of a container, comprising a corner cover, a corner rail, and a core, wherein the corner cover is attached to a first corner portion around a position where three wall portions are orthogonal to each other and includes three cover surfaces covering surfaces of the three wall portions, the corner rail is attached to a second corner portion around a position where edges of two wall portions of the three wall portions are adjacent to each other and includes two rail surfaces covering surfaces of the two wall portions,

the surface of the corner cover at the same wall portion as the corner rail is formed by the same face,

the core material is provided inside the corner cover and the corner rail at the first corner and the second corner, and extends over the corner cover and the corner rail.

2. A corner structure of a container according to claim 1, wherein said three wall portions include a heat insulating material and a panel material provided so as to cover an outer side of said heat insulating material,

the cover surface of the corner cover and the rail surface of the corner rail are respectively abutted against the surface of the panel.

3. A corner structure of a container according to claim 1 or 2, wherein end edge portions of the cover surface of the corner cover and the rail surface of the corner rail are butted against each other, and the core material is provided inside the butted portion.

4. A corner structure of a container according to any one of claims 1 to 3, wherein the corner cover includes a positioning portion for positioning an end portion of the core material by abutting against the end portion.

5. A corner structure of a container according to claim 4, wherein a recess is formed over the first corner and the second corner, a protrusion entering the recess is formed on an inner surface of the corner cover, a position where the core material enters the recess is adjacent to a position where the protrusion enters the recess, and the positioning portion is formed by the protrusion.

6. A corner structure of a container as claimed in any one of claims 1 to 5, wherein a sealant is applied to at least one of an outer surface of said core material, and an inner surface of said corner cover and said corner rail which are in contact with said outer surface.

Technical Field

The present invention relates to a corner structure of a container.

Background

As a corner structure of a container, it is known to attach an inner lid to a front top corner joint portion where a front wall, a side wall, and a top wall of a refrigerator are joined, apply a sealant to a gap therebetween, and attach an outer lid so as to cover the inner lid.

[ background Art document ]

[ patent document ]

[ patent document 1] Japanese patent laid-open No. 2008-174171

Disclosure of Invention

[ problems to be solved by the invention ]

If the outer cover is configured to cover the inner cover, the outer cover will protrude relative to the surfaces of the front wall, side walls and top wall. In this case, if an external force acts on the edge of the cover due to contact or the like, the cover may be turned up. In particular, since the shipping container is very rough to handle, corners where the cover is attached are easily damaged.

Therefore, an object of the present invention is to suppress damage to the corner of a container.

[ means for solving problems ]

In one aspect of the present invention, a corner cover including three cover surfaces covering surfaces of three wall portions is attached to a first corner portion around positions where the three wall portions are orthogonal to each other, and corner rails including two rail surfaces covering the surfaces of two wall portions are attached to a second corner portion around positions where edge portions of the two wall portions of the three wall portions are adjacent to each other. The corner cover and the corner rail have the same surface on the same wall, and a core material extending over the corner cover and the corner rail is provided on the inner sides of the corner cover and the corner rail at the first corner and the second corner.

[ Effect of the invention ]

According to the present invention, damage to the corner cover can be suppressed.

Drawings

Fig. 1 is a perspective view of a container having a corner structure according to the present embodiment.

Fig. 2 is a perspective view showing a corner of the container of fig. 1.

Fig. 3 is a perspective view showing a state in which one corner rail and the core material are removed from fig. 2.

Fig. 4 is a perspective view showing a state in which the corner cover is removed with respect to fig. 2.

Fig. 5 is a perspective view of the corner cover viewed from the back side.

Fig. 6 is a perspective view showing a state in which the core member is attached to fig. 3.

Fig. 7 is a perspective view of the core material.

Detailed Description

The corner structure of the container according to the present embodiment will be described in detail below. For convenience of explanation, the dimensional ratios in the drawings are exaggerated and may be different from the actual ratios.

Fig. 1 shows an air container 1 as an example. The container 1 includes a container body 3 having a substantially rectangular parallelepiped shape as a whole, and a door 5 provided on one surface of the front side of the container body 3 and opened in the left and right directions. The container body 3 includes an upper wall portion 7, a lower wall portion 9, a rear wall portion 11, and left and right side wall portions 13 and 15. A base 16 is provided below the lower wall 9.

A door opening 17 is formed on one surface of the container body 3 on the front side, and the door 5 is attached to the door opening 17 so as to be openable and closable. A front wall 19 of the container body 3 is formed above the door opening 17. The door 5 includes a left door 21 and a right door 23. The left door 21 has a smaller width in the left-right direction than the right door 23. The left door 21 is opened and closed by upper and lower hinges 25 and 27 provided at the end of the side wall portion 13 on the door opening 17 side. The right door 23 is opened and closed by three upper and lower hinges 29, 31, 33 provided at the end of the side wall 15 on the door opening 17 side.

A lock lever 35 extending in the vertical direction is provided inside the right door 23 near the left door 21. A lock mechanism 37 is provided at the lower end of the lock lever 35. By rotating the lock lever 35, the lock pawl on the lock lever 35 side is engaged with the engaged portion on the container body 3 side, thereby performing locking. The locking lever 35 is rotated by operating an operating lever 39 provided at the substantially center of the right door 23.

When the locking operation is performed, it is performed in a state where the left door 21 is closed first and then the right door 23 is closed. At this time, the opening of the left door 21 is restricted so that the edge portion of the right door 23 on the left door 21 side covers the edge portion of the left door 21 on the right door 23 side.

The container body 3 and the door 5 are each a heat insulating structure including an outer plate, an inner plate, and a heat insulating material filled between the outer plate and the inner plate. Therefore, the container 1 of the present embodiment can be used for refrigeration or freezing. The heat insulating material is made of, for example, foamed urethane.

Next, a corner structure of the container body 3 will be explained.

Fig. 2 is a rear view of a portion a of fig. 1. As shown in fig. 2, a first corner portion 41 is formed around a position where three wall portions of the upper wall portion 7, the side wall portion 15, and the rear wall portion 11 are orthogonal to each other. A corner cover 43 is mounted on the first corner 41. Second corner portions 45(45A, 45B, 45C) are formed near positions where the edge portions of two of the three wall portions (the upper wall portion 7, the side wall portion 15, and the rear wall portion 11) are adjacent to each other. Corner rails 47(47A, 47B, 47C) are mounted at the second corners 45(45A, 45B, 45C), respectively.

A corner rail 47A is attached to a second corner portion 45A between the upper wall portion 7 and the rear wall portion 11, a corner rail 47B is attached to a second corner portion 45B between the upper wall portion 7 and the side wall portion 15, and a corner rail 47C is attached to a second corner portion 45C between the side wall portion 15 and the rear wall portion 11. The three corner rails 47A, 47B, and 47C may have different lengths, but have substantially the same overall shape and a substantially L-shaped cross section.

Fig. 3 shows a state in which the corner rail 47A is removed together with a core 87 (refer to fig. 6 and 7) to be described later with respect to fig. 2, and fig. 4 shows a state in which the corner cover 43 is removed with respect to fig. 2. As shown in fig. 3, the upper wall portion 7 includes a heat insulator 49, an outer plate 51 provided outside the heat insulator 49, and an inner plate 50 provided inside the heat insulator 49. Similarly, the rear wall 11 includes a heat insulator 53, an outer plate 55 provided outside the heat insulator 53, and an inner plate 56 provided inside the heat insulator 53. As shown in fig. 4, the side wall portion 15 includes a heat insulator 57, an outer plate 59 provided on the outer side of the heat insulator 57, and an inner plate, not shown, provided on the inner side of the heat insulator 57. The outer plates 51, 55, 59 constitute panel members.

As shown in fig. 3, a recess 61 is formed in the abutting portion (a portion corresponding to the second corner 45A in fig. 2) of the upper wall 7 and the rear wall 11. The recess 61 has a shape in which an end surface 61a on the upper wall portion 7 side and an end surface 61b on the rear wall portion 11 side are orthogonal to each other. As shown in fig. 4, a recess 63 similar to recess 61 is also formed in the abutting portion (the portion corresponding to second corner 45B) of upper wall portion 7 and side wall portion 15, and a recess 65 similar to recess 61 is also formed in the abutting portion (the portion corresponding to second corner 45C) of side wall portion 15 and rear wall portion 11.

Fig. 5 shows the corner cover 43 from the rear side. The corner cover 43 includes a cover upper wall 67 that abuts and overlaps the surface of the outer panel 51 of the upper wall portion 7, a cover side wall 69 that abuts and overlaps the surface of the outer panel 59 of the side wall portion 15, and a cover rear wall 71 that abuts and overlaps the surface of the outer panel 55 of the rear wall portion 11. The lid top wall 67, the lid side walls 69, and the lid rear wall 71 are formed in a substantially square plate shape, and constitute a lid surface.

A curved surface 73 is formed between the lid upper wall 67 and the lid side wall 69, a curved surface 75 is formed between the lid upper wall 67 and the lid rear wall 71, and a curved surface 77 is formed between the lid side wall 69 and the lid rear wall 71. The vicinity of the vertex 79 of the first corner 41 where the three curved surface portions 73, 75, 77 intersect is spherical.

On the back sides of the curved surface portions 73, 75, 77, substantially rectangular parallelepiped convex portions 81, 83, 85 are formed, respectively. The convex portions 81, 83, 85 enter the concave portions 61, 63, 65 described in fig. 3 and 4, respectively. The three protrusions 81, 83, and 85 have the same shape, and therefore the protrusion 83 will be described as a representative.

The convex portion 83 includes a contact surface 83a that contacts the end surface 61a of the concave portion 61, a contact surface 83b that contacts the end surface 61b, and a positioning surface 83c that is a positioning portion that contacts the end portion of the core member 87. The positioning surface 83c is located at a position recessed inward with respect to the end edges of the lid upper wall 67 and the lid rear wall 71. The same portions of the convex portion 81 as the convex portion 83 are contact surfaces 81a and 81b and a positioning surface 81c, and the same portions of the convex portion 85 as the convex portion 83 are contact surfaces 85a and 85b and a positioning surface 85 c.

The corner cover 43 is fixed with a tapping screw 88. Tapping screws 88 are inserted into screw insertion holes 89 formed in the lid upper wall 67, the lid side wall 69, and the lid rear wall 71, and screw insertion holes 91 formed in the outer panels 51, 59, and 55, respectively, and screwed into the heat insulators 49, 57, and 53.

As described above, the three corner rails 47A, 47B, and 47C have substantially the same shape, and therefore the corner rail 47A will be described in detail as a representative example. The corner rail 47A includes a rail upper wall 47Aa that abuts and overlaps the surface of the outer plate 51 of the upper wall portion 7, and a rail rear wall 47Ab that abuts and overlaps the surface of the outer plate 55 of the rear wall portion 11. The rail upper wall 47Aa is bent at an angle of 90 degrees with the rail rear wall 47 Ab. A curved surface portion 47Ac is formed between the rail upper wall 47Aa and the rail rear wall 47 Ab. The curved surface shape of the curved surface portion 47Ac is equivalent to the curved surface shapes of the curved surface portions 73, 75, 77 of the corner cover 43. The rail upper wall 47Aa and the rail rear wall 47Ab constitute a rail surface of the corner rail 47A.

The corner rail 47B includes a rail upper wall 47Ba and a rail side wall, not shown, and a curved surface portion 47Bc is formed between the rail upper wall 47Ba and the rail side wall which are bent at an angle of 90 degrees to each other. The corner rail 47C includes a rail rear wall 47Ca and a rail side wall, not shown, and a curved surface portion 47Cc is formed between the rail rear wall 47Ca and the rail side wall that are bent at an angle of 90 degrees to each other.

The three corner rails 47(47A, 47B, 47C) are fixed to the container body 3 by tapping screws 93, similarly to the corner cover 43. Tapping screws 93 are inserted into screw insertion holes (not shown) formed in the corner rails 47(47A, 47B, 47C) and the outer panels 51, 59, 55, respectively, and screwed into the heat insulators 49, 57, 53.

The surfaces of the corner cover 43 and the corner rail 47 at the same wall of the container body 3 are substantially coplanar without a step difference formed therebetween. For example, as shown in fig. 2, the surfaces of the upper wall portion 7, the cover upper wall 67 of the corner cover 43, the rail upper wall 47Aa of the corner rail 47A, and the rail upper wall 47Ba of the corner rail 47B are coplanar. Similarly, the surfaces of the rear wall portion 11, the cover rear wall 71 of the corner cover 43, the rail rear wall 47Ab of the corner rail 47A, and the rail rear wall 47Ca of the corner rail 47C are coplanar.

The curved surface portion 75 of the corner cover 43 is coplanar with the surface of the curved surface portion 47Ac of the corner rail 47A, with almost no step difference formed therebetween. Similarly, the curved surface portion 73 of the corner cover 43 and the curved surface portion 47Bc of the corner rail 47B are coplanar, and a step difference is hardly formed therebetween. The curved surface portion 77 of the corner cover 43 is coplanar with the surface of the curved surface portion 47Cc of the corner rail 47C, and a step difference is hardly formed therebetween.

Fig. 6 is a view opposite to fig. 3 with the core 87 attached. The cross-sectional shape of the core member 87 in the direction orthogonal to the longitudinal direction is the same as the cross-sectional shape of the projections 81, 83, 85 shown in fig. 5. The core member 87 is disposed in the recesses 63 and 65 shown in fig. 4 in the same manner as the recess 61 shown in fig. 6. The core members 87 disposed in the three recesses 61, 63, 65 are all the same.

As shown in fig. 7 as a single-piece drawing, the core 87 shown in fig. 6 includes a first side surface 87a abutting against the end surface 61a of the recess 61, a second side surface 87b abutting against the end surface 61b of the recess 61, a third side surface 87c located opposite to the first side surface 87a, and a fourth side surface 87d located opposite to the second side surface 87 b. A corner between the third side 87c and the fourth side 87d is formed as a curved surface 87 e. Both ends of the core member 87 in the longitudinal direction are flat surfaces 87f, 87 g.

As shown in fig. 6, in a state where the core member 87 is attached to the recess 61, the flat surface 87f abuts against the positioning surface 83c of the corner cover 43 shown in fig. 3. The positioning when the core member 87 is attached is performed by bringing the flat surface 87f into contact with the positioning surface 83 c. In the positioned state, the third side surface 87c abuts the rail rear wall 47Ab of the corner rail 47A and the vicinity of the cover rear wall 71 of the corner cover 43. As shown in fig. 5, the vicinity of the cover rear wall 71 where the third side surface 87c abuts is thicker than the cover rear wall 71. The fourth side surface 87d abuts on the rail upper wall 47Aa of the corner rail 47A and the vicinity of the cover upper wall 67 of the corner cover 43. As shown in fig. 5, the vicinity of the lid upper wall 67 where the fourth side surface 87d abuts is thicker than the lid upper wall 67. The curved surface portion 87e abuts against the curved surface portion 75 of the corner cover 43 and the curved surface portion 47Ac of the corner rail 47A.

Similarly, the core member 87 disposed in the other recesses 63 and 65 is also positioned by bringing the flat surface 87f into contact with the positioning surfaces 81c and 85c, respectively. As shown in fig. 6, when the core member 87 is attached, a sealant is applied to three surfaces, namely, the third side surface 87c, the fourth side surface 87d, and the flat surface 87 f. In particular, by applying the sealant to the third side surface 87c and the fourth side surface 87d, which are the outer surfaces, the sealing effect is obtained for the peripheries of the portions where the end portions of the curved surface portions 73, 75, 77 of the corner cover 43 abut against the end portions of the curved surface portions 47Ac, 47Bc, 47Cc of the corner rail 47.

Next, the operation and effect of the present embodiment will be described.

The corner structure of the container according to the present embodiment includes a first corner 41 around a position where three wall portions (the upper wall portion 7, the side wall portion 15, and the rear wall portion 11) are orthogonal to each other, and a second corner 45 around a position where edges of two of the three wall portions are adjacent to each other. The corner cover 43 having three cover surfaces (a cover upper wall 67, a cover side wall 69, and a cover rear wall 71) for covering the surfaces of the three wall portions is attached to the first corner portion 41. A corner rail 47 having two rail surfaces (a rail upper wall 47Aa and a rail rear wall 47Ab) covering the surfaces of the two wall portions is attached to the second corner portion 45.

The surfaces of the corner cover 43 and the corner rail 47 at the same wall portion are coplanar, and a core member 87 extending over the corner cover 43 and the corner rail 47 is provided inside the corner cover 43 and the corner rail 47 at the first corner portion 41 and the second corner portion 45.

Here, the air containers 1 are very rough in handling, and the containers 1 may be damaged due to collision or the like. In particular, the first corner 41 around the position where the three wall portions of the upper wall portion 7, the side wall portion 15, and the rear wall portion 11 are orthogonal to each other is susceptible to impact. However, in the present embodiment, since the surfaces of the corner cover 43 and the corner rail 47 at the same wall portion are coplanar, no step difference is formed between the corner cover 43 and the corner rail 47. Therefore, damage such as the end edge of the corner cover 43 being caught and turned up can be suppressed. Further, since the core member 87 can ensure the sealing property between the corner cover 43 and the corner rail 47, rainwater and the like can be prevented from penetrating into the container from the abutting portion between the heat insulator 49 and the heat insulator 53 shown in fig. 3.

In the present embodiment, the three wall portions (the upper wall portion 7, the side wall portion 15, and the rear wall portion 11) include the heat insulators 49, 57, and 53, and the outer plates 51, 59, and 55 provided so as to cover the outer sides of the heat insulators 49, 57, and 53. The cover surfaces (e.g., the cover top wall 67, the cover side wall 69, and the cover rear wall 71) of the corner cover 43 and the rail surfaces (the rail top wall 47Aa and the rail rear wall 47Ab) of the corner rail 47 respectively abut against the surfaces of the outer plates 51, 55.

Therefore, even if an external force acts on the corner cover 43, the external force is directly transmitted to the outer plates 51, 55, and therefore the occurrence of a dent in the corner cover 43 is suppressed. In the corner cover 43, since the convex portions 81, 83, 85 are fitted into the concave portions 63, 61, 65, respectively, the heat insulators 49, 53 and the outer plates 51, 55 are in contact with the peripheries of the curved surface portions 73, 75, 77 and the vertex 79, and almost no gap is formed. Therefore, the corner cover 43 can be prevented from being dented, and damage can be more reliably prevented.

In the present embodiment, the end edge portions of the cover surface (the cover upper wall 67, the cover side wall 69, and the cover rear wall 71) of the corner cover 43 and the rail surface (the rail upper wall 47Aa and the rail rear wall 47Ab) of the corner rail 47 abut against each other, and the core member 87 is provided inside the abutting portion. Therefore, the core member 87 can ensure the sealing property of the abutting portion between the corner cover 43 and the corner rail 47.

The corner cover 43 of the present embodiment includes a positioning surface 81c for positioning the flat surface 87f of the end of the core member 87 by abutting against it. Therefore, when the core member 87 is attached, the flat surface 87f only needs to be brought into contact with the positioning surface 81c, and the attachment work of the core member 87 becomes easy.

In the present embodiment, the recessed portions 61, 63, 65 are formed over the first corner portion 41 and the second corner portion 45, and the protruding portions 83, 81, 85 that enter the recessed portions 61, 63, 65 are formed on the inner surface of the corner cover 43. The position where the core 87 enters the concave portions 61, 63, 65 is adjacent to the position where the convex portions 81, 83, 85 enter the concave portions 63, 61, 65 (i.e., the core 87 is provided in the concave portions 61, 63, 65 at the position adjacent to the convex portions 83, 81, 85). The projections 81, 83, 85 are formed with positioning surfaces 81c, 83c, 85 c.

In this case, the corner cover 43 can be easily attached by inserting the convex portions 81, 83, 85 into the concave portions 63, 61, 65, and the core 87 can be easily attached by inserting the core into the concave portions 61, 63, 65. In this case, since the positioning surfaces 81c, 83c, 85c against which the flat surface 87f of the core member 87 abuts and positions are formed at the end portions of the convex portions 81, 83, 85, it is not necessary to provide a dedicated positioning portion.

In the present embodiment, a sealant is applied to the third side surface 87c and the fourth side surface 87d of the core member 87. The applied sealant can ensure the sealing property of the abutting portion between the corner cover 43 and the corner rail 47 more reliably.

While the embodiments of the present invention have been described above, these embodiments are merely illustrative examples described for easy understanding of the present invention, and the present invention is not limited to these embodiments. The technical scope of the present invention is not limited to the specific technical items disclosed in the above embodiments, and includes various modifications, alterations, and alternative techniques that can be easily derived from the technical items.

For example, although the sealant is applied to the third side surface 87c and the fourth side surface 87d of the core member 87 in the embodiment, the sealant may be applied to the inner surfaces of the corner cover 43 and the corner rail 47 which are in contact with the third side surface 87c and the fourth side surface 87 d.

In the above embodiment, the air container 1 is described as an example, but the present invention is not limited to the air container, and may be applied to a container for a ship or a truck (a lorry), for example.