JP6868658B2 - Container door seal structure - Google Patents

Description

The present invention relates to a container door seal structure.

As a door seal structure of the container, a heat insulating material is filled between the door panel provided on the front surface side of the door and the lining plate provided on the back surface side of the door, and the upper end of the lining plate and the inner upper end of the door panel are connected. It is known that the edge member is fixed between them. The sealing member is provided on the door panel side of the edge member and on the lining plate, respectively.

Jikkai Sho 62-28792

In the case of a structure in which one integrated edge member is fixed between the lining plate and the door panel, residual stress is generated in the fixed portion of both members due to the difference in dimensional tolerance between the heat insulating material and the edge member. In particular, low-strength members may be damaged.

Therefore, an object of the present invention is to suppress the generation of residual stress at the fixed portion of both the heat insulating material and the edge member even if there is a difference in the dimensional tolerances.

The door seal structure of the container according to one aspect of the present invention includes a container main body, a door that opens and closes a door opening of the container main body, and an edge member attached so as to cover both front and back surfaces and end faces of the peripheral edge of the door. It has a sealing member that is attached to the edge member and seals between the door and the door opening when the door is closed with respect to the door opening. The edge member includes an outer edge member located outside the door and an inner edge member configured as a member separate from the outer edge member and located inside the door. The outer edge member includes an outer surface portion that covers the front surface side of the door and an outer end surface portion that covers the end surface of the door, and the inner edge member includes an inner back surface portion that covers the back surface side of the door. An inner end face portion that covers the end face of the door is provided. The outer edge member is made of metal, and the inner edge member is made of resin. The seal member is attached to a portion where the outer end face portion and the inner end face portion overlap in a direction perpendicular to the end face of the door, and the outer end face portion and the inner end face portion overlap. ing. The outer end face portion, the inner end face portion, and the seal member are overlapped in order from the end face of the door toward the peripheral edge of the door opening, and the outer end face portion, the inner end face portion, and the seal member are fastened. It is fastened by a member.

According to the present invention, even if there is a difference in dimensional tolerance between the heat insulating material and the edge member, it is possible to suppress the generation of residual stress at the fixed portion of both members.

FIG. 1 is a perspective view of a container according to the present embodiment. FIG. 2 is a cross-sectional view taken along the line AA of FIG. FIG. 3 is a cross-sectional view showing the seal member of FIG. 2 and the periphery of the second seal member.

Hereinafter, the door seal structure of the container according to the present embodiment will be described in detail. The dimensional ratios in the drawings are exaggerated for convenience of explanation and may differ from the actual ratios.

FIG. 1 shows a container 1 for aviation as an example. The container 1 includes a container main body 3 having a substantially rectangular parallelepiped shape as a whole, and a double door 5 provided on one surface on the front side of the container main body 3. The container main 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, 15. A pedestal 16 is provided under the lower wall portion 9.

A door opening 17 is formed on one surface on the front side of the container body 3, and the door 5 described above is attached to the door opening 17 so as to be openable and closable. A front wall portion 19 of the container body 3 is formed on the upper portion of 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 two 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 portion 15 on the door opening 17 side.

Inside the vicinity of the left door 21 of the right door 23, a lock rod 35 extending in the vertical direction is provided. A lock mechanism 37 is provided at the lower end of the lock rod 35. When the lock rod 35 rotates, the lock claw on the lock rod 35 side engages with the engaged portion on the container body 3 side to lock the lock rod 35. The rotation of the locking rod 35 is performed by operating the operating lever 39 provided at substantially the center of the right door 23.

When performing the lock operation, 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 by overlapping the edge of the left door 21 on the right door 23 side so as to cover the edge of the right door 23 on the left door 21 side.

Next, the door seal structure will be described.

Each of the container body 3 and the door 5 has 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 composed of, for example, urethane foam.

FIG. 2 is a cross-sectional view taken along the line AA of FIG. As shown in FIG. 2, the left side wall portion 13 includes an outer plate 41, an inner plate 43, and a heat insulating material 45 filled between the outer plate 41 and the inner plate 43. The upper wall portion 7, the lower wall portion 9, the rear wall portion 11, and the right side wall portion 15 of the container body 3 also have the same structure as the left side wall portion 13.

Similarly, the door 5 also includes an outer plate 47, an inner plate 49, and a heat insulating material 51 filled between the outer plate 47 and the inner plate 49. The heat insulating material 51 is formed with a protruding portion 53 in which the outer plate 47 side projects toward the left side in FIG. 2 with respect to the inner plate 49 side. The protruding portion 53 projects in the direction approaching the left peripheral edge in FIG. 2 of the door opening 17. The thickness T1 of the protruding portion 53 is substantially the same as the thickness T2 of the portion where the protruding portion 53 is not formed. T1 + T2 = T is the total thickness of the heat insulating material 51.

The end surface on the side wall portion 13 side of the heat insulating material 51 includes a front surface side end surface 55 corresponding to the protrusion 53 and a back surface side end surface 57 corresponding to a portion where the protrusion 53 is not formed, and a step is formed. .. The front end surface 55 is located on the front surface side of the door 5, and the back surface side end surface 57 is located on the back surface side of the door 5.

The outer edge member 59 is attached to the protrusion 53 provided with the front surface side end surface 55, and the inner edge member 61 is attached to the back surface side end surface 57. The outer edge member 59 and the inner edge member 61 are configured as separate members from each other. The outer edge member 59 is made of metal, for example, aluminum, and the inner edge member 61 is made of resin, for example, made of ASA. The outer edge member 59 and the inner edge member 61 constitute a door edge member 63 as an edge member.

The outer edge member 59 is opposite to the outer surface portion 59a covering the surface of the outer plate 47 located on the surface side of the door 5, the first outer end surface portion 59b covering the surface side end surface 55, and the outer plate 47 of the protruding portion 53. It includes an outer back surface portion 59c that covers the side surface and a second outer back surface portion 59d that covers the back surface side end surface 57. The outer surface portion 59a and the first outer end surface portion 59b are bent at a substantially right angle, the first outer end surface portion 59b and the outer back surface portion 59c are bent at a substantially right angle, and the outer back surface portion 59c and the second outer end surface portion 59d Is bent almost at a right angle. The second outer end surface portion 59d covers a part of the back surface side end surface 57 on the protruding portion 53 side, but may cover almost the entire surface of the back surface side end surface 57.

The inner edge member 61 includes an inner back surface portion 61a that covers the inner plate 49 located on the back surface side of the door 5, and an inner end surface portion 61b that covers the second outer end surface portion 59d of the outer edge member 59. The inner back surface portion 61a and the inner end surface portion 61b are bent at substantially right angles. The inner end face portion 61b covers a portion of the second outer end face portion 59d except for a part on the outer back surface portion 59c side.

The outer surface portion 59a of the outer edge member 59 is screwed into the heat insulating material 51 by the tapping screw 65 and fixed. At this time, an insertion hole for inserting the tapping screw 65 is formed in advance in the outer surface portion 59a and the outer plate 47. The fixing portions by the tapping screws 65 are formed at a plurality of positions along the vertical direction of the door 5 at positions avoiding the hinges 25 and 27.

Similarly, in the inner edge member 61, the inner back surface portion 61a is screwed into the heat insulating material 51 by the tapping screw 67 and fixed. At this time, an insertion hole for inserting the tapping screw 67 is formed in advance in the inner back surface portion 61a and the inner plate 49. The fixing portions by the tapping screws 67 are formed at a plurality of locations along the vertical direction of the door 5.

A seal member 69 is attached to a portion where the second outer end surface portion 59d of the outer edge member 59 and the inner end surface portion 61b of the inner edge member 61 overlap. A second seal member 71 is attached to a corner portion between the first outer end surface portion 59b and the outer back surface portion 59c of the outer edge member 59. The second seal member 71 is located closer to the surface side of the door 5 than the seal member 69. The sealing member 69 and the second sealing member 71 extend along the vertical direction of the door 5 (the direction orthogonal to the paper surface in FIG. 2) and seal between the door 5 and the door opening 17.

As shown in FIG. 3, the seal member 69 includes a flat plate-shaped mounting portion 69a, an inner sealing portion 69b protruding from the end portion of the mounting portion 69a on the inner plate 49 side toward the side wall portion 13, and the mounting portion 69a. The outer seal portion 69c is provided so as to project from the end portion on the outer plate 47 side toward the side wall portion 13. The outer seal portion 69c has a longer protruding length than the inner seal portion 69b. The inner seal portion 69b and the outer seal portion 69c are provided with a hollow portion having a space inside.

A mounting plate 75 is arranged on the surface of the mounting portion 69a opposite to the inner edge member 61. The sealing member 69 is fixed to the door 5 by screwing the tapping screw 77 into the heat insulating material 51 from above the mounting plate 75. At this time, insertion holes for inserting the tapping screws 77 are formed in advance in the mounting plate 75, the mounting portion 69a, the inner end surface portion 61b, and the second outer end surface portion 59d.

The second seal member 71 includes a mounting portion 71a and a flat plate-shaped sealing portion 71b protruding from the mounting portion 71a toward the peripheral edge of the door opening 17. A projecting piece 71c that protrudes toward the back surface side of the door 5 is formed in the vicinity of the mounting portion 71a of the seal portion 71b.

A fitting recess 59f into which the mounting portion 71a of the second seal member 71 is fitted is formed in the corner portion 59e between the first outer end surface portion 59b and the outer back surface portion 59c of the outer edge member 59. The fitting recess 59f is provided with an opening 59g that opens on the side wall portion 13 side in the direction orthogonal to the surface of the first outer end surface portion 59b.

As shown in FIG. 3, the opening 59g is narrower in the thickness direction (vertical direction in FIG. 3) of the seal portion 71b than the fitting recess 59f, so that the mounting portion 71a can be removed from the fitting recess 59f. It is suppressing. The projecting piece 71c is located outside the fitting recess 59f in a state where the mounting portion 71a is fitted into the fitting recess 59f. That is, with the mounting portion 71a fitted in the fitting recess 59f, the neck portion 71h between the mounting portion 71a and the projecting piece 71c enters the opening 59g.

A flat plate-shaped seal mounting portion 59i protruding in the same direction as the seal portion 71b is formed on the surface side of the door 5 with respect to the second seal member 71 of the corner portion 59e of the outer edge member 59. The seal mounting portion 59i is in contact with or close to the seal portion 71b. The tips of the seal portion 71b and the seal mounting portion 59i project toward the side wall portion 13 on the left side in FIG. 2 from the tips of the outer seal portion 69c.

As shown in FIG. 2, a side wall outer edge member 79 is attached to the end portion 45a on the front side (lower side in FIG. 2) of the heat insulating material 45. The side wall outer edge member 79 is made of a metal such as aluminum. The side wall outer edge member 79 includes an end face portion 79a, an outer surface portion 79b that bends rearward from the outer end portion of the end face portion 79a, and an inner side surface portion 79c that bends rearward from the inner end portion of the end face portion 79a. It has.

The outer side surface portion 79b has a first outer surface portion 79b1 that bends at an angle of about 90 degrees with respect to the end face portion 79a, and a second outer surface portion 79b that bends outward from the rear end of the first outer surface portion 79b1 at an angle of about 90 degrees. It includes a surface portion 79b2 and a third outer surface portion 79b3 that bends rearward at an angle of approximately 90 degrees from the outer end portion of the second outer surface portion 79b2. Although not shown, the third outer surface portion 79b3 is fixed to the heat insulating material 45 by, for example, a tapping screw screwed into the heat insulating material 45. At this time, an insertion hole into which the tapping screw is inserted is formed in advance in the third outer surface portion 79b3 and the outer plate 41.

Similarly, the inner side surface portion 79c has a first inner side surface portion 79c1 that bends at an angle of approximately 90 degrees with respect to the end surface portion 79a and approximately 90 degrees from the rear end of the first inner side surface portion 79c1 toward the inside (inside the container). It is provided with a second inner side surface portion 79c2 that bends at an angle of about 90 degrees, and a third inner side surface portion 79c3 that bends at an angle of approximately 90 degrees from the inner end portion of the second inner side surface portion 79c2 toward the rear. The front end 45a of the heat insulating material 45 has a shape corresponding to the shape of the side wall outer edge member 79 described above.

A side wall inner edge member 81 is provided inside the end of the third inner side surface portion 79c3 opposite to the second inner side surface portion 79c2 (on the inner side of the container). The side wall inner edge member 81 and the side wall outer edge member 79 described above constitute the side wall edge member 83. The side wall inner edge member 81 is made of a resin such as ASA. The side wall inner edge member 81 has a first mounting portion 81a attached to the surface of the third inner side surface portion 79c3 and a bent portion 81b that bends from the first mounting portion 81a toward the side opposite to the outer plate 41 at an angle of approximately 90 degrees. And a second mounting portion 81c that bends rearward from the bent portion 81b at an angle of approximately 90 degrees.

Although not shown, the first mounting portion 81a of the side wall inner edge member 81 is fixed to the heat insulating material 45 together with the third inner side surface portion 79c3 of the side wall outer edge member 79 by, for example, a tapping screw screwed into the heat insulating material 45. At this time, insertion holes for inserting tapping screws are formed in advance in the first mounting portion 81a and the third inner side surface portion 79c3. Although not shown, the second mounting portion 81c of the side wall inner edge member 81 is fixed to the heat insulating material 45 by, for example, a tapping screw screwed into the heat insulating material 45. At this time, an insertion hole into which the tapping screw is inserted is formed in advance in the second mounting portion 81c and the inner plate 43.

The first inner side surface portion 79c1 of the inner side surface portion 79c faces the first outer end surface portion 59b of the outer edge member 59 at intervals. Similarly, the third inner side surface portion 79c3 and the first mounting portion 81a face the inner end surface portion 61b of the inner edge member 61 at intervals. The second inner side surface portion 79c2 faces a part of the second seal member 71 on the tip end side of the seal portion 71b.

FIG. 2 shows a seal structure between the side wall portion 13 on the left side of the door 5, but with the side wall portion 15 on the right side of the door 5, between the front wall portion 19, and the lower wall portion 9. The respective seal structures between the doors are basically the same as those in FIG. In the seal member 69, the portions corresponding to the side wall portions 13, 15, the front wall portion 19, and the lower wall portion 9 are separated from each other, and the adjacent ends of the separated seal members 69 are separated from each other. It is in close contact. The same applies to the second seal member 71.

When the door 5 (left door 21) is closed as shown in FIG. 2, the tips of the seal member 69 and the second seal member 71 are in close contact with the side wall edge member 83. More specifically, the outer seal portion 69c of the seal member 69 comes into close contact with the vicinity of the first mounting portion 81a of the third inner side surface portion 79c3 or both the third inner side surface portion 79c3 and the first mounting portion 81a. The inner seal portion 69b of the seal member 69 is in close contact with the periphery of the corner portion between the bent portion 81b and the second mounting portion 81c. The second seal member 71 is in close contact with the second inner side surface portion 79c2.

As a result, the space between the door 5 (left door 21) and the side wall portion 13 is sealed. Between the door 5 (right door 23) and the right side wall portion 15, between the door 5 (left door 21 and right door 23) and the front wall portion 19, and the door 5 (left door 21 and right door 23). The space between the door and the lower wall portion 9 is similarly sealed.

The heat insulating material 51 of the door 5 is formed by forming the front surface side end surface 55 and the back surface side end surface 57 into the same surface, and by removing the back surface side end surface 57 side by machining as shown in FIG. , The shape has a protruding portion 53. In this case, the accuracy of the thickness dimension T1 of the protruding portion 53 located between the outer front surface portion 59a and the outer back surface portion 59c of the outer edge member 59 is easily maintained by machining. Therefore, the protruding portion 53 is attached so as to be sandwiched between the outer front surface portion 59a and the outer back surface portion 59c with almost no gap.

On the other hand, regarding the overall thickness dimension T of the heat insulating material 51 between the outer surface portion 59a of the outer edge member 59 and the inner back surface portion 61a of the inner edge member 61, in order to ensure accuracy by molding, it is necessary to ensure accuracy. It is necessary to improve the accuracy of the mold, which leads to an increase in manufacturing cost. Therefore, in order to keep the manufacturing cost low, the dimensional accuracy of the above-mentioned thickness dimension T varies.

However, in the present embodiment, the inner edge member 61, which is separate from the outer edge member 59, is attached to the heat insulating material 51 on the back surface side of the heat insulating material 51. In this case, the relative mounting positions of the outer edge member 59 and the inner edge member 61 can be changed along the thickness dimension T direction. Specifically, for example, the insertion hole of the tapping screw 77 formed in advance in the inner end surface portion 61b of the inner edge member 61 is an elongated hole long in the thickness direction. Thereby, the inner edge member 61 can be moved and adjusted in the thickness direction of the heat insulating material 51.

By adjusting the movement of the inner edge member 61 in the thickness direction of the heat insulating material 51, the distance between the inner back surface portion 61a and the outer surface portion 59a of the outer edge member 59 can be adjusted to the thickness dimension T of the heat insulating material 51 (to be exact). It can be adjusted to the dimension obtained by adding the thickness of the outer plate 47 and the inner plate 49). As a result, it is possible to prevent a gap from being generated between the outer surface portion 59a of the outer edge member 59 and the outer plate 47, or between the inner back surface portion 61a of the inner edge member 61 and the inner plate 49. Further, it is possible to prevent the heat insulating material 51 from being unnecessarily compressed between the outer front surface portion 59a and the inner back surface portion 61a.

Therefore, when the inner back surface portion 61a of the inner edge member 61 is fixed to the heat insulating material 51 by the tapping screw 67, even if there is a difference in the dimensional tolerance between the heat insulating material 51 and the inner edge member 61, the fixing portions of both members. It is possible to suppress the generation of residual stress in. As a result, damage such as cracks around the fixed portion of the heat insulating material 51 due to the tapping screw 67 can be suppressed, and durability is improved.

At that time, in the present embodiment, the second outer end surface portion 59d of the outer edge member 59 and the inner end surface portion 61b of the inner edge member 61 are in a direction perpendicular to the end surface facing the side wall portion 13 of the left door 21. It overlaps with. In this case, by moving the inner end surface portion 61b with respect to the second outer end surface portion 59d along the contact surfaces with each other, it is possible to easily respond to the change in the thickness dimension T of the heat insulating material 51.

In the present embodiment, the seal member 69 is attached to a portion where the second outer end surface portion 59d and the inner end surface portion 61b overlap. In this case, the seal member 69 can be fastened together with the outer edge member 59 and the inner edge member 61 by using the tapping screw 77. This simplifies the work of attaching the seal member 69, the outer edge member 59, and the inner edge member 61 to the heat insulating material 51.

In this embodiment, the second seal member 71 is attached to the outer edge member 59 between the surface of the left door 21 and the seal member 69. In this case, since the second seal member 71 is located inside the surface of the left door 21, the second seal member 71 is less likely to be exposed to direct sunlight or the like, and the weather resistance is improved. Since the seal member 69 is located further inside than the second seal member 71, it is less likely to be exposed to direct sunlight or the like, and the weather resistance is further improved.

Since the seal member 69 and the second seal member 71 are located inside the surface of the left door 21, it is possible to suppress the turning of the seal member as in the case where the seal member is located on the surface of the door, and the door seal structure is reliable. Improves sex.

The sealing structure between the left door 21 and the left side wall portion 13 shown in FIG. 2 is also applied between the right door 23 and the lower wall portion 9 shown in FIG. In this case, the seal member 69 and the second seal member 71 are located inside the surface of the door 5, and a gap 85 is formed between the outer edge member 59 and the side wall edge member 83 on the side wall portion 13 side. The door. The portion where the lock claw of the lock mechanism 37 shown in FIG. 1 and the engaged portion engage with each other can be exposed at the portion corresponding to the gap 85, and the locked state can be easily confirmed from the outside. When the seal member is provided on the surface of the door, the seal member covers the engaging portion of the lock mechanism 37, and cannot be confirmed from the outside.

In the present embodiment, the outer edge member 59 includes a seal mounting portion 59i that projects in a direction approaching the peripheral edge of the door opening 17, and the second seal member 71 is mounted on the back surface side of the door of the seal mounting portion 59i. There is. In this case, the second seal member 71 is protected from direct sunlight from the outside of the door 5 by the seal mounting portion 59i, so that the weather resistance is further improved.

In this embodiment, the outer edge member 59 is made of metal and the inner edge member 61 is made of resin. By making the outer edge member 59 made of metal, which is less likely to deteriorate than the one made of resin, a long life can be achieved and the rigidity of the door 5 is also improved. By making the inner edge member 61 made of resin having lower thermal conductivity than that made of metal, it becomes difficult for the cold air inside the container to escape to the outside, and the reliability as a container for refrigeration or freezing is improved.

In the present embodiment, the end surface of the left door 21 is formed at a position separated from the front surface side end surface 55 located on the surface side of the left door 21 and the peripheral edge of the door opening 17 from the surface side end surface 55, and the left door 21 It has a back surface side end surface 57 located on the back surface side of the door. The front surface side end surface 55 is formed at the tip of a protrusion 53 that projects toward the peripheral edge of the door opening 17 with respect to the back surface side end surface 57. The outer edge member 59 is attached to the protrusion 53, and the inner edge member 61 is attached to the back surface side end surface 57 and the back surface side inner plate 49.

In this case, by attaching the seal member 69 to the back surface side end surface 57, a part of the door surface side is covered by the protruding portion 53 and the outer edge member 59. As a result, the seal member 69 is protected from direct sunlight from the outside of the door 5 by the projecting portion 53 and the outer edge member 59, so that the weather resistance is further improved.

Although the embodiments of the present invention have been described above, these embodiments are merely examples described for facilitating the understanding of the present invention, and the present invention is not limited to the embodiments. The technical scope of the present invention is not limited to the specific technical matters disclosed in the above-described embodiment, but also includes various modifications, modifications, and alternative technologies that can be easily derived from the specific technical matters.

For example, when the outer edge member 59, the inner edge member 61, and the seal member 69 are attached to the heat insulating material 51, tapping screws 65, 67, 77 are used, but a fixing method using other fasteners or the like is applied. You may.

The heat insulating material 51 includes a protrusion 53 and has a step formed on the end face, but the heat insulating material 51 may not have a step. That is, the front surface side end surface 55 and the back surface side end surface 57 may be the same surface. In this case, for example, it is conceivable that the outer edge member 59 has an L-shaped cross section like the inner edge member 61.

Regarding the superposition of the second outer end face portion 59d of the outer edge member 59 and the inner end face portion 61b of the inner edge member 61, the second outer end face portion 59d is on the seal member 69 side and the inner end face portion 61b is on the back surface side end face 57 side. It may be located in.

The outer edge member 59 and the side wall outer edge member 79 are not limited to aluminum and may be made of other metals, or may be made of other materials such as resin. The inner edge member 61 and the side wall inner edge member 81 are not limited to ASA, but may be made of other resin, or may be made of other material such as metal.

In the above-described embodiment, the aviation container is described as an example, but the present invention is not limited to the aviation container, and the present invention can be applied to, for example, a container for a ship or a truck (freight vehicle).

1 Container 3 Container body 5 Door 17 Door opening 53 Protruding part 55 Surface side end face (end face)
57 Back side end face (end face)
59 Outer edge member 59a Outer surface part 59d Second outer end face part (outer end face part)
59i Seal mounting part 61 Inner edge member 61a Inner back surface 63 Door edge member (edge member)
69 Seal member 71 Second seal member

Claims (4)

With the container body
A door that opens and closes the door opening of the container body,
An edge member attached so as to cover both the front and back surfaces and the end surface of the peripheral edge of the door,
It has a sealing member that is attached to the edge member and seals between the door and the door opening when the door is closed with respect to the door opening.
The edge member includes an outer edge member located outside the door and an inner edge member configured as a member separate from the outer edge member and located inside the door.
The outer edge member includes an outer surface portion that covers the surface side of the door and an outer end face portion that covers the end face of the door.
The inner edge member includes an inner back surface portion that covers the back surface side of the door and an inner end surface portion that covers the end surface of the door.
The outer edge member is made of metal, and the inner edge member is made of resin.
The outer end face portion and the inner end face portion overlap in a direction perpendicular to the end face of the door .
The seal member is attached to a portion where the outer end face portion and the inner end face portion overlap.
The outer end face portion, the inner end face portion, and the seal member are overlapped in order from the end face of the door toward the peripheral edge of the door opening, and the outer end face portion, the inner end face portion, and the seal member are fastened. A container door seal structure characterized by being fastened by members. The door seal structure for a container according to claim 1 , wherein a second seal member is attached to the outer edge member between the surface of the door and the seal member. The outer edge member includes a seal mounting portion that projects in a direction approaching the peripheral edge of the door opening, and the second seal member is mounted on the back surface side of the door of the seal mounting portion. The container door seal structure according to claim 2. The end surface of the door is formed at a position on the front surface side end surface of the door and a position away from the peripheral edge of the door opening from the front surface side end surface, and is a back surface side end surface located on the back surface side of the door. And have
The front surface side end surface is formed at the tip of a protruding portion that projects toward the peripheral edge of the door opening with respect to the back surface side end surface.
The outer edge member is attached to the protrusion and
The door seal structure for a container according to any one of claims 1 to 3 , wherein the inner edge member is attached to the back surface side end surface and the back surface of the door.

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