JP6989933B2 - Transport container with lid - Google Patents

Description

The present invention relates to a foldable transport container with a lid.

Patent Document 1 describes a conventional foldable container. In this container, the heat insulating property of the entire container is enhanced by forming each part by using a heat insulating material and a heat insulating structure panel having a heat insulating space.

Japanese Unexamined Patent Publication No. 3-289439

Since the conventional container described above has a structure in which the panels constituting each part are foldably connected to each other, a gap is likely to be generated between the panels, and the heat insulating property is likely to be deteriorated by ventilation through the gap.

It is an object of the present invention to provide a foldable transport container with a lid capable of exhibiting high heat insulation.

The transport container with a lid according to the uniform state of the present invention includes a bottom plate, a mouth frame located above the bottom plate, a lid plate mounted so as to close the opening of the mouth frame, and the bottom plate and the mouth frame. It is a transport container provided with four side plates provided so as to stand up between the bottom plate, the lid plate, and the four side plates, each of which has a heat insulating sheet. The side plates consist of a pair of rocking plates that are swingably connected to the mouth frame, and a pair of folding plates that are connected to the bottom plate and the mouth frame so that the entire side plate can be bent in a dogleg shape. Each bent plate is erected from the upper edge portion so as to seal the ventilation space generated between the upper edge portion provided so as to be rotatably fitted to the mouth frame and the mouth frame. It has a covered part and a covered part.

Further, the transport container with a lid according to another aspect of the present invention includes a bottom plate, a mouth frame located above the bottom plate, a lid plate mounted so as to close the opening of the mouth frame, and the bottom plate. A transport container provided with four side plates provided so as to stand up from the mouth frame, and the bottom plate, the lid plate, and the four side plates each have a heat insulating sheet. The four side plates are a pair of rocking plates oscillatingly connected to the mouth frame, and a pair of folds connected to the bottom plate and the mouth frame so as to be entirely bent in a dogleg shape. It is composed of a curved plate, and the side end portion of each rocking plate has a first contact surface provided so as to contact a part of the bent plate and seal airflow, and another portion of the bent plate. The first contact surface and the second contact surface have a second contact surface provided so as to be in contact with the air, and the second contact surface is provided with each other in the thickness direction of each rocking plate. Located at a distance.

INDUSTRIAL APPLICABILITY The present invention has an effect that it is possible to provide a transport container with a foldable lid capable of exhibiting high heat insulating properties.

FIG. 1 is a perspective view showing the entire transport container with a lid according to the first embodiment. FIG. 2 is a perspective view showing a part of the same transport container with a lid. FIG. 3 is a partially broken perspective view showing an enlarged portion A of FIG. 2. FIG. 4 is a partially broken perspective view showing an enlarged portion B of FIG. 2. FIG. 5 is a perspective view showing another part of the same transport container with a lid. FIG. 6 is a partially broken perspective view showing the portion C of FIG. 5 in an enlarged manner. FIG. 7 is a plan view showing a bottom plate included in the same transport container with a lid. FIG. 8 is a perspective view showing a rocking plate included in the same transport container with a lid. FIG. 9 is a perspective view of the same rocking plate as viewed from the inside. FIG. 10 is a perspective view showing the same rocking plate in an exploded manner. FIG. 11 is a plan view showing a locking member included in the rocking plate of the same. FIG. 12 is a perspective view showing a bent plate included in the same transport container with a lid. FIG. 13 is a perspective view showing the bent plate of the same as above in an exploded manner. FIG. 14 is a plan view of the inner frame of the bent plate of the same. FIG. 15 is a horizontal cross-sectional view showing a state in which the rocking plate and the bent plate of the same are in contact with each other. FIG. 16 is a side view showing a main part of a modified example of the transport container with a lid as described above.

(Embodiment 1)
The transport container with a lid according to the first embodiment will be described with reference to FIGS. 1 to 16. Each direction used in the following description is based on the assembled state of the container.

As shown in FIG. 1, the transport container with a lid of the present embodiment closes the rectangular plate-shaped bottom plate 1, the rectangular frame-shaped mouth frame 2 located above the bottom plate 1, and the opening of the mouth frame 2. It is provided with a lid plate 3 detachably attached to the bottom plate 1 and four side plates 4 attached between the bottom plate 1 and the mouth frame 2. A heat insulating sheet 9 is provided on each of the plates 1, 3 and 4 constituting the cubic container (see FIGS. 1, 2, 5, etc.).

The four side plates are composed of a pair of rocking plates 5 mainly composed of a synthetic resin plate material and a pair of bent plates 6 mainly composed of a synthetic resin plate material.

Each bent plate 6 is rotatably connected to the mouth frame 2 and rotatably connected to the lower frame 11 of the bottom plate 1. Each folding plate 6 has a structure that can be bent inward in a dogleg shape. The rocking plate 5 has a structure that is rotatably connected to the mouth frame 2 and rotatably engaged and disengaged from the lower frame 11.

The heat insulating sheet 9 has, for example, a structure in which an aluminum film is laminated on a plate material made of foamed resin, but a sheet having an appropriate structure can be used as long as it has heat insulating properties.

Hereinafter, each configuration of the transport container with a lid of the present embodiment will be described in more detail.

(Bottom plate)
As shown in FIGS. 5 and 7, the bottom plate 1 integrally has a bottom plate main body 10 made of synthetic resin constituting the main body and a lower frame 11 made of synthetic resin provided on the peripheral edge of the bottom plate main body 10. On the upper surface of the bottom plate main body 10, a rectangular recess 101 in a plan view capable of accommodating a rectangular heat insulating sheet 9, four hooking portions 102, and two hooking portions 103 are provided. There is. The four hooking portions 102 are portions on which the four corner portions of the heat insulating sheet 9 housed in the recess 101 are respectively hooked. The two hooking portions 103 are portions on which the pair of long side portions of the heat insulating sheet 9 are hooked. The heat insulating sheet 9 is hooked on the hooking portions 102 and 103, so that the heat insulating sheet 9 is prevented from coming off from the recess 101. The bottom plate 1 is a portion that is easily soiled, but since the heat insulating sheet 9 is only hooked on the bottom plate 1, it is easy to remove and wipe the heat insulating sheet 9 or replace the heat insulating sheet 9.

The lower frame 11 integrally has a pair of long side frames 111 to which the pair of bent plates 6 are rotatably connected, and a short side frame 112 to which the pair of rocking plates 5 are respectively locked. A plurality of support shaft portions 113 project upward from the long side frame 111. The lower edge portion 69 of the bent plate 6 is rotatably connected to each support shaft portion 113, so that the bent plate 6 is rotatably connected to the lower frame 11.

The heat insulating sheet 9 is located substantially flush with the peripheral edge portion 105 surrounding the recess 101 on the upper surface of the bottom plate main body 10 in a state of being housed in the recess 101.

Each of the four hooking portions 102 has an L-shaped outer shape in a plan view. Each hooking portion 102 extends flush with the peripheral edge portion 105 so as to cover the four corner portions of the recess 101. Each hooking portion 102 does not have to be L-shaped in a plan view, and may be composed of, for example, a pair of linear pieces extending in directions orthogonal to each other. Further, a step may be formed between each hook portion 102 and the peripheral edge portion 105.

Each hooking portion 103 extends flush with the peripheral edge portion 105 and has a linear outer shape in a plan view. A step may be formed between each hooking portion 103 and the peripheral portion 105.

However, if the upper surfaces of the hooked portions 102 and 103 and the peripheral surface portions 105 are connected to each other flush with each other, there is an advantage that the contents are not easily tilted and that the contents are prevented from being caught in the step. ..

(Mouth frame)
The mouth frame 2 is made of synthetic resin, and a pair of short side frames 21 to which a pair of rocking plates 5 are rotatably connected and a pair of lengths to which a pair of bent plates 6 are rotatably connected to each other. The side frame 22 is integrally provided.

A plurality of support shaft portions 23 project downward from each long side frame 22 (see FIG. 2). A protrusion 602 (see FIG. 12 and the like) integrally provided on the upper edge portion 60 of the bent plate 6 is rotatably inserted into each support shaft portion 23, and the upper edge portion 60 of the bent plate 6 is opened. By being rotatably connected to the frame 2, the bent plate 6 is rotatably connected to the mouth frame 2.
To.

(Cover plate)
As shown in FIG. 1 and the like, the lid plate 3 is formed in a rectangular plate shape using a synthetic resin. On the upper surface of the lid plate 3, a recess 31 capable of accommodating the heat insulating sheet 9 for the lid is provided. In a state where the heat insulating sheet 9 is housed in the recess 31, the four corner portions of the heat insulating sheet 9 are respectively locked to the lid plate 3 by the triangular locking member 35.

(Shaking plate)
8 to 11 show the whole or a part of the rocking plate 5.

The rocking plate 5 is mainly composed of a rectangular plate material 59 made of synthetic resin. A recess 51 capable of storing the rectangular heat insulating sheet 9 is provided on the inner surface of the plate material 59 (the surface facing the storage space at the time of assembly). In a state where the heat insulating sheet 9 is housed in the recess 51, the four corner portions of the heat insulating sheet 9 are respectively locked to the plate material 59 by the triangular locking member 55.

Specifically, as shown in FIG. 10, through holes 95 are formed in each of the four corners of the heat insulating sheet 9, and in the recesses 51, the portions corresponding to the through holes 95 on a one-to-one basis are provided. The protruding rib 512 is formed. With the heat insulating sheet 9 housed in the recess 51, the four protruding ribs 512 are fitted into the corresponding through holes 95. The protruding rib 512 has a rectangular frame-like shape in which four long pieces are connected, but the shape is not limited to this, and for example, the four long pieces may be separated from each other.

As shown in FIG. 11, the locking member 55 includes a protrusion 552 provided so as to fit into the central hole of the protrusion rib 512 and two elastic pieces provided so as to be elastically hooked on the plate member 59. It has 554 integrally. The protrusion 552 fits into the central hole of the protruding rib 512 fitted into each through hole 95 of the heat insulating sheet 9, and the elastic piece with respect to the groove 514 (see FIG. 10) provided on the side surface of the recess 51. When the 554 is elastically hooked, the locking member 55 is attached to the plate member 59.

As shown in FIG. 8, at the side end portion 50 of the rocking plate 5 (that is, the side end portion of the plate material 59), the first contact surface 501 and the second contact surface 502 are separated from each other with a step 505 interposed therebetween. Is located.

Both the first contact surface 501 and the second contact surface 502 are provided in a straight line in the vertical direction. Both the first contact surface 501 and the second contact surface 502 are formed flat and elongated so as to be orthogonal to the thickness direction of the rocking plate 5, and are parallel to each other.

The first contact surface 501 and the second contact surface 502 are located at a distance from each other in the thickness direction of the rocking plate 5. The first contact surface 501 is located outside the second contact surface 502 (the side away from the storage space).

As will be described later, both the first contact surface 501 and the second contact surface 502 are portions that abut on the side end portions of the adjacent bent plates 6 to enhance the airtightness of the storage space.

(Bent board)
12-14 show the whole or a part of the folding plate 6. The folding plate 6 has a structure that can be folded in half in a dogleg shape as a whole.

The folded plate 6 includes a frame 63 made of synthetic resin, an inner frame 64 also made of synthetic resin, and a rectangular heat insulating sheet 9 sandwiched between the frame 63 and the inner frame 64.

The frame 63 includes an upper frame 631 and a lower frame 632 rotatably connected to the upper frame 631. The upper frame 631 and the lower frame 632 are connected so as to be bent in a dogleg shape inward as a whole.

The inner frame 64 includes an upper inner frame 641 and a lower inner frame 642.

The upper inner frame 641 is detachably attached to the upper frame 631 with the upper half of the heat insulating sheet 9 sandwiched between the upper inner frame 641 and the upper frame 631. Specifically, a plurality of through holes 97 are formed in the upper half of the heat insulating sheet 9, and a locking piece 633 is formed in each of the upper frames 631 where one-to-one correspondence with the through holes 97 is formed. Has been done. With the locking piece 633 fitted in each through hole 97, a plurality of locking pieces 643 (see FIG. 14) provided on the upper inner frame 641 are elastic on a one-to-one basis with the corresponding locking piece 633. Lock to.

The lower inner frame 642 is detachably attached to the lower frame 632 with the lower half of the heat insulating sheet 9 sandwiched between the lower inner frame 642 and the lower frame 632. The specific structure in which the lower inner frame 642 is mounted on the frame 632 is the same as the above-mentioned structure in which the upper inner frame 641 is mounted on the frame 631.

The heat insulating sheet 9 attached to the folding plate 6 is formed with a straight folding line portion 91 so as to be bent inward in a dogleg shape. The folded line portion 91 is formed, for example, by providing a groove in the central portion of the heat insulating sheet 9 by hot pressing, or by sewing the central portion of the heat insulating sheet 9 with a thread. The upper half and the lower half of the heat insulating sheet 9 are partitioned by the folding line portion 91 as a boundary.

As shown in FIG. 1, an opening 635 is formed in the frame 63 so as to expose a partial region A1 in the center of the heat insulating sheet 9 to the outside. The opening 635 is an opening formed between the upper frame 631 and the lower frame 632 and has a horizontally long hexagonal opening edge in the assembled state of the container.

More specifically, the upper frame 631 has a horizontally long long piece 6314 mounted from the outside so as to cover the upper end portion of the heat insulating sheet 9, and extends downward from both ends of the long piece 6314 in the horizontal direction. A pair of connecting pieces 6315 to be provided are provided. The lower frame 632 has a horizontally long long piece 6324 mounted from the outside so as to cover the lower end of the heat insulating sheet 9 and a pair of connecting pieces extending upward from both ends of the long piece 6324 in the horizontal direction. The piece 6325 is provided. The upper frame 631 and the lower frame 632 are rotatably connected by rotatably connecting the vertically opposed connecting pieces 6315 and the tip portions of the connecting pieces 6325.

The opening edge of the opening 635 is the lower end edge of the long piece 6314 of the upper frame 631, the opposite side edge of the pair of connecting pieces 6315 of the upper frame 631, and the length of the lower frame 632. The upper end edge of the piece 6324 and the side end edges of the pair of connecting pieces 6325 of the lower frame 632 that face each other are connected to each other in a hexagonal shape.

A partial region A1 of the heat insulating sheet 9 exposed to the outside by the opening 635 is a region including a folded line portion 91 and a portion around the folded line portion 91, and this region is a portion that swells when the heat insulating sheet 9 is bent in a dogleg shape. Is. Therefore, if the opening 635 is not formed, there is a problem that the bent plate 6 is difficult to break, and there is a problem that a load is applied to the heat insulating sheet 9 due to repeated bending work and the heat insulating sheet 9 is easily damaged.

On the other hand, when the central partial region A1 of the heat insulating sheet 9 is opened to the outside by the opening 635, the bent plate 6 is easily broken, and the heat insulating sheet 9 is damaged by repeated bending work. It becomes difficult.

When only a part of the folded line portion 91 of the heat insulating sheet 9 is not exposed by the opening 635 (for example, the end portion of the folded line portion 91 is covered with the frame 63, and the other portion is exposed through the opening portion 635. In the case), the heat insulating sheet 9 is liable to be damaged at the boundary between the exposed portion and the other portion. Therefore, it is preferable that at least the entire folded line portion 91 is exposed through the opening portion 635.

Further, in the transport container with a lid of the present embodiment, a corner having a sharp edge shape at an angle α is formed at the horizontal end of the opening 635. The edge of this corner is formed by connecting the side edge edges of the upper and lower connecting pieces 6315 and 6325 in a <(>) shape. The angle α of the corner portion is an angle smaller than 180 °, and more preferably an obtuse angle. When the angle α is an acute angle, the bent heat insulating sheet 9 tends to bite into the edge of the corner of the opening 635, and the heat insulating sheet 9 tends to be damaged.

The upper edge portion 60 of the bent plate 6 connected to the mouth frame 2 is composed of an upper frame 631 and an upper edge portion of the inner frame 641. A plurality of upper edge protrusions 601 project upward from the upper edge portion of the upper frame 631 (see FIG. 2 and the like). The plurality of upper edge protrusions 601 are located at a distance from each other in the horizontal direction. The protrusion 602 rotatably connected to the mouth frame 2 projects in the horizontal direction from the upper edge protrusion 601.

A plurality of cover portions 61 project upward from the upper edge portion of the inner frame 641. Each cover portion 61 is located so as to cover a part of the space between the adjacent upper edge protrusions 601 from the inside (see FIG. 12). In the horizontal direction, the upper edge protrusion 601 and the cover portion 61 are alternately positioned.

As shown in FIG. 2, in a state where the bent plate 6 and the mouth frame 2 are connected, the support shaft portion 23 protruding downward from the mouth frame 2 has a plurality of upper edge protrusions protruding upward from the bent plate 6. It is located in the space between the sections 601. Each cover portion 61 is located below the support shaft portion 23 protruding from the mouth frame 2. Each cover portion 61 functions to seal the ventilation in the space between the adjacent upper edge protrusions 601 in cooperation with the support shaft portion 23 when the container is in the assembled state (FIG. 2). , See Figure 3). Sealing the airflow here is not limited to completely sealing the airflow. In the transport container with a lid of the present embodiment, by providing each cover portion 61 on the bent plate 6 instead of the mouth frame 2, it is possible to prevent each cover portion 61 from interfering with the rotational operation of the bent plate 6. ing.

In addition, in the transport container with a lid of the present embodiment, the first vertical ribs 65 and the second vertical ribs 66, which are long vertically, are provided at the side ends of the bent plate 6 (see FIG. 12 and the like). The first vertical rib 65 is located on the outer side (the side away from the storage space) of the second vertical rib 66. The first vertical rib 65 and the second vertical rib 66 are parallel to each other.

The first vertical rib 65 is configured so that the first contact surface 501 formed on the rocking plate 5 comes into contact with the first vertical rib 65 (see FIG. 15). The second vertical rib 66 is configured so that the second contact surface 502 formed on the rocking plate 5 comes into contact with the second vertical rib 66. As a result, the heat insulating effect by blocking the ventilation between the rocking plate 5 and the bent plate 6 in two stages, and the distance of the ventilation path due to the presence of the first contact surface 501 and the second contact surface 502. The heat insulating effect due to the lengthening can be obtained. Further, the presence of the first contact surface 501 and the second contact surface 502 suppresses the deformation of the rocking plate 5, and the presence of the first vertical rib 65 and the second vertical rib 66 (reinforcing effect of the rib) causes bending. Deformation of the plate 6 is suppressed, so that a heat insulating effect can be obtained because a gap is unlikely to occur between the rocking plate 5 and the bent plate 6.

In addition, in the transport container with a lid of the present embodiment, in order to further suppress the formation of a ventilation space between the bent plate 6 and the mouth frame 2, the upper surface of the upper edge protrusion 601 of the bent plate 6 is further suppressed. Therefore, a long linear rib 603 is projected in the horizontal direction (see FIG. 4).

Here, the long side frame 22 of the mouth frame 2 has an inner partition wall 225 and an outer partition wall 226, and a hollow portion provided between both partition walls 225 and 226 is released downward.

In the assembled state of the container, the rib 603 of the bent plate 6 is located in the hollow portion of the long side frame 22 and is located in contact with or close to the inner partition wall 225 to suppress ventilation. Demonstrate.

In addition, in the transport container with a lid of the present embodiment, in order to suppress the formation of a ventilation space between the bent plate 6 and the lower frame 11, the lower frame 11 is horizontal from the upper surface of the support shaft portion 113. A linear rib 115 that is long in the direction is projected (see FIG. 6).

In the assembled state of the container, the rib 115 of the lower frame 11 is located below the lower edge portion 69 of the bent plate 6. The rib 115 exhibits a function of suppressing ventilation by being in contact with or close to the lower surface of the lower edge portion 69.

Since the transport container with a lid of the present embodiment has each of the above-described configurations, the container as a whole exhibits high heat insulating properties (cold insulation and heat insulation functions). In particular, when the sheet-shaped cold insulating material (not shown) is fixed to the lid plate 3 or when the cold insulating material is placed on the mouth frame 2, the container as a whole can exhibit a high cold insulating function.

(Modification example)
Although the transport container with a lid of this embodiment has been described above, the transport container with a lid is not limited to this embodiment.

For example, in the transport container with a lid of the present embodiment, the inner frame 641 on the upper side of the bent plate 6 and the cover portion 61 are integrally molded, and the heat insulating sheet 9 is attached by combining this with the frame 631. The upper frame 631 and the cover portion 61 are integrally molded, and the inner frame 641 is combined with the heat insulating sheet 9 to be attached, or the upper frame 631 and the cover portion 61 are integrally molded, whereas the inner frame 641 is integrally molded. It is also possible to attach the heat insulating sheet 9 by using an appropriate locking member instead of the frame 641 (that is, without the inner frame 641). It is also possible to integrally mold the upper frame 631, the inner frame 641 and the cover portion 61. Similarly, on the lower side of the folding plate 6, the lower frame 632 and the inner frame 642 can be integrally molded.

When the upper frame 631 and the cover portion 61 (or the inner frame 641) are integrally molded, it is difficult to integrally mold the protrusions 602 (see FIG. 12 and the like) due to the convenience of the mold. For example, it is preferable to form a portion corresponding to the protrusion 602 by inserting a separate resin pin (not shown).

Further, in the transport container with a lid of the present embodiment, the entire heat insulating sheet 9 is covered from the outside by the plate material 59 formed so as to have sufficient bending rigidity and impact resistance, but the structure of the plate material 59 is this. Any injection molded product, press plate, or the like can be used as long as it covers at least a part of the heat insulating sheet 9 and has a structure having predetermined bending rigidity and impact resistance.

Further, in the transport container with a lid of the present embodiment, the opening 635 of the frame 63 of the bent plate 6 is provided in a hexagonal shape, but the shape of the opening 635 is not limited to this, and at least the folded wire portion 91 is provided. Any shape may be used as long as the partial region A1 including the above is exposed to the outside. Therefore, for example, the edge shape of the horizontal end portion of the opening 635 may not be <shaped, but may have an appropriate curved shape.

Further, in the transport container with a lid of the present embodiment, the side edge of each connecting piece 6315 of the upper frame 631 (a portion constituting a part of the opening edge of the opening 635) is provided in a straight line. , As in the modified example shown in FIG. 16, it is also possible to provide each connecting piece 6315 with an inwardly overhanging portion 6317. Also in this case, in order to expose the entire folded line portion 91 to the outside, the overhanging portion 6317 is formed so as to avoid the end portion of the folded line portion 91.

In the modified example of FIG. 16, each connecting piece 6325 having the lower frame 632 is similarly provided with an overhanging portion 6327 overhanging inward. The overhanging portion 6327 is also formed so as to avoid the end portion of the folded line portion 91.

Here, the corners of the upper and lower overhanging portions 6317 and 6327 have a sharp outer shape at an angle β. When the angle β is a right angle or an acute angle, the bent heat insulating sheet 9 bites into the corners of the overhanging portions 6317 and 6327 and is easily damaged. Therefore, the angle β is preferably an obtuse angle. Further, in order to suppress the bite of the heat insulating sheet 9, the corners of the upper and lower overhanging portions 6317 and 6327 are smoothly chamfered (that is, the peripheral edges of the corner portions of the overhanging portions 6317 and 6327 are formed by a smooth convex curve. ) Is also preferable.

Further, in the transport container with a lid of the present embodiment, the heat insulating sheet 9 is detachably provided on each of the plates 1, 3 and 4, but at least a part of the heat insulating sheet 9 is provided by means such as insert molding. It is also possible to have a structure covered with plates 1, 3 and 4.

Further, it is also possible to attach another sheet material by heat welding or the like so as to cover the heat insulating sheet 9 with the heat insulating sheet 9 attached to each of the plates 1, 3 and 4. In this case, there is an advantage that a gap is less likely to be formed around the heat insulating sheet 9, the accumulation of dew condensation water around the heat insulating sheet 9 is suppressed, and the waterproof property when washing the container with water is improved. be.

It is possible to make appropriate design changes and to appropriately combine known techniques with respect to other configurations included in the transport container with a lid of the present embodiment.

(effect)
As described above, as described with reference to the attached drawings, the transport container with a lid of the present embodiment is mounted so as to close the opening of the bottom plate 1, the mouth frame 2 located above the bottom plate 1, and the mouth frame 2. It is provided with a lid plate 3 and four side plates 4 provided so as to stand between the bottom plate 1 and the mouth frame 2. The bottom plate 1, the lid plate 3, and the four side plates 4 each have a heat insulating sheet 9.

In the transport container with a lid of the present embodiment, the four side plates 4 are a pair of rocking plates 5 swingably connected to the mouth frame 2 and a bottom plate 1 so as to be bent in a dogleg shape as a whole. It is composed of a pair of folding plates 6 connected to the mouth frame 2. Each bent plate 6 is erected from the upper edge portion 60 so as to seal the ventilation space generated between the upper edge portion 60 provided so as to be rotatably fitted to the mouth frame 2 and the mouth frame 2. It has a covered cover portion 61.

Therefore, according to the transport container with a lid of the present embodiment, each rocking plate 5 and each folding plate 6 can be operated to compactly fold the entire container, so that the contents can be transported to the destination. After it becomes empty, it can be folded for collection, storage, etc., and space can be saved. In the transport container with a lid of the present embodiment, the ventilation space generated between the upper edge portion 60 of each bent plate 6 and the mouth frame 2 is sealed by the cover portion 61, so that the container as a whole has high heat insulation. It can exhibit its properties (cold insulation and heat insulation functions).

In addition, in the transport container with a lid of the present embodiment, each folding plate 6 sandwiches at least a part of the heat insulating sheet 9 between the frame 63 provided so as to be bent in a dogleg shape and the frame 63. Further has an inner frame 64. The cover portion 61 is integrally molded with the inner frame 64.

Therefore, according to the transport container with a lid of the present embodiment, the frame 63 and the inner frame 64 are formed and the heat insulating sheet 9 is sandwiched therein, which is a simple operation, and is a highly heat insulating bent plate having a cover portion 61. 6 can be formed efficiently.

Further, in the transport container with a lid, the side end portion 50 of each rocking plate 5 is provided so as to abut on a part of the bent plate 6 (first vertical rib 65) to seal the ventilation. It has a contact surface 501 and a second contact surface 502 provided so as to abut on another portion (second vertical rib 66) of the bent plate 6 to seal airflow. The first contact surface 501 and the second contact surface 502 are located at a distance from each other in the thickness direction of each rocking plate 5.

Therefore, according to the transport container with a lid of the present embodiment, a ventilation space is generated between the rocking plate 5 and the bent plate 6, and the bent plate at the first contact surface 501 of the rocking plate 5 is prevented. The contact with the 6 and the contact with the bent plate 6 at the second contact surface 502 can be sealed in two steps. Further, the location of the first contact surface 501 and the second contact surface 502 increases the distance between the ventilation passages and enhances the heat insulating property. As a result, the container as a whole can exhibit high heat insulating properties (cold insulation and heat insulation functions).

Further, in the transport container with a lid of the present embodiment, the heat insulating sheet 9 has a folded line portion 91 that is bent in a dogleg shape. Each folding plate 6 further has a frame 63 configured to be bent in a dogleg shape together with the heat insulating sheet 9. The frame 63 is formed with an opening 635 that exposes a part of the region A1 including the broken line portion 91 of the heat insulating sheet 9.

Therefore, according to the transport container with a lid of the present embodiment, the portion of the heat insulating sheet 9 that swells when bent is opened to the outside through the opening 635, so that the folded plate 6 is easy to fold. In addition, it is possible to prevent the heat insulating sheet 9 from being damaged by repeated folding operations.

Further, in the transport container with a lid of the present embodiment, a plate material 59 is provided on the outer surface of each rocking plate 5 so as to cover a part or all of the heat insulating sheet 9.

Therefore, according to the transport container with a lid of the present embodiment, the flexural rigidity and impact resistance of the entire rocking plate 5 can be ensured by the plate material 59, so that the rocking plate 5 can be folded when the entire container is folded. Can be operated by tapping from the outside.

1 Bottom plate 2 Mouth frame 3 Cover plate 4 Side plate 5 Swing plate 50 Side end 501 First contact surface 502 Second contact surface 59 Plate material 6 Folded plate 60 Upper edge part 61 Cover part 63 Frame 635 Opening 64 Inside Frame 65 First vertical rib (part)
66 Second vertical rib (separate part)
9 Insulation sheet 91 Folded wire part A1 Partial area

Claims (1)

With the bottom plate
The mouth frame located above the bottom plate and
A lid plate attached so as to close the opening of the mouth frame,
A transport container comprising four side plates provided so as to stand up between the bottom plate and the mouth frame.
The bottom plate, the lid plate, and the four side plates each have a heat insulating sheet.
The four side plates are a pair of rocking plates that are swingably connected to the mouth frame, and a pair of folding plates that are connected to the bottom plate and the mouth frame so that the entire side plate can be bent in a dogleg shape. Consists of
Each folding board
The upper edge and
A cover portion erected from the upper edge portion so as to seal the ventilation space generated between the mouth frame and the upper edge portion,
It has a protrusion provided on the upper edge portion, and has.
The upper edge portion is rotatably connected to the mouth frame by rotatably inserting the protrusion into the support shaft portion protruding downward from the mouth frame.
The cover portion is a transport container with a lid, which is located below the support shaft portion protruding from the mouth frame .

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