JP7359445B2 - container - Google Patents

Description

The present invention relates to a container having a heat insulating member.

Conventionally, heat-insulating containers having a heat-insulating member between an inner member and an outer member have been widely used. The container disclosed in Patent Document 1 is formed by injecting a foamable heat insulating member into a space between an inner member and an outer member.

Japanese Patent Application Publication No. 9-202365

When a foamable heat insulating member is injected into the space between the inner member and the outer member, there is a risk that the foamable heat insulating member may leak from the ends of the inner member and the outer member. Therefore, in the conventional container described above, the ends of the inner member and the outer member are joined by welding or the like. However, if a foaming heat insulating material is filled with the ends of the inner and outer members joined together, it becomes difficult for gas generated by the foaming of the heat insulating material to escape to the outside of the container. may hinder. In addition, if gas, etc. does not escape to the outside of the container and remains in the space between the inner and outer members, it becomes difficult to spread the insulation material to every corner, leading to a decrease in the container's cold and heat retention properties. There is a fear.

One aspect of the present invention is to provide a container that can prevent a situation in which gas generated by foaming of a heat insulating member becomes difficult to escape to the outside of the container or a situation in which it becomes difficult to spread the heat insulating member to every corner. The purpose is to realize this.

A container according to aspect 1 of the present invention includes an inner member including a bottom wall portion and side wall portions extending upward from each side portion of the bottom wall portion, and an outer member into which the inner member is fitted. a heat insulating member filled in a space between the inner member and the outer member; and a heat insulating member made of a breathable and flexible material, the heat insulating member being filled between the inner member and the outer member. a leak suppressing member provided in a state of being pressed by the inner member and the outer member around the area where the leak suppressing member contacts the leak suppressing member on at least one of the inner member and the outer member; In this configuration, a notch portion is provided in a part of the contacting area so that the distance between the inner member and the outer member is larger than in other areas.

According to the above configuration, the area between the inner member and the outer member filled with the heat insulating member can be covered with the leakage suppressing member. Further, a notch portion is provided in a part of the region of at least one of the inner member and the outer member that comes into contact with the leakage suppressing member so that the distance between the inner member and the outer member is larger than the other region. ing. That is, in the part where the notch is provided, the amount of pressure applied by the leak suppression member is low, making it easier for gas to pass through, and in the part without the notch, the amount of pressure applied by the leak suppression member is high, making it difficult for gas to pass through. Therefore, while the leakage suppressing member suppresses the leakage of the heat insulating member to the outside from the space between the inner member and the outer member, it is possible to make it easier for gas generated when the heat insulating member foams to escape from the notch. can. Therefore, it is possible to prevent a situation in which gas generated by foaming of the heat insulating member becomes difficult to escape to the outside of the container, or a situation in which it becomes difficult to spread the heat insulating member to every corner.

In the container according to aspect 2 of the present invention, in the above aspect 1, the inner member includes an inner member horizontal wall extending horizontally outward from the side wall portion, and an inner member opposing wall extending downward from the inner member horizontal wall. The outer member has an outer member opposing wall that faces the inner member opposing wall at an inner side than the inner member opposing wall when the inner member is fitted, and the outer member has an outer member opposing wall that faces the inner member opposing wall at an inner side than the inner member opposing wall. The suppressing member is arranged between at least one of the inner member horizontal wall and the upper end of the outer member opposing wall and between the inner member opposing wall and the outer member opposing wall. Good too.

According to the above configuration, in a state where the inner member and the outer member are fitted, the outer member opposing wall is provided inside the inner member opposing wall. Further, the leakage suppressing member is disposed between at least one of the upper end portion of the inner member horizontal wall and the outer member opposing wall, or between the inner member opposing wall and the outer member opposing wall.

Therefore, even if the heat insulating material filled in the space between the inner member and the outer member leaks beyond the wall facing the outer member, it will be hidden by the wall facing the inner member, making it difficult to see the leaked heat insulating material from the outside of the container. Become.

In the container according to aspect 3 of the present invention, in the above aspect 2, the outer member has an outer member horizontal wall extending horizontally outward from the outer member opposing wall, and the inner member and the outer member are fitted together. In the assembled state, the lower end portion of the inner member facing wall may be in contact with or close to the horizontal surface of the outer member horizontal wall.

According to the above configuration, even if the heat insulating member filled in the space between the inner member and the outer member crosses the wall facing the outer member and further progresses to the vicinity of the lower end of the wall facing the outer member, the leakage of the heat insulating member progresses to near the lower end of the wall facing the outer member. , the leaking insulation material can be stopped by the horizontal wall of the outer member. Furthermore, since the lower end of the inner member facing wall contacts or is close to the horizontal surface of the outer member horizontal wall, horizontal movement of the heat insulating member held by the outer member horizontal wall is suppressed. Therefore, it is possible to prevent the heat insulating member from protruding from the container.

In the container according to aspect 4 of the present invention, in any one of aspects 1 to 3 above, the thickness of the leakage suppressing member when the container is not pressed by the inner member and the outer member is The depth may be greater than the depth of the notch.

According to the above configuration, the pressed leakage suppressing member can be provided in the notch without any gaps. Therefore, it is possible to prevent the heat insulating member from protruding from the container.

In the container according to aspect 5 of the present invention, in any one of aspects 1 to 4 above, the notch portion includes a bottom surface, and the notch portion extends outward from both ends of the bottom surface as it goes upward, sandwiching the bottom surface. A configuration may also be adopted in which it is formed by a pair of inclined surfaces extending from one side to the other.

According to the above configuration, the pressed leakage suppressing member can be provided in the notch without any gaps. Therefore, it is possible to prevent the heat insulating member from protruding from the container.

In the container according to aspect 6 of the present invention, in any one of aspects 1 to 5 above, one of the inner member and the outer member is molded from a resin that has an adhesive effect with the heat insulating member. , the other may have an engaging portion that engages with the heat insulating member on a surface facing the space filled with the heat insulating material.

According to the above configuration, either the inner member or the outer member is bonded to the filled heat insulating member. Moreover, the other side that is not bonded to the heat insulating member has an engaging portion that engages with the heat insulating member on the surface facing the space filled with the heat insulating member. That is, by simply filling the space between the inner member and the outer member with the heat insulating member, either the inner member or the outer member is bonded to the heat insulating member, and the other is engaged with the heat insulating member through the engagement portion. , the inner member and the outer member can be joined. Therefore, in the step after filling the space between the inner member and the outer member with the heat insulating member, the step of joining the inner member and the outer member can be omitted, and the production efficiency of the container can be improved. Furthermore, since there is no need to use additional joining parts, production costs can be reduced.

According to one aspect of the present invention, it is possible to prevent a situation in which gas generated by foaming of a heat insulating member becomes difficult to escape to the outside of the container, or a situation in which it becomes difficult to spread the heat insulating member to every corner. .

It is a perspective view of a container concerning this embodiment. FIG. 2 is a perspective view showing a longitudinal section of the container according to the present embodiment when cut in the longitudinal direction. They are a perspective view (upper figure) of an inner member in a container according to the present embodiment, and a perspective view (lower figure) with the inner member turned upside down. A perspective view (upper figure) of the outer member of the container according to the present embodiment, a perspective view (lower figure) with the outer member lying down, and an enlarged view (middle figure) of the flow regulating portion of the outer member. be. They are an enlarged view of the broken line portion of the notch (lower left view) and an enlarged view of the broken line portion of the engagement portion (lower right view) according to the present embodiment. FIG. 3 is an enlarged cross-sectional view taken along the line AA of the container according to the present embodiment. They are an enlarged BB sectional view (left figure) and a CC enlarged sectional view (right figure) of the broken line portion shown in FIG. 6. A perspective view (upper figure) showing a state in which the container according to the present embodiment is placed on a stand 101, a perspective view (middle view) showing a state inverted vertically from this state, and a perspective view showing the stand 101. It is a diagram. They are a perspective view (upper view) showing a state in which a part of the upper surface of the container according to the present embodiment is covered with one lid, and a perspective view (lower view) showing a state in which the containers are stacked one on top of the other. FIG. 7 is an enlarged view showing a modification of the arrangement position of the notch according to the present embodiment. FIG. 10 is an enlarged DD sectional view (left figure) and an EE enlarged sectional view (right figure) of the broken line portion shown in FIG. 10 in a modification regarding the arrangement position of the notch according to the present embodiment. .

Hereinafter, one embodiment of the present invention will be described in detail. FIG. 1 is a perspective view of a container 1 of this embodiment. FIG. 2 is a perspective view showing a longitudinal section of the container 1 taken in the longitudinal direction. FIG. 3 is a perspective view (upper view) of the inner member 2 of the container 1, and a perspective view (lower view) of the inner member 2 with the inner member 2 turned upside down. FIG. 4 shows a perspective view of the outer member 3 in the container 1 (upper figure), a perspective view of the outer member 3 in a face down state (lower figure), and an enlarged view of the flow regulating portion of the outer member 3 (middle figure). Figure). In addition, in the cross-sectional view of FIG. 2, in order to make the internal structure of the container 1 easier to understand, the description of the heat insulating member 4 on the left half of the drawing is omitted, and the description of the heat insulating member 4 on the right half is shown in light black. There is.

(Summary of container 1)
As shown in FIGS. 1 and 2, the container 1 includes a bottom wall portion that is substantially rectangular in plan view, and side wall portions (inner member side wall portions 22) extending upward from each side portion of the bottom wall portion. It has an inner member 2 and an outer member 3 into which the inner member 2 is fitted.

Further, the container 1 has a heat insulating member 4 filled in the space between the inner member 2 and the outer member 3. The container 1 also includes a leakage suppressing member 5 that is provided around the area between the inner member 2 and the outer member 3 in which the heat insulating member 4 is filled, and is pressed by the inner member 2 and the outer member 3. (See Figures 6 and 7).

Here, the leak suppressing member 5 is provided around the area filled with the heat insulating member 4 between the inner member 2 and the outer member 3, but the leak suppressing member 5 is provided in the area filled with the heat insulating member 4. This does not preclude a configuration in which That is, the leak suppression member 5 may be provided in a region filled with the heat insulating member 4, or the leak suppressing member 5 may be provided around the region filled with the heat insulating member 4 between the inner member 2 and the outer member 3. When the heat insulating member 4 is provided between the inner member 2 and the outer member 3, it is also permissible that the heat insulating member 4 is provided so as to protrude into the region filled with the heat insulating member 4.

In this embodiment, the leakage suppressing member 5 is provided around the area between the inner member 2 and the outer member 3 where the heat insulating member 4 is filled, The structure may be such that the heat insulating member 4 is provided in a part of the periphery of the region filled with the heat insulating member 4.

That is, the leak suppression member 5 is partially provided between the inner member 2 and the outer member 3, and the inner member 2 and the outer member 3 are joined without any gap in the portion where the leak suppression member 5 is not provided. It may also be a configuration where Further, in the portion where the leakage suppressing member 5 is not provided, the inner member 2 and the outer member 3 may be in contact with each other without any gap. Furthermore, the portion where the leakage suppressing member 5 is not provided may include a portion where the inner member 2 and the outer member 3 contact and a portion where they are joined.

Furthermore, when molding the inner member 2 and the outer member 3, there may be slight differences in the size of the inner member 2 or the outer member 3 even if they are the same product due to molding conditions, molding environment, etc. A gap may be formed around the region filled with the heat insulating member 4 between the outer member 3 and the outer member 3 . Even in such a case, the leakage suppressing member 5 can close the gap between the inner member 2 and the outer member 3 around the area where the heat insulating member 4 is filled, and the heat insulating member 4 can close the gap between the inner member 2 and the outer member 3. leakage can be suppressed.

In other words, the leakage suppressing member 5 plays a role of closing the gap between the inner member 2 and the outer member 3 around the region filled with the heat insulating member 4.

Further, the container 1 has a discharge portion through hole 11 that passes through the bottom wall. The discharge portion through hole 11 is fastened from above and below with a cylindrical bolt and a corresponding nut. A cylindrical bolt hole (hereinafter referred to as a discharge port) is closed by a stopper 6 (details will be described later).

The inner member 2 and the outer member 3 are vacuum formed or injection molded. Therefore, for example, the inner member 2 can be vacuum formed and the outer member 3 can be injection molded, or the inner member 2 can be injection molded and the outer member 3 can be vacuum formed.

The heat insulating member 4 is formed of, for example, a foam made of a resin such as urethane that can be injection foam molded. Alternatively, it may be formed of a foam made of a resin that can be formed by in-mold bead foaming, such as a polyolefin resin or a styrene resin. The leakage suppressing member 5 is a member that allows air to pass through but does not allow the foamed molding material that becomes the heat insulating member 4 to pass through, and is made of, for example, sponge and has breathability and flexibility.

(Summary of inner member 2)
As shown in FIG. 3, the inner member 2 includes a bottom wall portion 21, an inner member side wall portion 22, and an inner upper frame portion 24, and has a container shape. The bottom wall portion 21 has an inner through hole 23 in the center thereof that passes through the bottom wall portion 21 .

The inner member side wall portions 22 are formed such that a pair of opposing sides each extend upward from the side portions of the bottom wall portion 21 .

The inner member side wall portion 22 has a lid receiving portion 241 formed from a horizontal surface extending horizontally outward from the upper edge of the inner member side wall portion 22 . The lid receiving portion 241 has a flat surface provided in an annular shape along the upper edge of the inner member side wall portion 22, and the lid 7 (details will be described later) is placed on this flat surface. Two positioning parts 245 are formed on the left and right short sides of the lid receiving part 241, respectively, and project upward. The positioning section 245 defines the placement position of each lid 7.

Further, the inner member side wall portion 22 has an inner wall 242 extending upward from the horizontally outer end of the lid receiving portion 241. The inner wall 242 may have a length approximately equal to the thickness of the lid 7 in the height direction, and the inner wall 242 prevents the lid 7 from moving in the horizontal direction when the lid 7 is placed on the lid receiver 241. regulate.

The inner member side wall portion 22 also includes an inner member horizontal wall 243 formed of a horizontal plane extending horizontally outward from the upper edge of the inner wall 242 and an inner member opposing side wall 243 extending downward from the outer end of the inner member horizontal wall 243. It has a wall 244.

The inner upper frame portion 24 is formed by the lid receiving portion 241, the inner wall 242, the inner member horizontal wall 243, and the inner member opposing wall 244.

In addition, in this embodiment, the inner member side wall part 22 has the structure which has the lid receiving part 241 and the inner wall 242, but it is good also as a structure which does not have the lid receiving part 241 and the inner wall 242. When the inner member side wall portion 22 does not have the lid receiving portion 241 and the inner wall 242, the inner member horizontal wall 243 extends horizontally outward from the upper edge of the inner member side wall portion 22. Therefore, the inner upper frame portion 24 is formed above the inner member side wall portion 22 by the inner member horizontal wall 243 and the inner member opposing wall 244. Moreover, when setting it as the structure which does not have the lid receiving part 241 and the inner wall 242, the horizontal surface of the inner member horizontal wall 243 is used instead of the lid receiving part 241. Thus, the lid 7 is placed on the inner member horizontal wall 243.

(Summary of outer member 3)
As shown in FIG. 4, the outer member 3 includes a bottom wall portion 31, an outer member side wall portion 32, and an outer upper frame portion 33, and has a container shape like the inner member 2. The inner member 2 is fitted inside the outer member 3. The outer member 3 has an outer through hole 311 passing through the bottom wall portion 31 at a position facing the inner through hole 23 of the inner member 2 . The outer through hole 311 and the inner through hole 23 constitute the discharge section through hole 11 .

Further, as shown in FIG. 4, an injection part 36 is formed near one end in the longitudinal direction of the bottom wall part 31 of the outer member 3, and an end of the injection part 36 on the back surface side of the outer member 3. The portion serves as an injection port 361 of the heat insulating member 4. The injection port 361 is closed with a cap. A flow regulating portion 362 of the heat insulating member 4 is formed around the injection portion 36 on the inner surface of the outer member 3.

As shown in FIG. 4, the flow regulating portion 362 has a shape in plan view that is open on the side opposite to the formation position of the flow regulating portion 362, that is, the side opposite to the one side in the longitudinal direction of the bottom wall portion 31 of the outer member 3. has, for example, a V-shaped or U-shaped vertical wall shape. The upper end portion of the flow regulating portion 362 may be in contact with the bottom wall portion 21 of the inner member 2.

A stand-compatible recess 37 is formed on the back surface of the outer member 3. When the container 1 is placed on the stand 101 shown in FIG. 8, the upper part of the stand 101 fits into the stand corresponding recess 37.

[Outer member stepped portion 34]
Further, as shown in FIGS. 2 and 4, the outer member 3 has an outer member step portion 34 provided in an annular shape below the outer member side wall portion 32.

The outer member stepped portion 34 has a shape that is recessed one step inward from the outer peripheral surface of the outer member side wall portion 32, and the cross-sectional shape in a longitudinal section when the container 1 is cut in the longitudinal direction and the transverse direction is the lid receiving portion. It is molded into a hook shape that follows the surface shape of 241.

In other words, the outer member stepped portion 34 is formed into a shape that can be placed on the surface of the lid receiving portion 241. The outer member step portion 34 has a recessed portion 35 on the short side thereof, which is formed by recessing the outer member step portion 34 upward to the extent of the thickness of the positioning portion 245 . The recessed portion 35 comes into contact with the positioning portion 245 of the lower container 1 when the containers 1 are stacked vertically.

[Outer member side wall portion 32 and outer upper frame portion 33]
Next, the outer member side wall portion 32 and the outer upper frame portion 33 will be explained using FIGS. 2 and 4. As shown in FIGS. 2 and 4, the outer member side wall portions 32 are formed such that a pair of opposing sides extend upward from the side portions of the bottom wall portion 31, respectively.

Further, the outer member side wall portion 32 is provided horizontally in the long side direction on the lower side of the outer member side wall portion 32, and has an engaging portion 334 that projects inward from the outer member side wall portion 32. There is. Details of the engaging portion 334 will be described later. The outer member side wall portion 32 has an outer upper frame portion 33 at the upper edge of the outer member side wall portion 32 .

The outer upper frame portion 33 is a frame that protrudes laterally outward from the vertical plane of the outer member side wall portion 32 and is provided along the outer circumferential surface of the outer member side wall portion 32.

The outer upper frame portion 33 has an outer member facing wall 331 and an outer member horizontal wall 332. Further, the outer member facing wall 331 is provided with a notch 333 at the upper edge of the outer member facing wall 331 . Details of the notch portion 333 will be described later.

[Outer member facing wall 331]
The outer member facing wall 331 is provided at a position facing the inner member facing wall 244 inside the inner member facing wall 244 when the inner member 2 is fitted.

Therefore, even if the heat insulating member 4 filled in the space between the inner member 2 and the outer member 3 leaks beyond the outer member facing wall 331, the leaked heat insulating member 4 is hidden by the inner member facing wall 244. It becomes difficult to see from the outside of the container 1.

Note that the leakage suppressing member 5 is preferably provided a predetermined distance above the lowermost end of the inner member facing wall 244. The predetermined distance above means, for example, that the leak suppression member 5 is provided above the intermediate position of the inner member facing wall 244.

By providing the leakage suppressing member 5 a predetermined distance above the lowermost end of the inner member facing wall 244, it is possible to improve the effect that the leaking heat insulating member 4 becomes difficult to see from the outside of the container 1.

[Outer member horizontal wall 332]
The outer member horizontal wall 332 is provided to extend horizontally outward from the outer member opposing wall 331. Specifically, the outer member horizontal wall 332 is provided to extend outward in the horizontal direction from between the lower end of the outer member opposing wall 331 and the upper edge of the outer member side wall 32.

Note that the outer member horizontal wall 332 provided on the shorter side of the outer member side wall portion 32 extends outward longer than the longer side. That is, the outer member horizontal wall 332 on the longer side has a smaller protrusion amount than the outer member horizontal wall 332 on the shorter side. This is to ensure a space for placing the stopper 6 on the outer member horizontal wall 332 provided on the short side. Details regarding the placement of the stopper 6 will be described later.

Further, as shown in FIG. 2, when the inner member 2 and the outer member 3 are fitted together, the lower end portion of the inner member opposing wall 244 is in contact with or close to the horizontal surface of the outer member horizontal wall 332. As a result, even if the heat insulating member 4 filled in the space between the inner member 2 and the outer member 3 exceeds the outer member facing wall 331 and the leakage of the heat insulating member 4 progresses below the outer member facing wall 331, The leaking heat insulating member 4 can be stopped by the outer member horizontal wall 332.

Furthermore, since the lower end of the inner member facing wall 244 contacts or is close to the horizontal surface of the outer member horizontal wall 332, horizontal movement of the heat insulating member 4 held by the outer member horizontal wall 332 is suppressed. Therefore, it is possible to prevent the heat insulating member 4 from protruding from the container 1.

Next, the notch portion 333 and the engaging portion 334 of the outer member 3 will be described using FIGS. 5, 6, and 7. FIG. 5 is an enlarged view of the broken line portion of the notch portion 333 (lower left view) and an enlarged view of the broken line portion of the engaging portion 334 (lower right view). FIG. 6 is an enlarged cross-sectional view taken along the line AA of the container 1 according to this embodiment. FIG. 7 is an enlarged cross-sectional view along line BB (left figure) and CC (right figure) of the broken line portion shown in FIG. In detail, the BB enlarged cross-sectional view (left figure) in FIG. This is a cross section of a portion where the portion 333 is not provided. Note that the light black portion in FIG. 7 represents the heat insulating member 4.

[Notch 333]
The cutout portion 333 is provided at the upper edge of the outer member facing wall 331, as shown in FIGS. 5 and 6. The cutout portion 333 is formed by a bottom surface 3331 and a pair of inclined surfaces 3332 that sandwich the bottom surface 3331 and extend outward from both ends of the bottom surface 3331 toward the top.

Specifically, as shown in FIG. 6, the cross-sectional shape of the notch 333 taken along the line AA is a trapezoidal shape in which the upper base is longer than the lower base. Moreover, the notch portion 333 is provided in a part of the region that contacts the leakage suppressing member 5 so that the distance between the inner member 2 and the outer member 3 is larger than in other regions. That is, the distance between the inner member 2 and the outer member 3 in the region where the cutout portion 333 is provided is longer than the distance h between the inner member 2 and the outer member 3 in the region where the cutout portion 333 is not provided. It is provided so that the distance h' from the

Here, the leak suppression member 5 is provided between the inner member horizontal wall 243 and the upper end of the outer member facing wall 331, as shown in FIGS. 6 and 7. That is, the region that contacts the leakage suppressing member 5 is a region between the surface of the inner member horizontal wall 243 that faces the outer member opposing wall 331 and the upper edge of the outer member opposing wall 331.

Therefore, when the notch 333 is provided in a part of the area that contacts the leakage suppressing member 5, the distance between the inner member 2 and the outer member 3 is the same as the distance between the inner member 2 and the outer member 3. The area between the surface of the inner member horizontal wall 243 facing the outer member opposing wall 331 and the upper edge of the outer member opposing wall 331 is larger than the area where the inner member horizontal wall 243 is not provided.

In addition, in the example shown in FIG. 5 etc., although the inclined surface 3332 has a planar shape, it is not limited to this. For example, the inclined surface may be formed by a surface including a curved and chamfered portion. Further, the ridgeline formed by the bottom surface and the inclined surface of the notch portion 333 may have a chamfered shape. The chamfered shape is formed by cutting off the edge, and the surface shape thereof may be a cut surface or a rounded surface.

Further, at least one notch 333 may be provided at the upper edge of the outer member facing wall 331, and the number thereof is not limited. Further, in this embodiment, the notch portion 333 is formed by a bottom surface 3331 and an inclined surface 3332, but the cutout portion 333 is formed by a curved shape such that the cross-sectional shape in the AA arrow view is a semicircular inner surface shape. may have been done. More specifically, the cross-sectional shape of the bottom surface 3331 is a downwardly convex semicircle, and the cross-sectional shape of the connecting portion between the inclined surface 3332 and the upper edge of the outer member facing wall 331 is a partially chamfered shape. It's okay.

Further, in this embodiment, although it is provided on the long side of the outer member opposing wall 331, it may be provided on the shorter side of the outer member opposing wall 331, and It may be provided on both the long side and the long side.

Further, the cutout portion 333 may be provided in the inner member 2 instead of the outer member 3, or may be provided in both the outer member 3 and the inner member 2. When providing the notch 333 in the inner member 2, the notch 333 may be provided at a position facing the upper edge of the outer member facing wall 331 on the inner member horizontal wall 243, for example.

Note that the leakage suppressing member 5 used has a depth greater than the depth of the notch 333 in a state where it is not pressed by the inner member 2 and the outer member 3. More specifically, when the inner member 2 and the outer member 3 are fitted, the surface of the inner member horizontal wall 243 facing the outer member facing wall 331 and the notch 333 provided in the outer member facing wall 331 A distance larger than the distance between the bottom surface 3331 and the bottom surface 3331 is used. Thereby, the pressed leakage suppressing member 5 can be provided in the notch 333 without any gaps, as shown in the AA cross-sectional view of FIG. Therefore, it is possible to prevent the heat insulating member 4 from protruding from the container 1.

[Engaging part 334]
The engaging portion 334 is provided on the outer member side wall portion 32, as shown in FIG. In this embodiment, a total of four engaging portions 334, two engaging portions 334, are provided on each of the outer member side wall portions 32 on the opposing long sides.

The engaging portion 334 is provided on the lower side of the outer member side wall portion 32 to be horizontally elongated in the long side direction, and protrudes inward from the outer member side wall portion 32. Therefore, when the space between the inner member 2 and the outer member 3 is filled with the heat insulating member 4, the engaging portion 334 provided on the outer member side wall portion 32 facing the space filled with the heat insulating member 4 and the filling The heat insulating member 4 that hardens later engages with the heat insulating member 4. When the engaging portion 334 engages with the heat insulating member 4 that has solidified after filling, the engaging portion 334 restricts vertical movement of the outer member 3 in relation to the heat insulating member 4 .

In addition, although the engaging part 334 has a horizontally long plate-like shape in this embodiment, the shape of the engaging part 334 is not limited to this. For example, the shape of the engaging portion 334 may be a gourd shape or a wave shape. Further, by providing a groove in the outer member side wall portion 32 and allowing the heat insulating member 4 to flow into the groove, vertical movement of the outer member 3 in relation to the heat insulating member 4 may be restricted.

Further, in this embodiment, the engaging portion 334 is provided on the outer member side wall portion 32 on the longer side of the outer member 3, but the engagement portion 334 is not limited thereto. For example, the engaging portion 334 may be provided on the outer member side wall portion 32 on the shorter side of the outer member 3, or may be provided on all of the four outer member side wall portions 32 and the four inner member side wall portions 22. good.

(Injection of heat insulating member 4)
The heat insulating member 4 is created by placing the container 1 with no heat insulating member 4 in a face down state, and injecting the foamed molding material that will become the heat insulating member 4 from the injection port 361, thereby creating a gap between the inner member 2 and the outer member 3. It flows into space, expands, and is formed. In this case, since the container 1 has the flow regulating part 362, the foamed molding material is difficult to suddenly flow between the inner member side wall part 22 and the outer member side wall part 32 on the side closer to the injection part 36. That is, the foamed molding material spreads between the bottom wall 21 of the inner member 2 and the bottom wall 31 of the outer member 3, and then flows between the four inner member side walls 22 and the outer member side walls 32. .

At this time, the foamed molding material foams in the space between the inner member 2 and the outer member 3, but the gas generated by the foaming of the foamed molding material is absorbed by the notch provided in the side wall 32 of the outer member. It passes from the part 333 to the outside of the container 1 via the leakage suppressing member 5.

Thereby, the foamed molding material can be filled substantially evenly into every corner of the space between the inner member 2 and the outer member 3, and the heat insulating member 4 can be formed uniformly. Note that it is preferable to fill the container 1 with the foamed molding material by lifting the container 1 diagonally so that the injection port 361 side is slightly higher. After forming the heat insulating member 4, the injection port 361 is covered with a cap.

(Joining of inner member 2 and outer member 3)
Next, the joining between the inner member 2 and the outer member 3 will be explained. In this embodiment, the inner member 2 is molded from a resin that has an adhesive effect with the heat insulating member 4. Examples of the resin that has an adhesive effect with the heat insulating member 4 include polyolefin resins such as polyethylene and polypropylene, ABS resins, AES resins, PVC resins, and PS resins.

When the space between the inner member 2 and the outer member 3 is filled with the heat insulating member 4, the inner member 2 and the heat insulating member 4 undergo a chemical reaction and adhere to each other. can be prevented from coming off from the heat insulating member 4. Moreover, the rigidity of the inner member 2 is increased by adhering the inner member 2 to the heat insulating member 4.

Then, the engaging portion 334 provided on the outer member side wall portion 32 facing the space filled with the heat insulating member 4 engages with the heat insulating member 4 that has hardened after filling, so that the outer member 3 engage with. That is, the inner member 2 and the outer member 3 can be joined by simply filling the space between the inner member 2 and the outer member 3 with the heat insulating member 4.

Therefore, in the step after filling the space between the inner member 2 and the outer member 3 with the heat insulating member 4, the step of joining the inner member 2 and the outer member 3 can be omitted, and the production efficiency of the container 1 can be improved. can be improved. Furthermore, since there is no need to use additional joining parts, production costs can be reduced.

In addition, in this embodiment, the inner member 2 is molded with a resin that has an adhesive effect with the heat insulating member 4, but the outer member 3 may be molded with a resin that has an adhesive effect with the heat insulating member 4. . In that case, by configuring the inner member 2 to include the engaging portion 334, it is possible to achieve the same effects as this embodiment. Furthermore, both the inner member 2 and the outer member 3 may be molded from a resin that has an adhesive effect with the heat insulating member 4.

Furthermore, even if the inner member 2 or outer member 3 is not molded with a resin that has an adhesive effect with the heat insulating member 4, surface treatment of the inner member 2 or outer member 3 can improve the adhesive effect with the heat insulating member 4. It may also be configured to obtain. That is, by subjecting the inner member 2 or the outer member 3 to surface treatment, the inner member 2 or the outer member 3 is modified, thereby chemically reacting with the heat insulating member 4 and adhering to the heat insulating member 4. By doing so, there is no need to change the raw material itself for the inner member 2 or the outer member 3, and manufacturing costs can be reduced. Note that both the inner member 2 and the outer member 3 may be surface-treated. Further, the surface treatment is performed by a commonly used method.

Further, by utilizing the fact that the volume of the heat insulating member 4 expands due to foaming of the heat insulating member 4, pressure is applied in the direction in which the inner member facing wall 244 and the outer member facing wall 331 face each other after filling the heat insulating member 4. is added. Then, the heat insulating member 4 filled between the inner member facing wall 244 and the outer member facing wall 331 presses the inner member facing wall 244 and the outer member facing wall 331, and the inner member 2 and the outer member 3 are separated. It can also be expected to have the effect of suppressing this.

In addition, when joining the inner member 2 and the outer member 3, the discharge part through hole 11 provided on the bottom wall side of the inner member 2 and the outer member 3 is connected with a bolt and a nut having a shape corresponding to the bolt. This is hereby concluded. The bolt has a cylindrical shape corresponding to the discharge part through hole 11 and has a male thread formed on its outer peripheral surface, and the nut has a female thread formed on its inner peripheral surface corresponding to the male thread. The bolt also serves as an outlet.

Next, the placement of the stopper 6 and the usage state of the container 1 will be explained using FIG. 8. FIG. 8 is a perspective view (upper view) showing a state in which the container 1 is placed on the stand 101, a perspective view (middle view) showing a state in which the container 1 is turned upside down, and a perspective view showing the stand 101. It is a diagram.

(Placement of plug 6)
As shown in FIG. 8, one end of a chain 61 (connecting member) is connected to the stopper 6, and the other end of the chain is attached to a predetermined location on the outer upper frame portion 33 of the outer member 3. The predetermined location is, for example, an opening 62 (see FIG. 9) having a smaller diameter than the outer diameter of the stopper 6 provided on the short side of the outer member horizontal wall 332, and a rib extending downward from the vicinity of the opening 62. Attach it to etc. Further, the stopper 6 is placed on the opening 62. In addition, the attachment position of the chain is not limited to the outer member horizontal wall 332, and may be, for example, an extension portion extending laterally outside the accommodation space that is the inside of the container 1.

(Usage status of container 1)
As shown in FIG. 8, the container 1 is normally used by being placed on a stand 101. In this case, the upper part of the stand 101 fits into the stand-compatible recess 37 of the container 1, so that the container 1 does not move laterally on the stand 101 and can maintain a stable state. When the container 1 is placed on the stand 101, the upper part of the stand 101 is located under the cap that closes the injection port. Thereby, the stand 101 can prevent the cap from coming off.

Next, the structure in which the container 1 is provided with the lid 7 and the state in which the containers 1 are stacked will be described using FIG. 9. FIG. 9 is a perspective view (upper view) showing a state in which a part of the upper surface of the container 1 is closed with a single lid 7, and a perspective view (lower view) showing a state in which the containers 1 are stacked one on top of the other. be. Note that the light black portion in FIG. 9 (lower diagram) represents the heat insulating member 4.

(Configuration where container 1 is equipped with lid 7)
As shown in FIG. 9, the container 1 includes a lid 7. Although FIG. 9 shows a state in which a portion of the top surface of the container 1 is covered with one lid 7, the entire top surface of the container 1 can also be covered with the lid 7. In this embodiment, when covering the entire upper surface of the container 1 with the lid 7, three lids 7 are used.

When the entire upper surface of the container 1 is covered with three lids 7, the position of each lid 7 can be easily determined by the positioning part 245. Further, the top surface can be covered with an appropriate number of lids 7 depending on the purpose and environment in which the container 1 is used. Further, the number of divisions of the lid 7 is not limited to this, and can be changed as appropriate. The container 1 is arranged on the stand 101 and can contain, for example, ice water and drinking bottles or cans.

(Stacking 1 container on top of another)
Next, stacking of the containers 1 will be explained. As shown in FIG. 9, the containers 1 can be stacked vertically. Specifically, the outer member step portion 34 and the lid receiving portion 241 provided on the container 1 are provided at positions facing each other when the containers 1 are stacked vertically.

Moreover, the recessed part 35 of the outer member step part 34 and the positioning part 245 are provided at positions facing each other when the containers 1 are stacked up and down. Therefore, when the containers 1 are stacked vertically, the outer member stepped portion 34 of the upper container 1 and the lid receiving portion 241 of the lower container 1 fit together, and the upper container 1 is horizontally stacked. Movement will be regulated.

Further, the recessed portion 35 has a shape in which the outer member stepped portion 34 is recessed upward to the extent of the thickness of the positioning portion 245, and when the containers 1 are stacked vertically, the recessed portion 35 is formed in the positioning portion 245 of the lower container 1. come into contact with Therefore, when the containers 1 are stacked, a gap approximately the thickness of the positioning part 245 is created on the short side of the container 1 other than the positioning part 245, and the chain 61 can be passed through the gap. Therefore, the containers 1 can be stacked on top with the plug 6 attached to the outlet of the container 1 located below.

(Main advantages of container 1)
As described above, in the container 1 of this embodiment, the gap between the inner member 2 and the outer member 3 around the region filled with the heat insulating member 4 can be closed with the leakage suppressing member 5. Further, a part of the area of at least one of the inner member 2 and the outer member 3 that contacts the leakage suppressing member 5 is cut so that the distance between the inner member 2 and the outer member 3 is larger than the other area. A notch 333 is provided.

That is, in the part where the notch part 333 is provided, the amount of pressure of the leak suppression member 5 is low, making it easy for gas to pass through, and in the part without the notch part 333, the amount of pressure of the leak suppression member 5 is high, making it difficult for gas to pass through. Therefore, while the leakage suppressing member 5 suppresses the leakage of the heat insulating member 4 to the outside from the space between the inner member 2 and the outer member 3, the gas generated when the heat insulating member 4 is foamed, etc. from the notch 333 is suppressed. can be easily removed. Therefore, it is possible to prevent a situation in which gas generated by foaming of the heat insulating member 4 becomes difficult to escape to the outside of the container 1, or a situation in which it becomes difficult to spread the heat insulating member 4 to every corner.

Furthermore, even if the heat insulating member 4 filled in the space between the inner member 2 and the outer member 3 leaks beyond the outer member facing wall 331, the leaked heat insulating material is hidden by the inner member facing wall 244. It becomes difficult to see from the outside of 1.

Furthermore, in the process after filling the space between the inner member 2 and the outer member 3 with the heat insulating member 4, the step of joining the inner member 2 and the outer member 3 can be omitted, increasing the production efficiency of the container 1. can be improved. Furthermore, since there is no need to use additional joining parts, production costs can be reduced.

[Modified example]
Modifications of the present invention will be described below. For convenience of explanation, members having the same functions as the members described in the above embodiment are given the same reference numerals, and the description thereof will not be repeated.

FIG. 10 is an enlarged view showing a modification regarding the arrangement position of the notch portion 333. FIG. 11 is an enlarged DD sectional view (left figure) and an EE enlarged sectional view (right figure) of the broken line portion shown in FIG. 10 in a modification regarding the arrangement position of the notch 333 . In detail, the DD enlarged cross-sectional view (left figure) in FIG. This is a cross section of a portion where the portion 80 is provided. Note that the light black portion in FIG. 11 represents the heat insulating member 4.

In the embodiment, the notch 333 was provided at the upper edge of the outer member facing wall 331, as shown in FIGS. 5, 6, and 7. On the other hand, in the outer member 3a according to the modified example, as shown in FIG. 10, the notch 80 is provided in the vertical direction on the surface of the outer member facing wall 331 that faces the inner member facing wall 244.

Further, at least one notch portion 80 may be provided in the outer member facing wall 331, and the number thereof is not limited. Further, in the modified example, although it is provided on the short side of the outer member facing wall 331, it may be provided on the longer side of the outer member facing wall 331. Further, the notch portion 80 may be provided in the inner member 2 instead of the outer member 3a. When providing the notch part 80 in the inner member 2, the notch part 80 may be provided in the inner member 2 at a position facing the notch part 80 of the outer member 3a, for example.

When the notch 80 is provided as in the modified example, the leakage suppressing member 5 is provided between the inner member facing wall 244 and the outer member facing wall 331, as shown in FIG. Note that in order to make it easier for gas generated during foaming of the heat insulating member 4 to escape from the notch 80, the length of the notch 80 is determined to be equal to the area of the outer member facing wall 331 where the leakage suppressing member 5 is provided. It is preferable that the length is greater than or equal to the length in the vertical direction.

Also in the above configuration, the distance between the inner member 2 and the outer member 3a is larger in a part of the region of at least one of the inner member 2 and the outer member 3a that comes into contact with the leakage suppressing member 5 than in the other region. The notch part 80 can be provided so that it becomes like this. Therefore, it is possible to prevent a situation in which gas generated by foaming of the heat insulating member 4 becomes difficult to escape to the outside of the container 1, or a situation in which it becomes difficult to spread the heat insulating member 4 to every corner.

1 Container 2 Inner member 3, 3a Outer member 4 Heat insulating member 5 Leak suppression member 7 Lid 11 Discharge portion through hole 21, 31 Bottom wall portion 22 Inner member side wall portion 23 Inner through hole 24 Inner upper frame portion 32 Outer member side wall portion 33 Outer upper frame portion 34 Outer member stepped portion 36 Injection portion 37 Stand compatible recess 62 Openings 80, 333 Notch portion 101 Stand 241 Lid receiving portion 242 Inner wall 243 Inner member horizontal wall 244 Inner member opposing wall 311 Outer through hole 331 Outer member Opposing wall 332 Outer member horizontal wall 334 Engaging portion 361 Inlet 362 Flow regulating portion 3331 Bottom surface 3332 Slanted surface

Claims (6)

an inner member comprising a bottom wall and side walls extending upward from each side of the bottom wall;
an outer member into which the inner member is fitted;
a heat insulating member filled in a space between the inner member and the outer member;
It is made of a breathable and flexible material, and is provided in a pressed state by the inner member and the outer member around the region filled with the heat insulating member between the inner member and the outer member. Equipped with a leakage suppressing member,
A portion of at least one of the inner member and the outer member that comes into contact with the leakage suppressing member is provided so that the distance between the inner member and the outer member is larger than the other region. A notch is provided,
A container characterized by: The inner member has an inner member horizontal wall extending horizontally outward from the side wall portion, and an inner member opposing wall extending downward from the inner member horizontal wall,
The outer member has an outer member opposing wall that faces the inner member opposing wall at an inner side than the inner member opposing wall when the inner member is fitted,
The leakage suppressing member is
A claim characterized in that it is disposed between at least one of the inner member horizontal wall and the upper end of the outer member opposing wall and between the inner member opposing wall and the outer member opposing wall. The container according to item 1. The outer member has an outer member horizontal wall extending horizontally outward from the outer member opposing wall, and in a state where the inner member and the outer member are fitted, a lower end portion of the inner member opposing wall is connected to the outer member horizontal wall. 3. A container according to claim 2, characterized in that the outer member abuts or is adjacent to the horizontal surface of the horizontal wall. Any one of claims 1 to 3, wherein the thickness of the leakage suppressing member when not pressed by the inner member and the outer member is greater than the depth of the notch. Containers listed in section. Claims 1 to 4, wherein the notch is formed by a bottom surface and a pair of inclined surfaces sandwiching the bottom surface and extending outward from both ends of the bottom surface toward the top. A container as described in any one of the above. One of the inner member and the outer member is molded with a resin that has an adhesive effect with the heat insulating member, and the other engages with the heat insulating member on a surface facing the space filled with the heat insulating member. The container according to any one of claims 1 to 5, further comprising an engaging portion.

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