JP2021172343A - Heat insulating container - Google Patents

Abstract

To provide the constitution of a heat insulating container with double vacuum containers, small in the vertical direction, hardly falling and easy to handle.SOLUTION: A heat insulating container 1 has an inner container 2, an outer container 3 and attitude holding parts 41. The inner container 2 has a circular first side wall part 21, a cylindrical first cylinder part 22 extended rearward from the first side wall part 21 and forming a first opening 221 and a storing part 222, and a first vacuum layer continuously contained from the first side wall part 21 over the first cylinder part 22. The outer container 3 has a circular second side wall part 31, a cylindrical second cylinder part 32 extended forward from the second side wall part 31 and forming a second opening 321, and a second vacuum layer continuously contained from the second side wall part 31 over the second cylinder part 32. The inner container 2 is stored between an inner face of the second cylinder part 32 and an outer face of the first cylinder part 22 facing with each other. The attitude holding parts 41 holds to place on a horizontal plane in an attitude of keeping the rear direction to be horizontal.SELECTED DRAWING: Figure 4

Description

The present invention relates to a heat insulating container having a double vacuum container.

Conventionally, a transport box provided with a heat insulating material such as Styrofoam and a cooling agent has been used for transporting biological samples used for medical purposes and the like. However, since this transport box has low heat insulation performance and it is difficult to transport it over a long distance, a heat insulation container with a double vacuum container has been proposed as a countermeasure.

For example, Patent Document 1 and Patent Document 2 disclose a heat-insulating container in which a vertically long inner container, which is a bottomed cylindrical vacuum container, is covered with a vertically long outer container, which is a bottomed cylindrical vacuum container. There is. This heat insulating container is a vertical heat insulating container that is used with a cylindrical side surface upright.

JP-A-2018-164484 JP-A-2017-202854

Since the heat insulating containers of Patent Document 1 and Patent Document 2 are of the vertical installation type, space is required in the vertical direction during transportation and storage, and the center of gravity is high, which may cause the container to tip over during transportation. In addition, when loading and unloading the contents, the heavy outer container must be lifted, which makes it difficult to handle.

An object of the present invention is to provide a heat insulating container having a double vacuum container, which is small in the vertical direction, does not easily tip over, and is easy to handle.

The heat insulating container of the present invention has a circular first side wall portion, a cylindrical first tubular portion extending in the first direction from the first side wall portion to form a first opening and a housing portion, and the first side wall portion. It is provided with an inner container having a portion and a first vacuum layer encapsulated in a series over the first cylinder portion. Further, the heat insulating container includes a circular second side wall portion, a cylindrical second tubular portion extending from the second side wall portion in a second direction opposite to the first direction to form a second opening, and the above-mentioned. The inner container has a second side wall portion and a second vacuum layer enclosed in a series over the second cylinder portion, and the inner container is provided so that the inner surface of the second cylinder portion and the outer surface of the first cylinder portion face each other. It is equipped with an outer container for accommodating. Further, the heat insulating container includes a posture holding portion that holds the heat insulating container so that it can be placed on a horizontal plane in a posture in which the first direction is the horizontal direction.

The heat insulating container provided with the above-mentioned posture holding portion is a horizontal heat insulating container used in a state where the cylindrical second cylinder portion is laid horizontally, so that the heat insulating container is compared with the vertical heat insulating container. It is small in the vertical direction and can prevent it from tipping over. Further, since the inner container is inserted and removed in the horizontal direction while the heat insulating container is placed on a horizontal surface, it is not necessary to lift the heavy outer container unlike the vertical heat insulating container, and it is easy to handle.

In the heat insulating container, the posture holding portion may be composed of a protruding member that protrudes radially outward from the outer surface of the second cylinder portion.

According to the above configuration, the posture holding portion can be realized with a simple configuration.

Further, in the above-mentioned heat insulating container, an outer lid fixed to the outer surface of the first side wall portion and detachable from the second opening portion may be provided, and the protruding member may be provided on the outer lid.

According to the above configuration, the posture holding portion allows the inner container taken out from the outer container to be placed on a horizontal surface.

Further, in the above-mentioned heat insulating container, the outer lid may have a grip portion on the outer surface.

According to the above configuration, the grip portion can be used as a handle when the inner container is inserted into and removed from the outer container and when the inner lid is attached to and detached from the inner container.

Further, in the heat insulating container, the inner container may have a positioning portion, and the outer lid may have a positioned portion that engages with the positioning portion and is positioned in the circumferential direction.

According to the above configuration, by engaging the positioned portion with the positioning portion, the rotation of the outer lid in the circumferential direction is restricted, and the outer lid is positioned with respect to the inner container.

Further, in the above-mentioned heat insulating container, an inner lid that can be attached to and detached from the first opening and one end thereof are fixed to the inner surface of the inner lid and extend in the second direction along the inner surface of the second cylinder portion to accommodate the container. It may be provided with a tubular case for accommodating the above.

According to the above configuration, the inner lid and the case can be attached to and detached from the inner container together.

Further, in the heat insulating container, the inner container has an engaging portion, and the inner lid engages with the engaging portion and is locked in the first direction and positioned in the circumferential direction. It may have an engaging portion.

According to the above configuration, when the engaged portion engages with the engaging portion, the inner lid is locked to the inner container and is positioned in the circumferential direction.

Further, in the above-mentioned heat insulating container, the case may have a holder on the outer surface for detachably holding the heat storage agent.

According to the above configuration, the sample can be kept in an appropriate temperature state for a long time by attaching the heat storage agent.

Further, in the heat insulating container, the space surrounded by the inner lid, the case and the container is provided with a heat insulating material, and the inner lid has a through hole portion penetrating along the first direction. Then, in a state where the inner lid and the case are taken out from the outer container and the inner container, the heat insulating material is pressed in the second direction through the through hole portion, so that the container is released from the case. It may be extruded.

According to the above configuration, the contents can be easily removed from the case.

The heat insulating container provided with the posture holding portion of the present invention is a horizontal heat insulating container used in a state where the cylindrical second cylinder portion is laid horizontally, and thus is compared with a vertical heat insulating container. It is small in the vertical direction and can prevent it from tipping over. Further, since the inner container is inserted and removed in the horizontal direction while the heat insulating container is placed on a horizontal surface, it is not necessary to lift the heavy outer container unlike the vertical heat insulating container, and it is easy to handle.

It is a front side perspective view of the heat insulating container of one embodiment. It is a front view of the heat insulating container 1 of FIG. FIG. 2 is a cross-sectional view taken along the line AA of FIG. It is a front side exploded perspective view of the heat insulating container 1 of FIG. It is a back side exploded perspective view of the heat insulating container 1 of FIG. It is a front side perspective view of an inner container. It is a back side perspective view of an inner container. It is a top view of the inner container. It is a back side perspective view in the state where the inner lid and the case are removed from the inner container. It is a side sectional view of a state in which a sample case is extruded from an inner lid and a case.

1 is a front perspective view of the heat insulating container 1 of one embodiment, FIG. 2 is a front view of the heat insulating container 1 of FIG. 1, FIG. 3 is a sectional view taken along the line AA of FIG. 2, and FIG. 4 is a heat insulating container 1 of FIG. 5 is an exploded perspective view of the front side of the heat insulating container 1 of FIG. 1, FIG. 6 is a front perspective view of the inner container 2, FIG. 7 is a rear perspective view of the inner container 2, and FIG. A plan view of the inner container 2, FIG. 9 is a rear perspective view of the inner container 2 with the inner lid 5 and the case 6 removed, and FIG. 10 is a side cross section of the sample case 8 extruded from the inner lid 5 and the case 6. It is a figure. In the following description, as shown in FIG. 1, each direction is defined with reference to the heat insulating container 1 placed on a horizontal plane, and the direction of each component is also a state of being assembled to the heat insulating container 1 in the mounted state. Use as a reference. The rear direction is an example of the first direction, and the front direction is an example of the second direction.

[Insulation container]
As shown in FIGS. 1 to 5, the heat insulating container 1 has a structure in which a vacuum container is doubled, and is a container for transporting an contained object while keeping it warm and cold. The heat insulating container 1 includes an inner container 2, an outer container 3, an outer lid 4, a posture holding portion 41, an inner lid 5, a case 6, a first heat insulating material 71, a second heat insulating material 72, and a first. A cushioning material 73, a second cushioning material 74, and a heat storage agent 75 are provided. As an example of the contained object, the case 6 contains a four-stage sample case 8 for accommodating a biological sample.

<Inner container>
As shown in FIGS. 3 to 10, the inner container 2 is a bottomed cylindrical vacuum container, and has a first side wall portion 21, a first tubular portion 22, and a first vacuum layer 23. .. The first side wall portion 21 is composed of a double disc material having a gap and extending in the vertical and horizontal directions. The first tubular portion 22 is composed of a double cylindrical plate material having a gap and extending backward from the first side wall portion 21. The front end portion of the first tubular portion 22 projects forward from the first side wall portion 21, and an annular convex portion 222 for fitting the outer lid 4 is formed on the inner surface of the front end portion. A circular first opening 221 is formed by the open end of the first cylinder 22. An accommodating portion 222 for accommodating the sample case 8 is formed in the first tubular portion 22. The first vacuum layer 23 is a vacuum layer that is included in a series over the first side wall portion 21 and the first tubular portion 22.

<Outer container>
As shown in FIGS. 1, 3 to 5, the outer container 3 is a bottomed cylindrical vacuum container having a diameter larger than that of the inner container 2, and has a second side wall portion 31, a second cylinder portion 32, and a second. It has two vacuum layers 33. The second side wall portion 31 is composed of a double disc material having a gap and extending in the vertical and horizontal directions. The second tubular portion 32 is composed of a double cylindrical plate material extending forward from the second side wall portion 31 with a gap. A circular second opening 321 is formed by the open end of the second cylinder 32. The second cylinder portion 32 can accommodate the inner container 2 so that the inner surface 32A of the second cylinder portion 32 and the outer surface 22B of the first cylinder portion 22 face each other. The second vacuum layer 33 is a vacuum layer that is included in a series over the second side wall portion 31 and the second tubular portion 32.

<Outer lid>
As shown in FIGS. 1 to 10, the outer lid 4 is a lid material fixed to the outer surface of the first side wall portion 21 of the inner container 2 and detachable from the second opening 321 of the outer container 3. The outer lid 4 is formed in a circular shape having a recessed front surface side, and has a recess 42, a groove 43, and a grip 44. The recess 42 is formed in an annular shape along the outer peripheral surface of the outer lid 4. The outer lid 4 is fixed to the inner container 2 by fitting the concave portion 42 into the convex portion 222 of the inner container 2.

The groove 43 is located in front of the recess 42 and is formed in an annular shape along the outer peripheral surface of the outer lid 4. An annular packing 45 is fitted in the groove 43. The packing 45 is press-fitted into the inner surface of the second opening 321 of the outer container 3, so that the outer lid 4 is fitted into the outer container 3. The grip portion 44 is a handle formed on the front surface of the outer lid 4. The grip portion 44 is used as a handle when the inner container 2 is inserted into and removed from the outer container 3 and when the inner lid 5 is attached to and detached from the inner container 2.

<Posture holding part>
As shown in FIGS. 1 to 10, the posture holding portion 41 holds the heat insulating container 1 so as not to roll in the left-right direction when the heat insulating container 1 is placed on a horizontal plane in a posture in which the front-rear direction is horizontal. It is a member to be used. The posture holding portion 41 is provided on the bottom portion on the front surface side of the outer lid 4, and is composed of two projecting members that project radially outward from the outer surface 32B of the second cylinder portion 32 of the outer container 3. The posture holding portion 41 can be realized with a simple configuration by being composed of the projecting member.

When the heat insulating container 1 is placed on a horizontal surface, the posture holding portion 41 and the bottom of the outer container 3 are brought into contact with each other, so that the heat insulating container 1 is stably held. Further, as shown in FIGS. 6 and 7, in a state where the inner container 2 separated from the outer container 3 is placed on a horizontal plane, the posture holding portion 41 and the bottom portion of the inner lid 5 are brought into contact with each other. The vessel 2 is stably held.

A rib 411 extending in the front-rear direction is formed on the bottom surface of the posture holding portion 41. The rib 411 is a portion that comes into contact with the ground when placed on a horizontal plane. Since the ground contact area of the posture holding portion 41 is reduced by providing the rib 411, the frictional resistance with the ground contact surface when the inner container 2 is pulled out from the outer container 3 in the state where the heat insulating container 1 is placed on a horizontal surface is reduced. The inner container 2 can be pulled out with a small force.

The shape of the posture holding portion 41 is not particularly limited. For example, a plate-shaped member extending in the left-right direction may be provided on the bottom portion of the outer lid 4, or the bottom portion of the outer lid 4 is formed flat. You may.

Further, the posture holding portion is not particularly limited in its form and arrangement as long as it can be held on a horizontal plane in a posture in which the first direction is the horizontal direction. For example, as the posture holding portion, the outer container 3 may be provided with a protruding member having the same shape as the posture holding portion 41. In this case, it is preferable to provide a positioning portion for positioning the inner container 2 so as not to rotate in the circumferential direction with respect to the outer container 3. Further, as the posture holding member, the outer container 3 or the inner container 2 may be provided with a weight that keeps the balance so that the heat insulating container 1 does not roll in the left-right direction.

<Inner lid>
As shown in FIGS. 3 to 7, the inner lid 5 is a lid material that can be attached to and detached from the first opening 221 of the inner container 2. The inner lid 5 is formed in a circular shape in which the front side and the back side are recessed, and has a flange 51, a first heat insulating material accommodating portion 52, a second heat insulating material accommodating portion 53, and an engaging hole portion 54. There is. The flange 51 is a cylindrical plate material extending in the forward direction. By fitting the inner surface of the flange 51 to the outer surface of the first opening 221 of the inner container 2, the inner lid 5 is fitted to the inner container 2.

The first heat insulating material accommodating portion 52 is an accommodating portion for accommodating the first heat insulating material 71, and is a recessed portion formed on the back surface side of the inner lid 5. The second heat insulating material accommodating portion 53 is an accommodating portion for accommodating the second heat insulating material 72, and is a recessed portion formed on the front surface side of the inner lid 5. The engaging hole portion 54 is a hole for mounting the case 6, and is a hole formed between the flange 51 and the second heat insulating material accommodating portion 53 and penetrating in the front-rear direction. Ribs for reinforcement are formed around the engaging hole portion 54.

Three ribs 55 extending in the front-rear direction are formed on the bottom of the flange 51 of the inner lid 5. The rib 55 comes into contact with the inner surface 32A of the second tubular portion 32 of the outer container 3 when the inner container 2 is housed in the outer container 3. Since the contact area between the inner lid 5 and the second cylinder portion 32 is reduced by providing the rib 55, the frictional resistance when the inner container 2 is pulled out from the outer container 3 is reduced. Further, since the rib 55 creates a gap between the inner container 2 and the outer container 3, when the inner container 2 is pulled out from the outer container 3, air easily enters the outer container 3 through the gap. Therefore, the inner container 2 can be pulled out with a small force. The rib 55 in the center is also a portion that comes into contact with the inner container 2 when it is placed on a horizontal surface.

<Case and heat storage agent>
As shown in FIGS. 3 to 5, 9 and 10, the rear end of the case 6 is fixed to the front surface of the inner lid 5 and extends forward along the inner surface of the second cylindrical portion 32, and the sample case 8 It is a tubular member for accommodating. The case 6 has a tubular portion 61, an engaging claw portion 62, and a holder 63. The tubular portion 61 is a square tubular member extending in the front-rear direction that accommodates the sample cases 8 stacked in four stages so that they can be inserted and removed. The tubular portion 61 may be formed in a shape that matches the shape of the contained object. Ribs 611 protruding downward are formed on the left and right bottom portions of the front end portion of the tubular portion 61. Since the contact area between the case 6 and the inner container 2 is reduced by providing the rib 611, the frictional resistance when the case 6 is pulled out from the inner container 2 is reduced, and the case 6 can be pulled out with a small force.

The engaging claws 62 are four claws formed at the rear end of the tubular portion 61 and projecting rearward. The case 6 is fixed to the inner lid 5 by engaging the engaging claw portion 62 with the engaging hole portion 54 of the inner lid 5 by snap-fitting. The holder 63 is a member that detachably holds the heat storage agent 75 on the outer surface of the case 6. The holders 63 are provided on the outer surfaces of the four surfaces of the tubular portion 61, and each holder 63 is composed of a pair of protruding pieces facing each other. The pair of projecting pieces presses and holds the heat storage agent 75 against the outer surface of the cylinder portion 61. The heat storage agent 75 is attached to and detached from the holder 63 by sliding forward or backward. The heat storage agent 75 is a member that keeps the inside of the heat insulating container 1 cold or warm. By attaching the heat storage agent 75, the sample can be kept in an appropriate temperature state for a long time.

<Insulation material and cushioning material>
As shown in FIGS. 3 to 5, the first heat insulating material 71 is a heat insulating material such as Styrofoam that is fitted to the first heat insulating material accommodating portion 52 of the inner lid 5. The second heat insulating material 72 is a heat insulating material such as Styrofoam that is fitted to the second heat insulating material accommodating portion 53 of the inner lid 5. The first cushioning material 73 is arranged between the second heat insulating material 72 and the sample case 8 in the case 6. That is, the second heat insulating material 72 and the first cushioning material 73 are filled in the space surrounded by the inner lid 5, the case 6, and the sample case 8. The second cushioning material 74 is provided at a position facing the case 6 on the inner surface of the first side wall portion 21 of the inner container 2. The second cushioning material 74 prevents the sample case 8 from colliding with the first side wall portion 21 of the inner container 2 when the sample case 8 protrudes from the case 6 during transportation.

<Positioning part and positioned part>
As shown in FIGS. 6 and 8, the inner container 2 has a positioning portion 24, and the outer lid 4 has a positioned portion 46 that engages with the positioning portion 24 and is positioned in the circumferential direction. The positioning portion 24 is a substantially rectangular parallelepiped convex portion provided at the upper end portion near the front end on the outer surface 22B of the first tubular portion 22 of the inner container 2. The positioned portion 46 is a protruding portion protruding rearward from the upper end portion between the recess 42 and the groove 43 on the outer peripheral surface of the outer lid 4. This protrusion is cut out from the rear end toward the front.

When the outer lid 4 is assembled to the inner container 2, the positions in the circumferential direction are aligned so that the notched portion of the positioned portion 46 engages with the positioning portion 24. By engaging the positioned portion 46 with the positioning portion 24, the rotation of the outer lid 4 in the circumferential direction is restricted, and the outer lid 3 is positioned with respect to the inner container 2. The positioning portion 24 and the positioned portion 46 may be provided at positions other than the upper end portion as long as they are at the same position in the circumferential direction.

<engaged part and engaged part>
As shown in FIGS. 6 and 8, the inner container 2 has an engaging portion 25, and the inner lid 5 engages with the engaging portion 25 and is locked in the rear direction and positioned in the circumferential direction. It has an engaging portion 56. The engaging portion 25 is a substantially columnar convex portion provided at the upper end portion near the rear end of the outer surface 22B of the first tubular portion 22 of the inner container 2. The engaged portion 56 is a protruding portion protruding forward from the upper end portion of the front end of the flange 51 of the inner lid 5. This protrusion is cut out in an L shape that bends to the right from the front end toward the rear.

When the inner lid 5 is attached to the inner container 2, the user adjusts the position in the circumferential direction so that the notched portion of the engaged portion 56 is in a position where it can be engaged with the engaging portion 25. Next, the inner lid 5 is moved forward to fit into the inner container 2, and then the inner lid 5 is rotated to the left with respect to the upper end portion. As a result, the inner end of the notched portion of the engaged portion 56 engages with the engaging portion 25. Therefore, the inner lid 5 is locked in the rear direction and is positioned in the circumferential direction. The engaging portion 25 and the engaged portion 56 may be provided at positions other than the upper end portion as long as they are at the same position in the circumferential direction.

<Extrusion of sample case>
As shown in FIG. 3, the inner lid 5 has a through hole portion 57, the first heat insulating material 71 has a through hole portion 711, and the second heat insulating material 72 has a convex portion 721. The through hole portion 57 is a square hole formed in the central portion of the circular inner lid 5 and penetrating in the front-rear direction. The through-hole portion 711 is a square hole formed in the first heat insulating material 71 at a position overlapping the through-hole portion 57 in the front-rear direction and penetrating in the front-rear direction. The convex portion 721 is a convex portion formed at a position and shape that can be fitted into the through hole portion 57 and the through hole portion 711 on the back surface of the second heat insulating material 72.

As shown in FIG. 10, in the inner lid 5 and the case 6 separated from the inner container 2, the convex portion 721 is pressed forward by the user through the through hole portion 57, so that the first heat insulating material 71 and the first heat insulating material 71 and the case 6 are pressed. The first cushioning material 73 is pushed forward (the state shown by the alternate long and short dash line in FIG. 10), and a part of the sample case 8 is pushed forward from the case 6. As a result, the sample case 8 can be easily taken out from the case 6.

[summary]
As described above, the heat insulating container 1 provided with the posture holding portion 41 is a horizontal heat insulating container used in a state where the cylindrical second cylinder portion 32 is laid horizontally, so that the heat insulating container 1 is vertically placed. Compared to the container, it is smaller in the vertical direction and can prevent it from tipping over. Further, since the inner container 2 is inserted and removed in the horizontal direction while the heat insulating container 1 is placed on a horizontal surface, it is not necessary to lift the heavy outer container 3 unlike the vertical heat insulating container, and it is easy to handle. ..

1 Insulated container 2 Inner container 3 Outer container 4 Outer lid 5 Inner lid 6 Case 8 Sample case (container)
21 1st side wall part 22 1st cylinder part 23 1st vacuum layer 24 Positioning part 25 Engagement part 31 2nd side wall part 32 2nd cylinder part 33 2nd vacuum layer 41 Posture holding part 44 Grip part 46 Positioned part 56 Covered Engagement part 57 Through hole part 63 Holder 72 Insulation material (second insulation material)
75 Heat storage agent 221 1st opening 222 Accommodating part 321 2nd opening

Claims (9)

A circular first side wall portion, a cylindrical first cylinder portion extending in the first direction from the first side wall portion to form a first opening and a housing portion, the first side wall portion, and the first cylinder portion. An inner container having a first vacuum layer encapsulated in a series over the same
A circular second side wall portion, a cylindrical second side wall portion extending from the second side wall portion in a second direction opposite to the first direction to form a second opening, the second side wall portion, and the second side wall portion. An outer container having a second vacuum layer enclosed in a series over the second cylinder portion and accommodating the inner container so that the inner surface of the second cylinder portion and the outer surface of the first cylinder portion face each other. ,
A heat insulating container including a posture holding portion that holds the container so that it can be placed on a horizontal plane in a posture in which the first direction is the horizontal direction. The heat insulating container according to claim 1, wherein the posture holding portion is composed of a protruding member that protrudes radially outward from the outer surface of the second tubular portion. The second side wall portion is fixed to the outer surface, and the second opening portion is provided with a removable outer lid.
The heat insulating container according to claim 2, wherein the protruding member is provided on the outer lid. The heat insulating container according to claim 3, wherein the outer lid has a grip portion on the outer surface. The inner container has a positioning portion and has a positioning portion.
The heat insulating container according to claim 3 or 4, wherein the outer lid has a positioned portion that engages with the positioning portion and is positioned in the circumferential direction. An inner lid that can be attached to and detached from the first opening,
The first aspect of the present invention, wherein one end thereof is fixed to the inner surface of the inner lid, extends in the second direction along the inner surface of the second tubular portion, and includes a tubular case for accommodating an contained object. The heat insulating container according to any one of claims 5. The inner container has an engaging portion and has an engaging portion.
The heat insulating container according to claim 6, wherein the inner lid has an engaged portion that engages with the engaging portion, is locked in the first direction, and is positioned in the circumferential direction. The heat insulating container according to claim 6 or 7, wherein the case has a holder on the outer surface that holds the heat storage agent detachably. A heat insulating material that fills the space surrounded by the inner lid, the case, and the container is provided.
The inner lid has a through hole portion penetrating along the first direction.
When the inner lid and the case are taken out from the outer container and the inner container, the heat insulating material is pressed in the second direction through the through hole portion, so that the container is pushed out from the case. The heat insulating container according to any one of claims 6 to 8, wherein the heat insulating container is characterized in that.

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