JP2018052440A - Cold insulation cart - Google Patents

Abstract

PROBLEM TO BE SOLVED: To solve the problem in which, in a cold insulation cart provided with an accommodation part for accommodating a cold insulator on an inner face of a cold insulation sheet, an interior space surrounded by the cold insulation sheet is cooled by the cold insulator, and then, moisture in air condenses to form dew condensation inside the cold insulator accommodation part, falls as water droplets onto a bottom face of the cold insulation cart to become a water puddle, and wets an article to be kept refrigerated such as a corrugated box, thereby impairing commodity value.SOLUTION: A cold insulator accommodation part 26 is composed of an air permeable pocket 32 and a waterproof sheet 34, and a flap-shaped sheet tongue piece 28 is formed below the waterproof sheet 34. By extending the sheet tongue piece 28 to the outside of a cold insulation sheet 18 via an opening 30 opened on the cold insulation sheet 18 to which the cold insulator accommodation part 26 is attached, dew condensation water is conveyed on a surface of the sheet tongue piece 28 and discharged to the outside.SELECTED DRAWING: Figure 8

Description

  More specifically, the present invention relates to a cold storage cart that defines a cold insulation space with a cold insulation sheet supported by a frame, and more particularly, when a cold storage container for keeping the cold insulation space is used, the cold storage container portion The present invention relates to a cold insulation cart that allows water droplets condensed on the outside to escape to the outside of the cold insulation sheet.

  As shown in FIG. 11, a so-called frame carriage 16 is widely used in which casters 12 are attached to a rectangular pedestal 10 and frame frames 14 are erected at four corners of the pedestal 10. The frame carriage 16 is used for loading a cardboard box or other cargo on the pedestal 10 in a market such as a warehouse or a supermarket, and for an operator to push and move the frame 14. Further, as shown in FIG. 12, a cold insulation sheet 18 is positioned inside the frame 14 of the frame carriage 16, and the cold insulation sheet 18 is attached to the frame 14 by, for example, a fastener belt 20, so that a cold insulation space S is formed inside. A so-called cold storage cart 22 that has been defined is put into practical use. The cold insulation sheet 18 is composed of a front face, a rear face, left and right side faces, a top face and a bottom face, and the front cold insulation sheet 18 shown in FIG. 12 is rolled up to open the entire surface of the cold insulation carriage 22. Thus, the cold insulation space S is exposed.

  The cold storage carriage 22 covers the six surfaces with the cold storage sheet 18 to define the cold storage space S. When the cold storage products B such as chocolate and dairy products are loaded inside, the cold storage products 22 In order to keep B in a cold state, a cold insulation agent 24 is stored in the cold insulation space S. As the cooling agent 24, dry ice or an ice pack is preferably used. However, ice cubes such as crushed ice and ice cubes may be put in a plastic bag. As shown in FIG. 12, as an example, a cold insulation container 26 made of a mesh body of a required mesh is attached to the center of the inner surface of the cold insulation sheet 18 on the left side of the cold insulation carriage 22. A cooling agent 24 is accommodated. Thereby, the cold air from the cold insulation agent 24 accommodated in the cold insulation storage unit 26 is transmitted to the cold storage space S through the mesh of the cold storage agent storage unit 26, and the cold storage product B required to keep the cold storage space S in the cold storage state. Will not melt or damage the contents.

JP 11-139317 A

  However, the cryogen storage unit 26 shown in FIG. 13 which is an enlarged view of FIG. 12 is configured by attaching a nonwoven fabric sheet or a nylon sheet to a mesh body of a required mesh, and the cryogen storage unit 26 is composed of the cold storage sheet 18. It is detachably attached to the inner surface. For this reason, when the cold-retaining agent 24 is accommodated in the cold-reserving agent accommodating part 26, the condensation which the moisture in the air condensed on the sheet | seat, such as the said nonwoven fabric which contact | connects this cold-retaining agent 24, is absorbed as a water | moisture content. By the way, when this dew condensation increases and weight increases, it flows down as a water droplet through the nonwoven fabric sheet and the cold insulation sheet 18 and collects on the bottom surface of the cold insulation carriage 22 to form a water pool (see FIG. 13). For this reason, there exists a fault which will get wet and will impair a commercial value, when the cardboard box and other cold storage goods B contact the water | moisture content and water pool absorbed by the nonwoven fabric sheet of the said cold storage agent accommodating part 26. In addition, it requires troublesome work such as wiping off the water accumulated on the bottom surface.

In order to solve the problem and achieve the intended object, the invention according to claim 1
In the cold storage cart comprising a frame that becomes a skeleton, a cold insulation sheet that is supported by the frame and that defines a cold insulation space inside, and a cold insulation storage unit that is disposed on the inner surface of the cold storage sheet and stores the cold storage agent,
The cold-reserving agent storage part includes a breathable pocket for storing the cold-retaining agent, a waterproof sheet joined to a lower back surface of the breathable pocket, a part of the waterproof sheet, and a lower portion from a lower end edge of the breathable pocket A sheet tongue extending to
The cold-retaining sheet in which the cold-reserving agent accommodating portion is disposed has a horizontally long opening for extending the sheet tongue piece to the outside of the cold-retaining sheet when the cold-reserving agent accommodating portion is attached. Is the gist.
According to the first aspect of the present invention, moisture condensed in the cold insulation container is discharged to the outside of the cold insulation sheet via the sheet tongue that forms a part of the waterproof sheet constituting the cold insulation container. Therefore, it does not wet cold-reserved items.

  According to a second aspect of the present invention, the breathable pocket is made of a breathable member that allows the cold air of the cooling agent to pass outside, and the waterproof sheet is made of a resin member that prevents moisture absorption and permeation. Is the gist.

According to a third aspect of the present invention, the cold insulation sheet in which the cooling agent storage portion is disposed includes an upper divided half and a lower divided half, and a lower end edge of the upper divided half and the lower divided half The sheet tongue is passed through the notch with the upper edge of the lower half of the sheet, and both divided halves are sewn with the lower end of the sheet tongue positioned outside the lower divided half. To do.
According to the invention of claim 3, when the sheet tongue piece is extended to the outside of the cold insulation sheet, the sheet tongue piece is extended outward through the opening provided in the cold insulation sheet. The water flows smoothly and is released to the outside.

  The gist of the invention described in claim 4 is that the opening having a width dimension that allows the sheet tongue piece to pass through the notch is established by stitching the upper divided half and the lower divided half. And

In the invention according to claim 5, a water receiver that opens in the vicinity of the waterproof sheet of the cold-reservoir accommodating portion disposed in the upper divided half is provided at an inner upper end of the lower divided half. It is the gist.
According to the invention of claim 5, the moisture condensed inside the cold insulation sheet and in the vicinity of the cold insulation container is collected by the water receiver, so that the side surface and the bottom surface of the cold insulation carriage do not get wet. There is no water pool on the bottom.

  The gist of the invention described in claim 6 is that the cold insulation sheet is composed of six surfaces including a front surface, a rear surface, left and right side surfaces, a top surface, and a bottom surface, and the cold insulation sheet is supported inside the frame. .

  In a cold storage cart in which a cooling agent storage portion typified by dry ice is provided on the inner surface of the cold storage sheet, a sheet tongue piece that is a part of a waterproof sheet joined to a breathable pocket constituting the cooling agent storage portion is Since the water is extended outward through the opening provided in the sheet, the moisture condensed in the cold insulation container is transferred outward through the sheet tongue piece. Therefore, the condensed water does not drip from the cryogen storage part and becomes a water pool on the bottom surface, or the product requiring refrigeration does not come into contact with the condensed water droplets to impair the commercial value. In addition, it is possible to reduce work such as wiping off water accumulated on the bottom surface of the cold storage cart.

It is a perspective view of the cold storage cart which concerns on the Example of this invention. FIG. 3 is an internal side view of a left side cold insulation sheet in the cold insulation cart shown in FIG. 1. FIG. 3 is an external side view of a left side cold insulation sheet in the cold insulation cart shown in FIG. 1. It is a perspective view of the cold storage agent accommodating part used in the Example of this invention. FIG. 5A is an explanatory diagram of the cold-reserving agent housing portion shown in FIG. 4, and FIG. 5A is a development view showing each of a net-like breathable pocket and a waterproof sheet joined to the breathable pocket. (b) is an expanded view of the cold-reserving agent accommodation part shown in the state which joined the waterproof sheet to the air permeable pocket. Moreover, (c) is a back view of the cryogen storage part shown in (b). It is a perspective view which shows the cold insulation sheet | seat by which a cold-reserving agent accommodating part is arrange | positioned in the state isolate | separated into the upper division | segmentation half and the lower division | segmentation half. FIG. 7 is an explanatory view showing a state in which the sheet tongue piece of the cold insulation container is extended to the outside of the cold insulation sheet when the upper and lower divided halves shown in FIG. 6 are stitched, and FIG. The state which extended the sheet | seat tongue piece to the outer side of the cold insulation sheet | seat before is shown, (b) has shown the state which sewn both the division | segmentation halves. It is a longitudinal cross-sectional view which shows the state which attached the cold storage agent accommodating part to the cold insulating sheet, and extended the sheet tongue piece to the outer side of the cold insulating sheet. (a) and (b) is a modification of the embodiment shown in FIG. 7, in which two split halves are bonded together with a waterproof adhesive tape so as to form an opening. It is a thing. (a) And (b) is a modification of the Example shown in FIG. 7, Comprising: The opening part was opened in the sheet | seat of a cool-keeping sheet. It is a perspective view which shows the outline of a conventionally well-known frame cart. FIG. 12 is a perspective view of a cold insulation carriage provided with a cold insulation sheet inside the frame in the frame carriage shown in FIG. 11, in which the front cold insulation sheet is raised to expose the internal cold insulation space. It is the partially expanded view of FIG. 12, Comprising: The dew condensation water from a cooling agent accommodating part flows down along a cold insulation sheet | seat, and has shown the state which produced the water pool on the bottom face.

  Next, specific examples of the cold-storage cart according to the present invention will be described with reference to the accompanying drawings. In addition, since the basic structure of a cold-storage cart is as having demonstrated in FIGS. 11-13, the same code | symbol is described about the same member and the description is abbreviate | omitted.

  In the cold insulation cart 22 according to the embodiment of the present invention, the cold insulation storage unit 26 having the structure shown in FIGS. 4 and 5 is provided in the cold insulation sheet 18 shown in FIGS. Then, the sheet tongue piece 28 that forms a part of the cold insulating material accommodating portion 26 extends to the outside of the cold insulating sheet 18 through the opening 30 provided in the cold insulating sheet 18. That is, the cryogen storage portion 26 used in the embodiment includes a breathable pocket 32 having a capacity capable of accommodating the cryogen 24 therein, and a lower back surface of the breathable pocket 32 (attached to the inner surface of the cool sheet 18). And a sheet tongue piece 28 which forms a part of the waterproof sheet 34 and extends downward from the lower end edge of the breathable pocket 32. The breathable pocket 32 is made of a breathable member having a large number of vent holes, meshes or the like set to have an opening size that allows the cold air from the cooling agent 24 (for example, dry ice or ice pack) to pass outside without resistance. In the illustrated example, a mesh body of a predetermined mesh is used. The waterproof sheet 34 is made of a resin member that prevents moisture absorption and passage. For example, the waterproof sheet 34 is made of an aluminum foil, an aluminum vapor-deposited sheet or other synthetic resin sheet as an exterior material, and a thermal insulation sheet such as foamed polyethylene, glass wool, or nonwoven fabric is sandwiched from both sides by these exterior materials. It has become. For this reason, the surface of the waterproof sheet 34 has a feature that it is difficult for condensation to occur.

  The basic configuration of the cryogen storage unit 26 will be further described with reference to FIGS. In Fig.5 (a), the code | symbol 32 shows the air permeable pocket 32 before becoming a pocket in the expansion | deployment state, and is cut | judged in the illustration shape. Reference numeral 34 also shows the waterproof sheet 34 before being joined to the breathable pocket 32 in the unfolded state, and is cut into the illustrated shape, and the flap-like sheet tongue piece 28 is provided below the waterproof sheet 34. Existing. That is, the waterproof sheet 34 and the sheet tongue piece 28 are the above-described laminate sheet integrated. Then, as shown in FIG. 5 (b), the breathable pocket 32 and the waterproof sheet 34 are partially overlapped and joined to obtain the cold insulation storage portion 26 shown in the perspective view of FIG. . Further, as shown in FIG. 5C, the back surface of the cold insulation container 26 where the breathable pocket 32 and the waterproof sheet 34 are joined is covered with a net (breathable pocket 32), and The sheet tongue piece 28 extends from the lower end edge. It should be noted that the breathable pocket 32 and the waterproof sheet 34 can be joined by stitching with a thread, but depending on the material of both members, it may be fused by a high frequency welder or may be bonded using an adhesive tape.

  4 and 5 is attached to the inner central portion of the cold insulation sheet 18 forming the right side surface of the cold insulation carriage 22, as shown in FIGS. Is extended outward through the opening 30 of the cold insulation sheet 18 shown in FIG. Accordingly, a structure for extending the sheet tongue piece 28 to the outside of the cold insulation sheet 18 will be described with reference to FIGS. FIG. 6 shows an example of the cold insulation sheet 18 shown in FIG. 3, and the cold insulation sheet 18 is divided into an upper divided half 36 and a lower divided half 38 substantially at the center thereof. Further, in the center of the lower edge 36a of the upper divided half 36, a horizontally long notch 40 having a width dimension substantially matching the width dimension of the sheet tongue piece 28 is provided, which will be described later with reference to FIG. Thus, when the lower end edge 36 a of the upper divided half 36 and the upper end edge 38 a of the lower divided half 38 are joined, the notch 40 constitutes the opening 30.

  That is, in order to abut the upper divided half 36 (the lower end edge 36a) and the lower divided half 38 (the upper end edge 38a) to join each other, first, as shown in FIG. The portion 26 is attached to the back surface of the cold insulation sheet 18 (the side that becomes the cold insulation space S). At that time, the sheet tongue piece 28 of the waterproof sheet 34 is drawn out of the cold insulation sheet 18 in a state where the sheet tongue piece 28 faces the notch 40 formed in the lower end edge 36 a of the upper divided half 36. Next, as shown in FIG. 7 (b), by joining both halves 36, 38 in a state where both end edges 36a, 38a of the upper divided half 36 and the lower divided half 38 are in contact with each other, One cold insulating sheet 18 is used. Thus, the opening 30 is formed between the upper divided half 36 and the lower divided half 38, and the sheet tongue piece 28 extends outward from the opening 30. . In this case, the height of the opening 30 is such a size that does not hinder the flow of water droplets traveling on the surface of the sheet tongue piece 28 and does not allow cold air to escape from the cold insulation space S. Is set to

  In order to join the upper divided half 36 and the lower divided half 38, the two divided halves 36, 38 may be bonded together with a waterproof adhesive tape, or the waterproof tape is overlapped and stitched with a thread. You may make it do. Further, in the example shown in FIG. 6, the opening 30 is defined by providing a notch 40 in the lower end edge 36 a of the upper divided half 36. Conversely, the opening 30 is formed in the upper end edge 38 a of the lower divided half 38. The opening 30 may be defined (not shown) by providing the notch 40. Further, even if the notch 40 is not actively provided, as shown in FIG. 9, two waterproof adhesive tapes 44 and 44 are used to form the lower end edge 36a of the upper divided half 36 and the upper end of the lower divided half 38. The opening 30 may be formed by bonding so as to form a required gap between the edge 38a.

  The relationship between the sheet tongue piece 28 and the opening 30 is shown in the longitudinal sectional view of FIG. That is, when both end edges 36a, 38a of the upper divided half 36 and the lower divided half 38 are brought into contact with each other and joined, the width of the sheet tongue 28 is interposed between the joined portions as described above. The opening 30 having a width dimension substantially equal to the dimension is provided. Then, as shown in FIG. 8, the sheet tongue 28 formed on the lower edge of the waterproof sheet 34 in the cold insulation container 26 is drawn outward through the opening 30 and the lower divided half 38 Extends outward in a flap shape. Moreover, the height (gap) of the opening 30 is set to such a size that the water droplets and moisture transmitted on the surface of the sheet tongue piece 28 do not touch the opening 30 and are prevented from flowing out as described above. Therefore, even if moisture in the air condenses on the surface of the nearby waterproof sheet 34 or the cold insulation sheet 18 due to the cold air of the cold insulation agent 24 accommodated in the cold insulation storage unit 26 and is condensed and collected as water droplets, FIG. As shown in FIG. 3, these water droplets travel along the sheet tongue 28 and flow outward. For this reason, the water droplets condensed in the cold insulation container 26 do not flow down to the side surface of the cold insulation carriage 22 or fall to the bottom surface and become a water pool, so that the cold insulation product B loaded on the cold insulation carriage 22 is wetted. The product value is not impaired. The sheet tongue 28 extending outward from the cold insulation sheet 18 is preferably bonded to the outer surface of the lower divided half 38 with a double-sided tape (not shown).

  As shown in FIG. 8, a water receiver 42 that opens in the vicinity of the waterproof sheet 34 of the cold insulation container 26 is disposed near the inner upper end of the lower divided half 38. When the water receiver 42 is condensed on the surface of the waterproof sheet 34 of the cold-reservoir accommodating portion 26 (when the humidity of the cold-reserving space S is low and the moisture in the cold-retaining space S is high, the waterproof sheet 34 is insulated) 8), water droplets dripping along the waterproof sheet 34 are collected as shown in FIG. 8, so that the side surface and the bottom surface are not wetted. There is no water pool.

  FIG. 10 shows a modification of the embodiment shown in FIG. That is, in the embodiment of FIG. 7, the cold insulation sheet 18 is obtained by joining the two halves 36, 38 divided vertically, but FIG. 10 uses a single cold insulation sheet 18 and has the opening 30 at the center. Is established. Here, FIG. 10 (a) shows a state in which an opening 30 is opened in a single cold insulation sheet 18, and FIG. 10 (b) shows that the sheet tongue piece 28 passes through the opening 30 and extends downward. It shows the state that was made to.

  Further, when the upper divided half 36 and the lower divided half 38 are joined, the width dimension of both the divided halves 36 and 38 and the sheet tongue piece 28 is used (or not used) with a waterproof adhesive tape. And a part of the horizontally long notch 40 are integrated with each other by stitching with a superposed thread, and the width of the horizontally wide opening 30 is about 5 cm to 10 cm (5% to 15% of the width of the cold insulation sheet 18). ) Can be narrow. That is, it is preferable that the width of the opening 30 is set to a size that does not impede the flow of water droplets traveling along the surface of the sheet tongue 28. Thereby, there is an advantage that it is possible to prevent the cold air from escaping from the cold insulation space S.

14 frame, 18 cool sheet, 22 cool truck, 24 cool agent,
26 Cold storage container, 28 sheet tongue, 30 opening, 32 breathable pocket,
34 waterproof sheet, 36 upper divided half, 36a lower edge of upper divided half,
38 Lower split half, 38a Upper edge of lower split half, 40 notches, 42 water catcher,
S Cold storage space

Claims (6)

In the cold storage cart comprising a frame that becomes a skeleton, a cold insulation sheet that is supported by the frame and that defines a cold insulation space inside, and a cold insulation storage unit that is disposed on the inner surface of the cold storage sheet and stores the cold storage agent,
The cold-reserving agent storage part includes a breathable pocket for storing the cold-retaining agent, a waterproof sheet joined to a lower back surface of the breathable pocket, a part of the waterproof sheet, and a lower portion from a lower end edge of the breathable pocket A sheet tongue extending to
The cold-retaining sheet in which the cold-reserving agent accommodating portion is disposed has a horizontally long opening for extending the sheet tongue piece to the outside of the cold-retaining sheet when the cold-reserving agent accommodating portion is attached. A cold storage cart characterized by   The cold-insulated trolley according to claim 1, wherein the breathable pocket is made of a breathable member that allows the cold air of the cold-retaining agent to pass outside, and the waterproof sheet is made of a resin member that prevents moisture absorption and permeation.   The cold-insulating sheet in which the cold-retaining agent accommodating portion is arranged is composed of an upper divided half and a lower divided half, and the notches between the lower edge of the upper divided half and the upper edge of the lower divided half The cold insulation cart according to claim 1 or 2, wherein the split halves are stitched together with the sheet tongue passing through and the lower end of the sheet tongue being positioned outside the lower split halves.   The said opening part of the width dimension which allows the said sheet | seat tongue piece to pass through to the said notch is opened by stitching | suturing the said upper part division | segmentation half body and the said lower part division | segmentation half body, The opening part of any one of Claims 1-3. Refrigerated trolley.   The water receptacle which opens in the vicinity of the said waterproof sheet of the said cold insulating agent accommodating part arrange | positioned in the said upper division | segmentation half is provided in the inner upper end part in the said lower division | segmentation half. The cold storage cart as described in any one of items.   The cold insulation sheet according to any one of claims 1 to 5, wherein the cold insulation sheet includes six surfaces including a front surface, a rear surface, left and right side surfaces, a top surface, and a bottom surface, and the cold insulation sheet is supported on the inner side of the frame. Trolley.

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