JP2016117512A - Article conveyance device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the heat insulation performance of a conveyance device while maintaining rigidity of a device body in which articles are stored by housing or placing in the synthetic resin-made device used for conveyance of the articles such as a container or conveyance truck.SOLUTION: The heat insulation performance of a conveyance device body is improved by wrapping over the inner and outer frame materials 21, 22 holding a heat insulation material 23 in between, and the rigidity of the device body is retained by setting plural reinforcing ribs 21b, 22b on the inner faces of the inner and outer frame materials 21, 22. The ribs facing each other have intervals from each other and are disposed deviating from each other so that the movement of heat does not generate between the inner and outer frame materials 21, 22.SELECTED DRAWING: Figure 7

Description

  The present invention relates to an article transportation apparatus such as a container (container) for storing and storing or transporting an article including luggage, or a carriage for loading and conveying the article. The container main body and the pedestal of the carriage for transportation are related to a structure in which synthetic resin frame members are integrally overlapped with a heat insulating material interposed therebetween.

For example, as shown in FIG. 10A, the container body 101 of the container 100 has a gap 104 between the outer frame member 102 and the inner frame member 103 as a container corresponding to the storage of articles that need to be kept warm or cold. The flanges 102a and 103a formed at the peripheral edges of the inner and outer frame members 102 and 103 are joined to each other, and a plurality of ribs 102b provided at the bottom of the outer frame member 102 are formed at the bottom of the inner frame member 103. A structure in which the inner and outer frame members 102 and 103 are integrally fixed by joining and welding the joint portions of the flange portions 102a and 103a and the ribs 102b is known (see, for example, Patent Document 1).
As another container, for example, as shown in FIG. 4B, an outer frame material 112 and an inner frame material 113 of the container main body 111 of the container 110 are insulated by a synthetic resin such as expanded polystyrene between the two frame materials. A structure in which the material 114 is overlapped and integrated with each other interposed therebetween is known (for example, see Patent Document 2).
In addition, for example, a container containing cold-retained articles is stacked in a plurality of stages on a heat-insulating support plate, and the uppermost container is covered with a heat-insulating upper lid, that is, a plurality of containers, a support plate, and an upper cover are overlapped for cold insulation. The thing of the form which comprises a container and is conveyed integrally is known.

JP-A-7-132777 JP 2014-141278 A

Although the conventional container 100 can increase the rigidity of the container main body 101 by a plurality of ribs 102 b disposed between the inner and outer frame members 102 and 103, the rib 102 b of the outer frame member 102 becomes the inner frame member 103. Since the connection is made, heat is transferred between the inner and outer frame members 102 and 103 through the rib 102b, and there is a problem that the function of keeping the article stored on the inner frame member 103 is kept warm.
The container 110 has high heat insulation performance because the heat insulating material 114 is inserted between the inner and outer frame members 112 and 113, but the inner wall of the inner and outer frame members 112 and 113 are not provided with reinforcing ribs. In the case where the container 110 is formed in a large size so as to be suitable for storing articles having a large mass, it is necessary to take means for maintaining the rigidity of the container body 111.

On the other hand, since the container used for the polymerization container for cold insulation is installed between a support plate having heat insulating properties and an upper lid, a heat insulating material is inserted between the inner and outer frame members on the peripheral side surface of the container. However, it is not necessary to insert the bottom portion between the inner and outer frame members, but in order to maintain the rigidity of the bottom portion, it is necessary to provide reinforcing ribs on the inner surfaces of the inner and outer frame members.
If a large number of ribs are provided on the inner surface of the outer frame material and the inner frame material, the strength of the bottom of the container formed by overlapping the inner and outer frame materials is increased, but the contact area between the ribs provided on the inner surface of the inner and outer frame materials is increased. If it is large, the amount of heat that moves through the ribs may increase, resulting in a situation where the cold insulation performance is degraded.

  SUMMARY OF THE INVENTION In view of such problems of the prior art, the present invention provides a device body for storing articles by storing or placing articles in a synthetic resin transport apparatus used for transporting articles such as containers and carts for transportation. It is an object to improve the heat insulation performance while maintaining the rigidity of.

  In order to solve the above problems, the present invention improves the heat insulation performance of the main body of the apparatus by overlapping the outer frame material and the inner frame material with the heat insulating material interposed therebetween, while providing a plurality of reinforcing ribs on the inner surface of the inner and outer frame materials. In order to maintain the rigidity of the main body of the device and to prevent heat from moving between the inner and outer frame members through the ribs, the opposing ribs of both frame members are displaced from each other with the gap between them. Arranged to be arranged.

That is, the present invention is an article transportation apparatus in which an apparatus main body in which an article is accommodated is formed by overlapping an outer frame material and an inner frame material with a heat insulating material interposed between both frame materials,
A plurality of ribs are provided side by side on the inner surface of the outer frame member and the inner surface of the inner frame member at least in a region where the articles of the apparatus main body are accommodated, and both the rib members formed on the inner surface of the inner and outer frame members are overlapped with each other. In some cases, the ribs protruding from the inner surface of the inner frame member are disposed between the ribs protruding from the inner surface of the outer frame member.

The article transporting device having the above-described structure is provided so that the rib protruding from the inner surface of the inner frame material is disposed between the ribs protruding from the inner surface of the outer frame material. A gap space in which the heat insulating material is inserted and installed is secured, and the heat insulating material can be installed between the ribs. In this case, since the ribs on the inner surface of the outer frame material and the ribs on the inner surface of the inner frame material sandwich the heat insulating material, heat does not move through the ribs between the inner and outer frame materials, and the rigidity of the device main body in which the article is accommodated is increased. The heat insulating property can be improved while holding.
Further, even when a heat insulating material is not installed between the inner and outer frame members in the area where the articles are stored, such as a container used in the polymerization container for cold insulation, the arrangement of the ribs provided on the inner surface of the outer frame material and the inner frame material Even if the ribs of the inner and outer frame members are in contact with each other, the contact area can be reduced by disposing the ribs provided on the inner surface so that the heat through the ribs can be maintained while maintaining the necessary rigidity. The amount of movement can be suppressed and the heat insulation can be improved.

The ribs provided on the inner surfaces of the inner and outer frame members are projected in a grid pattern on the entire inner surface of the outer frame member and the inner surface of the inner frame member, respectively, in order to increase the rigidity of the inner and outer frame members that are loaded by storing articles. It is preferable to provide in a different shape.
When providing grid-like ribs with the same arrangement interval and protruding width on the inner surface of the inner and outer frame members, the inner frame member rib is located in the center between the ribs on the inner surface of the outer frame member with the inner and outer frame members overlapped. It is preferable that the ribs are arranged so that they are arranged so that the opposing ribs are shifted by a half pitch.

  In the article transportation apparatus having the above configuration, when the heat insulating material is provided between the inner surface of the outer frame material provided with the ribs and the inner surface of the inner frame material, the heat insulating material is provided on the inner surface of the inner and outer frame materials. When the groove into which the rib fits is formed, and the inner and outer frame members are overlapped with the heat insulating material sandwiched, the ribs on the inner surfaces of both frame members are immersed in the groove and heat insulation is performed between the adjacent ribs. It is preferable to provide a material so as to be inserted and fixed inside both frame members.

  When the article transporting apparatus having the above configuration is a container that stores articles and uses them for storage or transport, the apparatus main body corresponds to a container main body that surrounds the periphery of the bottom of the container with a side portion. In this case, the outer frame member is a frame member that forms the outer peripheral surface of the container main body, and the inner frame member is a frame member that forms the inner peripheral surface of the container main body in which articles are stored.

In addition, when the article transporting device having the above-described configuration is a transporting carriage that loads and uses articles, the apparatus main body corresponds to a pedestal with a caster of the transporting carriage. In this case, the outer frame member is a lower frame member that forms the bottom surface of the pedestal, and the inner frame member is an upper frame member that forms the upper surface of the pedestal on which the article is placed.
The transportation cart includes various carts having a caster attached to the bottom of the pedestal, such as a hand cart, a cart cart, and a flat cart.

1 is an external view of a transportation carriage according to an embodiment of the present invention. It is an external view by the side of the bottom part of the trolley | bogie of FIG. It is a lower surface side external view of the upper frame material which comprises a base. It is an upper surface side external view of the lower frame material which comprises a base. It is the upper surface side external view (A) and lower surface side external view (B) of the heat insulating material installed in the inside of a base. It is an expanded cut end view of a base end part. It is a schematic longitudinal cross-sectional view of the trolley | bogie of FIG. It is principal part sectional drawing which expanded and showed the inside of a base. It is the principal part fracture | rupture external view (A) and principal part expanded sectional view of the container of other embodiment of this invention. (A) is sectional drawing of an example of the container of the conventional resin double structure, (B) is a partially broken external view of the other example of a container similarly.

Preferred embodiments of the present invention will be described with reference to the drawings.
FIG. 1 and FIG. 2 show the appearances of the top side and the bottom side of the article transporting apparatus according to one embodiment of the present invention, respectively, which is an application of the present invention to a transporting carriage.

  As shown in the figure, this transport cart 1 has casters 3, 3, 3, and 3 attached to the bottom four corners of a pedestal 2 that has a square shape in plan view. 3 can be slid and moved. Of the four casters 3, 3, 3, 3, the casters 3, 3 attached in the vicinity of the left and right sides of one short side of the opposite short side of the pedestal 2 are located inside the housing 31. A brake mechanism (not shown) is provided, and the displacement operation of the foot pedal 4 attached to the edge of the short side of the base 2 is transmitted to the brake mechanism via the link mechanism 5 and the rod 6. In this way, the movement of the carriage 1 can be controlled by operating the braking mechanism and applying the brake to the caster 3 or releasing the brake.

  In addition, the transport carriage 1 of this embodiment is made of a synthetic resin upper frame member 21 on the upper surface side and the same synthetic resin on the bottom surface side so that the pedestal 2 is suitable for transporting articles that need to be kept warm or cold. The lower frame material 22 is integrally stacked, and a synthetic resin heat insulating material 23 is inserted into the entire interior of the base 2 between both frame materials.

Specifically, as shown in FIG. 3, the upper frame member 21 protrudes downward from the lower surface with an appropriate width on substantially the entire lower surface on the inner surface side of the pedestal 2, and the longitudinal direction of the upper frame member 21. A plurality of vertical ribs 21a arranged along the horizontal direction and a plurality of horizontal ribs 21b arranged along the short direction are formed so as to intersect in a lattice pattern.
The edge portion 21c on the peripheral side of the upper frame member 21 is bent so as to protrude downward larger than the protruding width of the vertical and horizontal ribs 21a and 21b.

Further, as shown in FIG. 4, the lower frame member 22 protrudes upward from the upper surface with an appropriate width on substantially the entire upper surface on the inner surface side of the pedestal 2, like the upper frame member 21. A plurality of vertical ribs 22a arranged along the longitudinal direction of the lower frame member 22 and a plurality of horizontal ribs 22b arranged along the short direction are formed so as to intersect with each other in a lattice shape.
The lower frame member 22 has a side wall 22c raised higher than the ribs around the vertical and horizontal ribs 22a and 22b projecting from the upper surface thereof, and a flat portion 22d that is horizontally bent outward is connected to the upper end of the side wall 22c. The edge portion of the flat portion 22d is folded downward. On the flat portion 22d, two protruding bars 22e and 22e that protrude upward and are continuous over the entire circumference of the lower frame member 22 are provided.

The arrangement interval of the vertical ribs 21a adjacent to the vertical ribs 21a arranged on the lower surface of the upper frame member 21 and the arrangement interval of the vertical ribs 22a adjacent to the vertical ribs 22a arranged on the upper surface of the lower frame member 22 are set to be the same. In addition, the arrangement interval of the horizontal ribs 21b adjacent to the horizontal ribs 21b arranged on the lower surface of the upper frame member 21, and the arrangement interval of the horizontal ribs 22a adjacent to the horizontal ribs 22a arranged on the upper surface of the lower frame member 22 Are set to be the same (see number P in FIG. 8).
Further, the lattice-like ribs 21a, 21b, 22a, 22b formed on the upper and lower frame members 21, 22, respectively, are the same as the vertical ribs 22a of the lower frame member 22, with the upper and lower frame members 21, 22 being overlapped. The vertical ribs 21a of the upper frame member 21 are arranged at the center between the vertical ribs 22a, and the horizontal ribs 21b of the upper frame member 21 are arranged at the center between the horizontal ribs 22b and the horizontal ribs 22b of the lower frame member 22. In other words, the vertical and horizontal ribs facing each other are arranged so as to be shifted by a half pitch.
Furthermore, the lattice-like ribs 21a, 21b, 22a, 22b formed on the upper and lower frame members 21, 22 are slightly between the tip portions of the opposing ribs in a state where the upper and lower frame members 21, 22 are overlapped. (See reference numeral D in FIG. 8). You may make it insert the heat insulating material 23 in the clearance gap between the front-end | tip parts of a rib.

The heat insulating material 23 uses a synthetic resin material having good heat insulating properties such as expanded polystyrene, expanded polyurethane, expanded polypropylene, and expanded phenol, and is sized and superposed on the entire inner surfaces of the upper and lower frame members 21 and 22. It is formed to have a thickness installed inside the upper and lower frame members 21 and 22.
As shown in FIG. 5, the upper surface of the heat insulating material 23 has concave grooves 23 a into which lattice-shaped ribs 21 a and 21 b formed in the upper frame material 21 are immersed, and the lower surface has a lattice shape formed in the lower frame material 22. Recessed grooves 23b into which the ribs 22a and 22b are immersed are formed.

  The pedestal 2 made of these members has the upper frame member 21 and the lower frame member 22 stacked one above the other with the heat insulating material 23 interposed therebetween, and the lower surface of the peripheral side of the upper frame member 21 is lowered as shown in FIG. The edge portion 21c of the upper frame member 21 is fitted to the outer side of the flat portion 22 by joining to the flat portion 22d on the peripheral side of the frame member 22, and the protruding bars 22e and 22e on the flat portion 22d are moved upward by welding means such as vibration welding. The inner space of the frame members 21 and 22 is vertically attached to the lower surface of the frame member 21 by integrally bonding the lower surface of the upper frame member 21 and the joined portion of the flat portion 22d of the lower frame member 22 to each other. Can be formed by sealing. And the carriage 1 is assembled by attaching the caster 3 etc. to the base 2.

  The carriage 1 of this embodiment has excellent heat insulation performance because the pedestal 2 integrates the upper frame material 21 and the lower frame material 22 with the heat insulation material 23 sandwiched therebetween, and the upper and lower frame materials 21, Since the reinforcing ribs 21a, 21b, 22a, and 22b are arranged on the inner surface of the grid 22 in a lattice shape, high rigidity can be maintained.

The grid-like ribs 21a, 21b, 22a, and 22b provided on the upper and lower frame members 21 and 22, respectively, are connected to the vertical ribs 22a of the lower frame member 22 inside the base 2, as shown in FIGS. The vertical ribs 21a of the upper frame member 21 are arranged at the center between the vertical ribs 22a, and the horizontal ribs 21b of the upper frame member 21 are arranged at the center between the horizontal ribs 22b and the horizontal ribs 22b of the lower frame member 22. In addition, it is provided so that a slight gap is secured between the opposing ribs 21a, 22a and the end portions of the ribs 22b, 22b, so that heat moves through the contacting ribs. No, there is no possibility that the quality of an article that needs to be kept warm and kept on the pedestal 2 by heat transfer between the upper and lower frame members 21 and 22 is deteriorated.
In addition, the upper and lower frame members 21 and 22 have two protrusions 22e and 22e of the lower frame member 22 welded to the lower surface of the upper frame member 21 at the periphery thereof so that the inside of both frame members is sealed. However, there is no possibility of entering the inside of the pedestal 2 and reducing the heat insulating function of the heat insulating material 23 or corroding the inside of the pedestal 2.

FIG. 9 shows an apparatus for conveying articles according to another embodiment of the present invention, which is an application of the present invention to a container used for the polymerization container for cold storage.
As shown in the figure, the container 11 has an exterior material 13 and an interior material 14 stacked one above the other and the flange portions 13a and 14a joined at the end portions on the peripheral side of the inner and outer frame members 13 and 14 are fixed together by welding. Then, the container main body 12 having the side wall 12b raised around the bottom portion 12a having a rectangular shape in plan view is formed, and the heat insulating material 15 is installed between the exterior material 13 and the interior material 14 constituting the peripheral side wall 12b of the container main body 12 It is a thing. In addition, the cover body which comprises the container 11 with the container main body 12, or the support plate and lid body with heat insulation used with the container 11 are abbreviate | omitting illustration.

The heat insulating material 15 is not installed in the bottom portion 12a of the container body 12, and ribs 13a and 14a are projected in a lattice pattern on the inner surface of the outer frame member 13 and the inner surface of the inner frame member 14 in the bottom region. It is.
And the container 11 of this form is arrange | positioned so that the ribs 13a and 14 of the grid | lattice provided in the inside of the container main body 12 may be arrange | positioned between each rib to which adjacent ribs adjoin each other like the said form. Since the protruding positions are shifted, the contact area between the ribs 13a and 14a of the inner and outer frame members 13 and 14 is reduced, and the heat through the ribs 13a and 14a is maintained while maintaining the rigidity of the bottom 12a of the container body 21. The amount of movement is suppressed, and good heat insulation performance can be obtained.

  Note that the illustrated forms of the transportation cart and the container are examples, and the present invention can be applied to various transportation apparatuses used for storing and transporting articles.

DESCRIPTION OF SYMBOLS 1 Carriage cart (equipment transportation apparatus), 2 base (equipment main body), 21 upper frame material, 21a vertical rib, 21b horizontal rib, 22 lower frame material, 22a vertical rib, 22b horizontal rib, 23 heat insulating material, 3 casters 4 foot pedal, 5 link mechanism, 6 rod, 11 container (equipment for goods transportation), 12 container main body (device main body), 13 outer frame material, 14 inner frame material, 15 heat insulating material

Claims (6)

In the apparatus for transporting articles, the apparatus main body in which articles are accommodated is formed by overlapping the outer frame material and the inner frame material with a heat insulating material interposed between both frame materials.
A plurality of ribs are provided side by side on the inner surface of the outer frame material and the inner surface of the inner frame material at least in the region where the articles of the apparatus main body are accommodated,
The ribs formed on the inner surface of the inner and outer frame members are provided so that the ribs protruding from the inner surface of the inner frame member are arranged between the ribs protruding from the inner surface of the outer frame member when the two frame members are overlapped. An apparatus for transporting goods, characterized by having the above-described configuration.   2. The article transporting apparatus according to claim 1, wherein the apparatus has a configuration in which grid-like ribs are respectively provided on the inner surface of the outer frame member and the inner surface of the inner frame member.   3. The article transporting apparatus according to claim 1, wherein a heat insulating material is provided between the inner surface of the outer frame member provided with the rib and the inner surface of the inner frame member.   4. The article transporting device according to claim 3, wherein the surface of the heat insulating material has a configuration in which a concave groove into which a rib provided on the inner surface of the inner and outer frame members fits is formed.   The apparatus main body of the apparatus for goods transport in any one of Claims 1-4 is an apparatus for goods transport which is a container main body which surrounds the circumference | surroundings of the bottom part of a container by a side part. The apparatus main body of the apparatus for goods transport in any one of Claims 1-4 is an apparatus for goods transport which is a pedestal with a caster of a transport cart.

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