JP2019116259A - Transport cart - Google Patents

Abstract

To provide a transport cart that allows panels to be easily folded, as well as that can be nested with other transport carts.SOLUTION: A transport cart 10 comprises: a cart body 50; and multiple panels 11 to 16 that are configured to be freely deployed and folded with respect to the cart body 50. The multiple panels can be set into: a deployed mode in which the multiple panels are deployed into a box shape; and a folded mode in which the multiple panels are folded to allow nesting with other transport carts. In the folded mode, at least a part of each panel is folded around a first side frame 51 or a second side frame 52 to form a first panel group G1 including the first side frame and a second panel group G2 including the second side frame. Each rear panel 13 has a horizontal open space corresponding to a width of (n-1)×T or more, where: T is a thicker one of a total thickness T1 of the first panel group and a total thickness T2 of the second panel group; and n is a number of the transport carts that is allowed to be nested.SELECTED DRAWING: Figure 3

Description

  The present embodiment relates to a transport carriage that can be nested with another transport carriage.

  2. Description of the Related Art Conventionally, for example, in a store, a factory or the like, a transport truck for transporting a load such as food has been used. Such a transport truck has a truck body having a pair of side frames, and the truck body has a thermally insulating truck cover to keep the load such as food warm, cold or protected. It is attached. As such a carriage for carriage, for example, one disclosed in Patent Document 1 is known.

JP, 2013-233970, A

  However, the carriage cover of the conventional transportation carriage is made of, for example, a sewn sheet material, and is generally thin and flexible (see Patent Document 1). For this reason, in the conventional truck cover, there is a problem that it is difficult to sufficiently improve the heat insulation performance or sufficiently protect the internal load.

  On the other hand, it is conceivable to assemble the heat insulation panel into a box shape and mount it on the carriage main body, but in this case, the work of disassembling or folding the heat insulation panel may be complicated. In addition, there is a problem that it is difficult to nest the transport carriage with another transport carriage depending on the positional relationship of the heat insulating panels after disassembly.

  An object of the present disclosure is to provide a transport carriage that can be easily folded and can be nested with other transport carriages.

  The transport carriage according to the present embodiment is a transport carriage that can be nested with another transport carriage, and includes a first side frame, a second side frame, the first side frame, and the second side frame. And a plurality of panels provided so as to be openable and foldable relative to the carriage body, the plurality of panels forming the plurality of panels in a box shape In the unfolded state, and the folded state in which the plurality of panels can be folded to allow nesting with the other carriages, at least a portion of each panel can be in the folded state. By folding around the side frame or the second side frame, a first panel group including the first side frame and a second panel group including the second side frame are formed, and the first panel group is formed. Total thickness of When the thickness of the thicker one of the total thickness of the second panel group is T and the number of the transportable carriages that can be nested is n, the back panel located on the back side among the plurality of panels is horizontal It is open in the direction by a width of (n-1) × T or more.

  In the transport carriage according to the present embodiment, in the folded state, a part of the back panel may remain on the back side without being folded.

  In the transport bogie according to the present embodiment, the bogie main body may have two wheels respectively below the first side frame and the second side frame.

  In the transport truck according to the present embodiment, each panel may include an insulation panel.

  In the transport truck according to the present embodiment, the heat insulating panel may include a vacuum heat insulating material or a foam heat insulating material.

  In the transport carriage according to the present embodiment, the plurality of panels are at least a top panel, a front panel, the back panel, a first side panel on the first side frame side, and the second side frame side. And a second side panel.

  In the transport truck according to the present embodiment, the plurality of panels may further include a bottom panel.

  In the transport carriage according to the present embodiment, the front panel may include a plurality of foldable front partial panels.

  In the transport bogie according to the present embodiment, the bogie main body further includes a foldable bottom plate, and the bottom plate is folded around the first side frame or the second side frame to form the first side frame. A panel group or the second panel group may be configured.

  In the transport truck according to the present embodiment, the plurality of panels may be detachably attached to each other.

  In the transport carriage according to the present embodiment, the plurality of panels have a panel provided with a pinched portion, and a panel provided with a pinched portion sandwiching the pinched portion, the pinched portion and the pinched portion A surface fastener may be provided in each of the sandwiching portions.

  In the transport truck according to the present embodiment, the pinching portion may have a loop portion of a surface fastener.

  According to the present embodiment, the panel can be easily folded and can be nested with another transport carriage.

FIG. 1 is an exploded perspective view showing a state in which each panel of the transport carriage according to the first embodiment is removed. FIG. 2 is a perspective view showing the transport carriage according to the first embodiment, in which each panel is in the unfolded state. FIG. 3 is a perspective view showing the transport carriage according to the first embodiment, in which each panel is in a folded state. FIG. 4 is a perspective view showing the bogie main body. FIG. 5 is a partially enlarged front view of the bogie main body. FIG. 6 is a cross-sectional view showing each panel. FIGS. 7A and 7B are cross-sectional views showing vacuum heat insulating materials of the respective panels. 8 (a) and 8 (b) are a plan view and a front view showing a state before the panels of the transport carriage according to the first embodiment are changed from the unfolded state to the folded state, respectively. FIGS. 9 (a) and 9 (b) are a plan view and a front view, respectively, showing steps of changing the front panel of the transport carriage according to the first embodiment from the unfolded state to the folded state. FIGS. 10 (a) to 10 (c) are plan views showing steps of changing the front panel of the transport carriage according to the first embodiment from the unfolded state to the folded state. FIGS. 11 (a) and 11 (b) are a plan view and a front view showing a process of changing the front panel of the transport carriage according to the first embodiment from the unfolded state to the folded state, respectively. FIGS. 12 (a) and 12 (b) are a plan view and a front view, respectively, showing steps of changing the bottom panel of the transport carriage according to the first embodiment from the unfolded state to the folded state. FIGS. 13 (a) and 13 (b) are a plan view and a front view, respectively, showing steps of changing the bottom plate of the transport carriage according to the first embodiment from the unfolded state to the folded state. FIGS. 14 (a) and 14 (b) are a plan view and a front view, respectively, showing steps of changing the top panel of the transport carriage according to the first embodiment from the unfolded state to the folded state. Fig.15 (a)-(c) is a top view which shows the process of making the back panel of the trolley | bogie for transport by 1st Embodiment into a folding state from an expansion | deployment state. 16 (a) to 16 (c) are plan views showing a process of nesting a plurality of transport carriages. FIGS. 17 (a) and 17 (b) are schematic plan views for explaining the operation at the time of nesting the transport carriages. FIG. 18 is a plan view showing a transport carriage according to one modification, in which each panel is in an expanded state. FIG. 19 is a perspective view showing a bogie main body according to a modification. FIG. 20 is a perspective view showing the transport carriage according to the second embodiment, in which each panel is in the unfolded state. FIG. 21 is a perspective view showing the transport carriage according to the second embodiment, in which only the front panel is in a folded state. FIG. 22 is a perspective view showing the transport carriage according to the second embodiment, in which each panel is in a folded state. FIGS. 23 (a) to 23 (c) are plan views showing steps of changing the front panel of the transport carriage according to the second embodiment from the unfolded state to the folded state. Fig.24 (a)-(c) is a front view which shows the process of making the top | upper surface panel of the trolley | bogie for transport by 2nd Embodiment into a folding state from an expansion | deployment state. FIGS. 25 (a) and 25 (b) are plan views showing steps of changing the rear panel of the transport carriage according to the second embodiment from the unfolded state to the folded state. FIGS. 26 (a) to 26 (c) are front views showing the process of changing the bottom panel of the transport carriage in the modified example of the second embodiment from the unfolded state to the folded state. FIGS. 27 (a) and 27 (b) are partially enlarged plan views showing the attachment portion between the front panel and the first side panel in the second embodiment. FIG. 28 (a) is a partially enlarged plan view showing the attachment portion between the front panel and the first side panel in the second embodiment, and FIG. 28 (b) is a first embodiment in the second embodiment. It is a partial enlarged plan view which shows a side panel. FIG. 29 is a partially enlarged plan view showing the attachment portion between the front panel and the first side panel in a modification of the second embodiment. FIG. 30 is a partially enlarged plan view showing the attachment portion between the back panel and the first side panel in the second embodiment. FIG. 31 is a partially enlarged front view showing the attachment portion of the top panel and the first side panel in the second embodiment. FIG. 32 is a partially enlarged front view showing the attachment portion of the bottom panel and the gap panel in the second embodiment. FIG. 33 is a cross-sectional view showing each panel in the second embodiment. FIGS. 34 (a) and 34 (b) are partially enlarged plan views showing the attachment portion between the back panel and the first side panel in a modification of the second embodiment. 35 (a) and 35 (b) are partially enlarged front views showing the attachment portion between the top panel and the first side panel in a modification of the second embodiment.

First Embodiment
The first embodiment will be described below with reference to the drawings. Each figure shown below is shown typically. Therefore, the size and shape of each part are appropriately exaggerated to facilitate understanding. Moreover, it is possible to change suitably and to implement in the range which does not deviate from a technical thought. In the respective drawings shown below, the same reference numerals are given to the same parts, and a part of detailed description may be omitted. In addition, numerical values and material names such as dimensions of each member described in the present specification are an example as an embodiment, and the present invention is not limited to this and can be appropriately selected and used. In the present specification, terms specifying shape and geometrical conditions, for example, terms such as parallel, orthogonal, and vertical, include, in addition to their strict meanings, substantially the same states.

  In the following embodiments, the “X direction” is a direction parallel to the longitudinal direction of the transport carriage and parallel to the floor surface on which the transport carriage is disposed, and the “Y direction” is the X direction In a direction perpendicular to the floor surface on which the transport carriage is disposed. The “Z direction” is a direction parallel to the vertical direction. In addition, “front” is a surface perpendicular to the floor and faces the direction in which the other transport carriages approach when nesting, and “rear” is perpendicular to the floor. A face, which faces the front. "Top" is the surface parallel to the floor and is the upper surface of the transport truck, "Bottom" is the surface parallel to the floor and the bottom of the transport truck Say the face of The "side surface" is a surface perpendicular to the floor surface and means the surface on the longitudinal direction end side of the transport carriage.

(Configuration of transport carriage)
The configuration of the transport carriage according to the present embodiment will be described with reference to FIGS. 1 to 5. FIG. 1 is an exploded perspective view showing a state in which each panel of the transport carriage according to the present embodiment is removed. FIG. 2 is a perspective view in which the transport carriage according to the present embodiment is in the unfolded state. FIG. 3 is a perspective view of the transport carriage according to the present embodiment in a folded state. FIG. 4 is a perspective view of the bogie main body. FIG. 5 is a partially enlarged front view of the bogie main body.

  As shown in FIG. 1, the transport carriage 10 according to the present embodiment includes a carriage main body 50 and a plurality of (in this case, six) panels 11 to 6 provided in an openable and foldable manner with respect to the carriage main body 50, respectively. It has 16 and. Among them, the plurality of panels 11 to 16 are unfolded and assembled in a box shape (see FIG. 2), and folded to be able to nest with other carriages by folding the plurality of panels 11 to 16 (See FIG. 3).

  The transport truck 10 is used, for example, in a store, a factory, a distribution process, etc., when storing or transporting a load requiring insulation or heat retention. In such a transport truck 10, the temperature change inside the transport truck 10 is minimized by enclosing the storage space 20 (described later) capable of storing the load by the six panels 11-16. It is configured to be suppressed. On the other hand, when the transport carriages 10 are not used, it is possible to compactly store the plurality of transport carriages 10 by nesting with the other identical transport carriages 10 (in a nested manner). is there.

  Next, with reference to FIG. 4, the structure of the trolley | bogie main body 50 is demonstrated. FIG. 4 is a perspective view showing the bogie main body 50. As shown in FIG. As shown in FIG. 4, the bogie main body 50 has a first side frame 51, a second side frame 52, and a connecting member 53 for connecting the first side frame 51 and the second side frame 52 to each other. There is. In this case, the bogie main body 50 has six wheels 61 to 66, and the wheels 61 to 66 are attached downward from the connecting member 53, respectively.

  The first side frame 51 is provided at one end (longitudinal X-direction end) of the carriage body 50 in the longitudinal direction, and protrudes upward (positive in the Z direction) from the connecting member 53. The first side frame 51 has a lower support 54 connected to the connecting member 53, an annular (rectangular) peripheral frame 55 connected to the lower support 54, and a horizontal direction (Y And a plurality of crosspieces 56 extending in the The plurality of cross bars 56 are arranged at equal intervals along the vertical direction (Z direction). Below the first side frame 51, two wheels 61 and 62 are provided.

  The second side frame 52 is provided at the other end (the X direction plus side end) of the carriage main body 50 in the longitudinal direction, and protrudes upward (the Z direction plus side) from the connecting member 53. The configuration of the second side frame 52 is substantially the same as the configuration of the first side frame 51 described above. Below the second side frame 52, two wheels 65 and 66 are provided.

  The connecting member 53 has a substantially royal shape in plan view (a shape in which two “E” s are back-to-back), and the central frame 57 extending in the longitudinal direction (X direction) of the carriage main body 50 and the central frame 57 are provided. It has three wheel mounting frames 67-69 connected.

  The center frame 57 is located at a substantially central portion in the width direction (Y direction) of the carriage body 50. The central frame 57 has sufficient strength to hold the loads of the transport carriage 10 and its load, while having a narrow width that does not hinder the nesting of the transport carriages 10. . Specifically, the width Wa (length in the Y direction) of the central frame 57 may be 5% or more and 33% or less of the maximum width Wb (length in the Y direction) of the dolly main body 50. Further, although the intervals Pa and Pb depend on the maximum width Wb of the carriage main body 50, they may be, for example, 20 mm or more and 200 mm or less.

  The three wheel mounting frames 67 to 69 extend in the direction (Y direction) orthogonal to the central frame 57, respectively. The wheel mounting frames 67 to 69 include a first wheel mounting frame 67 located on the first side frame 51 side, and a second wheel mounting frame 68 located between the first side frame 51 and the second side frame 52. , And a third wheel mounting frame 69 located on the second side frame 52 side.

  The first wheel mounting frame 67 and the second wheel mounting frame 68 are disposed at an interval Pa in the longitudinal direction (X direction) of the bogie main body 50. The second wheel mounting frame 68 and the third wheel mounting frame 69 are disposed at an interval Pb in the longitudinal direction (X direction) of the bogie main body 50. In this case, the distance Pa between the first wheel mounting frame 67 and the second wheel mounting frame 68 may be equal to the distance Pb between the second wheel mounting frame 68 and the third wheel mounting frame 69 (Pa = Pb), It may be different from the interval Pb.

  The first wheel mounting frame 67 is provided at one longitudinal end (X direction negative side end) of the central frame 57. A first wheel 61 and a second wheel 62 are attached to both longitudinal direction end portions (Y-direction end portions) of the first wheel mounting frame 67, respectively.

  The second wheel mounting frame 68 is provided at a central longitudinal portion (central portion in the X direction) of the central frame 57. The third wheel 63 and the fourth wheel 64 are attached to both longitudinal direction end portions (Y-direction end portions) of the second wheel mounting frame 68, respectively. The width (length in the X direction) Wc of the second wheel mounting frame 68 is so thin as not to interfere with the nesting of the transport carriages 10 with each other. Specifically, the width Wc of the second wheel mounting frame 68 may be 3.7% or more and 12.6% or less of the maximum length (length in the X direction) La of the bogie main body 50. The width Wc may be, for example, 5 mm or more and 150 mm or less, although it depends on the maximum length La of the dolly main body 50.

  The third wheel mounting frame 69 is provided at the other end (the X direction plus side end) of the center frame 57 in the longitudinal direction. The fifth wheel 65 and the sixth wheel 66 are attached to both longitudinal direction end portions (Y-direction end portions) of the third wheel mounting frame 69, respectively.

  The wheels 61 to 66 are composed of the first wheel 61, the second wheel 62, the third wheel 63, the fourth wheel 64, the fifth wheel 65, and the sixth wheel 66, as described above. Among them, the first wheel 61, the second wheel 62, the fifth wheel 65, and the sixth wheel 66 are universal wheels, and rotate along horizontal axles and extend in the vertical direction (Z direction) It is pivotable by an axis. On the other hand, the third wheel 63 and the fourth wheel 64 are fixed wheels, and rotate along horizontal axles, but can not turn around the vertical direction (Z direction) axis.

  The wheels 61 to 66 move forward and backward with the central fixed wheel (the third wheel 63 and the fourth wheel 64) so that they can travel straight ahead stably when the load is placed on the transport carriage 10 and traveled. The two wheels of any one of the free wheels (the first wheel 61 and the second wheel 62, or the fifth wheel 65 and the sixth wheel 66) may be combined and grounded. When the load is not placed on the transport carriage 10, the central fixed wheel (the third wheel 63 and the fourth wheel 64) is grounded in order to facilitate turning and nesting and to facilitate small turning. Instead, only the front and rear universal wheels (the first wheel 61, the second wheel 62, the fifth wheel 65, and the sixth wheel 66) may be grounded. In addition, the trolley | bogie main body 50 does not need to have the wheel 61, 62, 65, 66 of four wheels, and may not have the 2nd wheel attachment frame 68 not only this.

  Further, a foldable bottom plate 58 is provided on the connection member 53. The bottom plate 58 has a substantially rectangular parallelepiped shape and extends between the first side frame 51 and the second side frame 52 in the longitudinal direction (X direction), and the first side frame 51 and the first side frame 51 in the lateral direction (Y direction). The two side frames 52 have substantially the same length. The bottom plate 58 has sufficient strength to hold the load of the load of the transport carriage 10, and its thickness Ta may be, for example, 1 cm or more and 20 cm or less, preferably 3 cm or more and 15 cm or less.

  The bottom plate 58 is movable with respect to the connection member 53, and in the deployed state (see FIGS. 2 and 4) disposed on the connection member 53, the bottom plate 58 is lifted with respect to the connection member 53. It can be in a folded state (see FIG. 3) folded around it. That is, when the panels 11 to 16 are deployed and assembled in a box shape (see FIGS. 2 and 4), the bottom plate 58 is disposed in the horizontal deployed state. On the other hand, when the plurality of panels 11 to 16 are folded and in the folded state (see FIG. 3), the bottom plate 58 is vertically lifted and disposed in the folded state.

  As shown in FIG. 5, the bottom plate 58 is rotatable around a fulcrum portion 58 a provided on the inner side (the negative side in the X direction) of the lower support portion 54. The fulcrum portion 58a is located below (the Z direction minus side) the bottom panel 16 (described later). In this case, the entire connecting portion (fulcrum portion 58a) connecting the bottom plate 58 and the lower support portion 54 is located outward of the panels 11-16. Thus, as described later, when the periphery is surrounded by a heat insulating material, the connecting portion is not disposed straddling the housing space 20 (described later) and the outside air, and the connecting portion becomes a heat bridge. Thus, the heat insulating property of the housing space 20 can be prevented from being reduced. Further, while the bottom plate 58 is moved between the folded state and the unfolded state, there is no possibility that the connecting portion (fulcrum portion 58a) interferes with the panels 11-16.

(Configuration of panel)
Next, the configuration of the panels 11 to 16 will be described with reference to FIGS. 1 to 3.

  The panels 11-16 as a whole are provided so as to be deployable and foldable with respect to the bogie main body 50, and as described above, can be nested and unfolded and assembled in a box shape (FIG. 2) It can be in the folded state (FIG. 3).

  FIG. 2 shows the case where the panels 11 to 16 are in the unfolded state. As shown in FIG. 2, the panels 11 to 16 have a substantially rectangular parallelepiped shape in the unfolded state, and the top panel 11, the front panel 12, the back panel 13, the first side panel 14, and the second A side panel 15 and a bottom panel 16 are included. The top panel 11, the first side panel 14, the second side panel 15, the back panel 13, the front panel 12, and the bottom panel 16 have their main surfaces (of the six surfaces constituting each panel) And the widest pair of mutually facing surfaces) has a substantially rectangular shape. Moreover, the main surface of the front panel 12 and the back panel 13 have substantially the same size, and the first side panel 14 and the second side panel 15 have substantially the same main surfaces. It has a size. Each panel 11-16 consists of a plate-shaped member which has rigidity, respectively, and it is made not to deform | transform flexibly at the time of use.

  It is possible to form the accommodation space 20 which accommodates a load by being surrounded by six panels 11-16 in the unfolded state. When each of the panels 11 to 16 is in the unfolded state, a substantially rectangular parallelepiped accommodation space 20 is formed between the panels 11 to 16. In the case where the housing space 20 is surrounded by a heat insulating material as described later, inflow and outflow of heat with the outside are limited, and heat insulation can be maintained. In addition, at least some of the six panels 11 to 16 are provided so as to be movable with respect to the other adjacent panels 11 to 16, respectively. As a result, the transport carriage 10 can be changed from the unfolded state in which the accommodation space 20 is formed to a folded state in which the accommodation space 20 is not formed and from the unfolded state to the unfolded state. For this reason, when the transport carriage 10 is not used, the panels 11 to 16 can be nested with the other transport carriages 10 by folding them. Further, in the unfolded state, the peripheral edges of the six panels 11 to 16 are in close contact with any of the other panels 11 to 16, whereby the airtightness of the storage space 20 is secured.

  The six panels 11 to 16 each include a heat insulating panel having a heat insulating portion 40 including a vacuum heat insulating material 41 as described later (see FIG. 6). In the present embodiment, the six panels 11 to 16 each include the vacuum heat insulating material 41, but the present invention is not limited to this. Some or all of the panels 11-16 may include thermal insulation, such as, for example, foam insulation.

  Next, the configuration of each of the panels 11 to 16 will be further described. In the following, “panels 11 to 16 (partial panels) are parallel (perpendicular) to a predetermined surface” ”means“ the main surface of panels 11 to 16 (partial panels) is to a predetermined surface It means "being parallel (vertical)".

(Top panel)
The top panel 11 is a panel positioned on the top surface side (the positive side in the Z direction) in the unfolded state (FIG. 2), and is disposed parallel to the horizontal surface (XY plane). Further, in the unfolded state, the top panel 11 includes the first side frame 51 and the second side frame 52 of the carriage main body 50, the first side panel 14, the second side panel 15, the back panel 13, and the front panel. And 12 are disposed above.

  The top panel 11 has a structure that can be partially opened and closed, and between the first top frame 51 and the second side frame 52, the first top panel 11a located on the first side frame 51 side. It has the second top panel partial panel 11 b located and the third top panel partial panel 11 c positioned on the second side frame 52 side. Among them, the second top partial panel 11b is foldably attached to the third top partial panel 11c via the top hinge member 21a (see FIG. 14B). The second top partial panel 11b is detachably attached to the first top partial panel 11a via the surface fastener (removable member) 21b (see FIG. 14B), and the surface fastener 21b is removed. In this case, the second top partial panel 11b is configured to be separated from the first top partial panel 11a.

  The first top partial panel 11a, the second top partial panel 11b, and the third top partial panel 11c are arranged horizontally (parallel to the XY plane) in the unfolded state (FIG. 2). On the other hand, in the folded state (FIG. 3), the first top partial panel 11a and the third top partial panel 11c are continuously arranged horizontally. On the other hand, the second top partial panel 11b is folded downward by being removed from the first top partial panel 11a, and is arranged to hang down from the third top partial panel 11c. At this time, the second top panel 11b is disposed around the inner side of the second side frame 52 and on the inner side (the negative side in the X direction) with respect to the folded bottom plate 58, and is parallel to the YZ plane.

(Front panel)
The front panel 12 is a panel positioned on the front side (the negative side in the Y direction) in the unfolded state (FIG. 2), and is disposed perpendicular (parallel to the ZX plane) to a horizontal plane (the XY plane). Further, in the unfolded state, the front panel 12 is disposed between the first side frame 51 and the second side frame 52 of the carriage main body 50.

  The front panel 12 has a foldable structure, and a second front panel 12 a located on the side of the first side frame 51 and a second front frame substantially located between the first side frame 51 and the second side frame 52. It has a front partial panel 12 b and a third front partial panel 12 c located on the second side frame 52 side. Among them, the first front partial panel 12a is foldably attached to the first side panel 14 via the first front hinge member 22a (see FIGS. 9A and 10A to 10C). . Also, the second front partial panel 12b is foldably attached to the first front partial panel 12a via the second front hinge member 22b (see FIGS. 9A and 10A to 10C). It is done. Furthermore, the third front partial panel 12c is foldably attached to the second front partial panel 12b via the third front hinge member 22c (see FIGS. 9A and 10A to 10C). There is. The third front partial panel 12c and the second side panel 15 may be separated from each other, and may be detachably attached to each other via, for example, a surface fastener (detachable member) not shown.

  The first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are all arranged perpendicular (parallel to the ZX plane) to the horizontal plane (XY plane) in the unfolded state (FIG. 2) Ru. On the other hand, in the folded state (FIG. 3), the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are folded like a folding screen so as to overlap each other, and further the vertical axis (Z direction It rotates around an axis), and is arranged on the outside (the X direction minus side) of the first side panel 14. At this time, the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are folded and disposed around the outer side of the first side frame 51, and are parallel to the YZ plane.

  As described above, by arranging the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c outside the first side frame 51, the storage space 20 for storing the load is widely secured. can do. In addition, when lifting the bottom plate 58 toward the second side frame 52, the first front partial panel 12a, the second front partial panel 12b and the third front partial panel 12c are prevented from interfering with the bottom plate 58 in motion. There is. The widths of the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c (the length in the Y direction in the folded state) may be substantially the same. Further, the widths of the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are substantially the same as the width (length in the Y direction) of the first side frame 51, or the first side frame 51. It is longer than the width of the

(Rear panel)
The back panel 13 is a panel positioned on the back side (plus side in the Y direction) in the unfolded state (FIG. 2), and is disposed perpendicular (parallel to the ZX plane) to the horizontal plane (XY plane). Further, in the unfolded state, the back panel 13 is disposed between the first side frame 51 and the second side frame 52 of the carriage main body 50.

  The rear panel 13 has a foldable structure, and includes a first rear partial panel 13a located on the first side frame 51 side and a second rear partial panel 13b located on the second side frame 52 side. There is. Among them, the second rear partial panel 13b is foldably attached to the first rear partial panel 13a via the first rear hinge member 23a (see FIGS. 15A to 15C). In addition, the first back surface partial panel 13a is movably attached to the first side surface panel 14 via the second back surface hinge member 23b (see FIGS. 15 (a) to 15 (c)). Not only this but the 1st back partial panel 13a may be fixed so that it can not fold with respect to the 1st side panel 14. As shown in FIG.

  Both the first back surface partial panel 13a and the second back surface partial panel 13b are disposed perpendicularly (parallel to the ZX plane) to the horizontal plane (XY plane) in the unfolded state (FIG. 2). On the other hand, in the folded state (FIG. 3), the second back partial panel 13b is folded so as to overlap the first back partial panel 13a, and is disposed inside (the Y direction minus side) of the first back partial panel 13a. . At this time, the first back partial panel 13a remains on the back side without being folded. That is, even in the folded state, the first back partial panel 13a is at the same position as in the unfolded state, and is disposed perpendicular (parallel to the ZX plane) to the horizontal plane (XY plane). In addition, the first back surface partial panel 13a and the second back surface partial panel 13b are folded and disposed perpendicularly to the first side frame 51, and are parallel to the ZX plane. Thus, in the folded state, the back panel 13 is opened by removing the second back partial panel 13 b. The portion where the back panel 13 is opened has a predetermined width W1 in the horizontal direction (X direction) (FIG. 3). On the other hand, the overlapping portion of the first back surface partial panel 13a and the second back surface partial panel 13b is covered without being opened and has a predetermined width W2 in the horizontal direction (X direction) (FIG. 3). The back panel 13 may be open over the entire area in the horizontal direction (X direction) depending on how the first back partial panel 13a and the second back partial panel 13b are folded.

(First side panel)
The first side panel 14 is a panel positioned on the first side frame 51 side (X direction minus side) in both the unfolded state (FIG. 2) and the folded state (FIG. 3), relative to the horizontal plane (XY plane) It is arranged vertically (parallel to the YZ plane). The first side panel 14 is formed of a single plate-like member. In addition, the first side panel 14 is disposed on the outer periphery of the first side frame 51 of the carriage main body 50 without moving in both the unfolded state (FIG. 2) and the folded state (FIG. 3), in the YZ plane. It is parallel. The first side panel 14 has such a size as to cover the entire outside of the first side frame 51, and is fixed to the first side frame 51 by connecting means (not shown).

(2nd side panel)
The second side panel 15 is a panel positioned on the second side frame 52 side (plus side in the X direction) in both the unfolded state (FIG. 2) and the folded state (FIG. 3), relative to the horizontal plane (XY plane) It is arranged vertically (parallel to the YZ plane). The second side panel 15 is formed of a single plate-like member. Also, the second side panel 15 is disposed on the outer periphery of the second side frame 52 of the carriage main body 50 without moving in both the unfolded state (FIG. 2) and the folded state (FIG. 3), and in the YZ plane. It is parallel. The second side panel 15 has a size sufficient to cover the entire outside of the second side frame 52, and is fixed to the second side frame 52 by connection means (not shown).

(Bottom panel)
The bottom panel 16 is a panel positioned on the bottom side (the negative side in the Z direction) in the unfolded state (FIG. 2), and is disposed parallel to the horizontal plane (XY plane). Further, in the unfolded state, the bottom panel 16 is disposed on the bottom plate 58 of the bogie main body 50 and between the first side frame 51 and the second side frame 52. The bottom panel 16 is composed of a single plate-like member and has a foldable structure by lifting. The bottom panel 16 is foldably attached to the first side frame 51 via a bottom hinge member 26a (see FIG. 12B).

  The bottom panels 16 are both arranged parallel to the horizontal plane (XY plane) in the unfolded state (FIG. 2). On the other hand, in the folded state (FIG. 3), the bottom panel 16 is folded so as to overlap the inner side (plus side in the X direction) of the first side frame 51, and is positioned around the inner side of the first side frame 51. That is, in the folded state, the bottom panel 16 is disposed perpendicular (parallel to the YZ plane) to the horizontal plane (XY plane). At this time, the bottom panel 16 is detachably attached to the first side frame 51 via, for example, a surface fastener (removable member) 26b (see FIG. 12B). In this case, the surface fasteners 26 b can easily attach the bottom panel 16 to the first side frame 51 and remove the bottom panel 16 from the first side frame 51. In addition, since the surface fastener 26 b has a certain area, the bottom panel 16 can be attached to the first side frame 51 without strictly aligning the bottom panel 16 with the first side frame 51. . Furthermore, it is possible to absorb positional deviation and dimensional error of the bottom panel 16 in the surface direction, and it is easy to finely adjust the mounting position of the bottom panel 16 with respect to the first side frame 51.

  The top hinge 21a, the first front hinge 22a, the second front hinge 22b, the third front hinge 22c, the first rear hinge 23a, the second rear hinge 23b, and the bottom hinge 26a Each may be configured of, for example, a bendable connection cloth (connection member). As described above, by forming the hinge members 21a, 22a, 22b, 22c, 23a, 23a, 23b, and 26a from the connection cloth, the panels (partial panels) can be easily expanded and folded.

  FIG. 3 shows the case where the panels 11 to 16 are in the folded state, as described above. As shown in FIG. 3, in the folded state, at least a part of each of the panels 11 to 16 is folded around the first side frame 51 or the second side frame 52, respectively.

  That is, around the first side frame 51, the third front partial panel 12c, the second front partial panel 12b, the first front partial panel 12a, and the first side panel are arranged in order from the outside (minus side in the X direction). 14 and the bottom panel 16 overlap. The first side frame 51 is located between the first side panel 14 and the bottom panel 16. Further, around the second side frame 52, the second side panel 15, the bottom plate 58, and the second top panel 11b overlap in order from the outer side (plus side in the X direction). The second side frame 52 is positioned between the second side panel 15 and the bottom plate 58.

  In this case, a first panel group G1 and a second panel group G2 are formed around the first side frame 51 and the second side frame 52, respectively. Among them, the first panel group G1 includes the third front partial panel 12c, the second front partial panel 12b, the first front partial panel 12a, the first side panel 14, the first side frame 51, and the bottom panel 16 And composed of The second panel group G2 is configured by the second side panel 15, the second side frame 52, the bottom plate 58, and the second top partial panel 11b. In the present embodiment, the first panel group G1 (second panel group G2) includes not only all or part of the panels 11 to 16 but also the first side frame 51 (second side frame 52) and the like. The bottom plate 58 is also included.

  In the present embodiment, it is assumed that the thicker of the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 is T, and the number of the transport carriages 10 that can be nested is n. . In this case, the open width W1 of the back panel 13 described above has a length of (n-1) × T or more in the horizontal direction (X direction). For example, when the number of transportable carriages 10 that can be nested is three as described later, W1 has a length of 2T or more. In this manner, by setting the width W1 of the open portion of the back panel 13 to a length of (n-1) × T or more, it is possible to set the carriage 10 to the other through the open portion of the back panel 13 It is possible to nest the transport carriages 10 of the On the other hand, as a comparative example, when the open width W1 of the back panel 13 is less than (n-1) × T, another transport carriage 10 interferes with part of the transport carriage 10, and n units Nesting the transport carriages 10 is substantially difficult.

  The thickness of each of the panels 11 to 16 is preferably, for example, 5 mm or more and 50 mm or less. In the present embodiment, the case where the thicknesses of the panels 11 to 16 are the same will be described as an example, but the thicknesses of the panels 11 to 16 may be different from each other. Moreover, the thickness (the length in the X direction) of the first side frame 51 and the second side frame 52 is, for example, 10 mm or more and 50 mm or less. The total thickness T1 (T2) of the first panel group G1 (second panel group G2) is the total thickness of the panels 11 to 12 and 14 to 16 included in the first panel group G1 (second panel group G2). Of the side frame 51, the second side frame 52, and the bottom plate 58, the distance between the outer surface of the outermost member and the inner surface of the innermost member. In this case, it is preferable that the sum of the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 be as small as possible. By reducing the total of the total thickness T1 and the total thickness T2, the number of transportable carriages 10 that can be nested can be increased.

  The distance Pa (FIG. 4) between the first wheel mounting frame 67 and the second wheel mounting frame 68 described above and the distance Pb (FIG. 4) between the second wheel mounting frame 68 and the third wheel mounting frame 69 are It is necessary to satisfy the relationship of “T × n <Pa” and “Wc × n <Pb”. However, when the width of the wheel mounting frames 67 and 69 is wider (larger) than T, it is necessary to satisfy the relationship of “width of the wheel mounting frames 67 and 69 × n <Pa” and “Wc × n <Pb”.

(Internal structure of panel)
Next, the structure of each panel 11-16 is demonstrated. FIG. 6 is a cross-sectional view showing the heat insulating portion 40 of each of the panels 11-16. 7A and 7B are cross-sectional views showing the vacuum heat insulating material 41 included in the heat insulating portion 40. FIG.

  As shown in FIG. 6, the heat insulating portion 40 of each of the panels 11 to 16 includes the vacuum heat insulating material 41, the foam heat insulating material 42, the heat insulating envelope portion 43, the heat insulating material protecting member 44, and the heat shielding sheet 45. Have.

  Among them, the vacuum heat insulating material 41 is attached to the foam heat insulating material 42. The vacuum heat insulating material 41 is composed of a core material 41a and an exterior material 41b provided around the core material 41a. A foamed heat insulating material 42 is disposed on the storage space 20 side (lower side in FIG. 6) of the vacuum heat insulating material 41. As a result, the risk of breakage of the vacuum heat insulating material 41 when the load placed in the storage space 20 hits can be reduced.

  The foamed heat insulating material 42 can be disposed adjacent to at least the accommodation space 20 side of the vacuum heat insulating material 41. As the foam insulation material 42, a known foam insulation material can be used, and for example, polyurethane foam may be used.

  The heat insulating envelope 43 is formed to surround the vacuum heat insulating material 41. The heat insulating envelope 43 is disposed on the foam heat insulating material 42 and is fixed to the foam heat insulating material 42. By arranging the heat insulating envelope 43 so as to surround the vacuum heat insulating material 41, the heat insulating performance is improved as compared with the case where the heat insulating envelope 43 is not provided. Moreover, the panel configuration which makes the vacuum heat insulating material 41 substantially the same area as the foam heat insulating material 42 and does not use the heat insulation envelope 43 is possible. In this case, the heat insulation performance can be further improved, but there is a possibility that the vacuum insulation material 41 may be broken due to the infiltration of sharp objects from the side due to the absence of the heat insulation envelope 43. In addition, a slight gap is formed between the heat insulating envelope 43 and the vacuum heat insulating material 41, and even when the size of the vacuum heat insulating material 41 is slightly changed, the vacuum heat insulating material 41 is not heat insulated outside It can be accommodated in the enclosure 43.

  In addition, the heat insulating material protection member 44 is provided on the heat insulating envelope 43 and plays a role mainly protecting the vacuum heat insulating material 41. As the heat insulating material protecting member 44, for example, a protective material made of an organic polymer can be used.

  The heat shield sheet 45 is disposed so as to wrap the entire outer periphery of the vacuum heat insulating material 41, the foam heat insulating material 42, the heat insulating envelope 43 and the heat insulating material protecting member 44. The heat shield sheet 45 can be disposed so as to cover the entire vacuum heat insulating material 41 and the foamed heat insulating material 42. As the heat shield sheet 45, for example, a multilayer sheet including a metal foil, a vapor deposition sheet in which a vapor deposition layer is formed on one side of a resin sheet, and the like can be given.

  Next, the vacuum heat insulating material 41 will be further described. As shown to Fig.7 (a), the vacuum heat insulating material 41 is comprised from the core material 41a and the exterior material 41b which has gas-barrier property, and is a heat insulating material obtained by pressure-reducing the inside of the exterior material 41b. FIG. 7 (b) is another example of the vacuum heat insulating material 41. In FIG. 7A, the air gaps are formed at both ends inside the vacuum heat insulating material 41, but in FIG. 7B, the air gaps are not formed. The air gap may or may not be formed due to the difference in the method of manufacturing the vacuum heat insulating material 41.

  The core material 41a may be a material used for the core material of a conventionally known vacuum heat insulating material, and for example, powder such as silica, foam such as urethane polymer, fiber such as glass wool, etc. The porous body of may be used.

  The exterior material 41b is a member that covers the outer periphery of the core material 41a, and a flexible sheet may be used in which the heat welding layer and the gas barrier layer are sequentially laminated from the core material. The gas barrier layer may be a metal foil, a vapor deposition sheet having a vapor deposition layer formed on one side of a resin sheet, or the like. The metal foil can use, for example, aluminum. The vapor deposition layer can use aluminum, an aluminum oxide, and a silicon oxide, for example.

(Disassembly and assembly of the transport truck)
Next, the operation in disassembling and assembling the transport truck 10 will be described.

(Decomposition of transport cart)
FIGS. 8 to 15 are diagrams for explaining the respective steps in the case where the transport carriage 10 is disassembled in order. In addition, FIG. 8A, FIG. 9A, FIG. 10A to FIG. 10C, FIG. 11A, FIG. 12A, FIG. 13A, FIG. (A)-(c) is a top view of the transport truck 10, respectively, and the display of the top panel 11 is omitted. Moreover, FIG.8 (b), FIG.9 (b), FIG.11 (b), FIG.12 (b), FIG.13 (b), FIG.14 (b) is a front view which shows the trolley | bogie 10 for conveyance.

  First, as shown to FIG. 8 (a) (b), the case where the six panels 11-16 of the trolley | bogie 10 for conveyance are expand | deployed and assembled in a box shape and it will be in the unfolded state is assumed. At this time, a substantially rectangular parallelepiped housing space 20 is formed between the panels 11 to 16. Although not shown, a load such as food may be stored in the storage space 20.

  Next, as shown in FIGS. 9A and 9B, the front panel 12 is shifted from the unfolded state to the folded state by folding the front panel 12.

  In the meantime, first, as shown in FIG. 10A, the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are folded in a folding screen. Specifically, the first front partial panel 12a rotates clockwise in plan view with respect to the first side panel 14 about the first front hinge member 22a. In addition, the second front partial panel 12b rotates counterclockwise in plan view with respect to the first front partial panel 12a about the second front hinge member 22b. Further, the third front partial panel 12c rotates clockwise in plan view with respect to the second front partial panel 12b about the third front hinge member 22c.

  Subsequently, as shown in FIG. 10B, the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c overlap each other, and in this state, the first front hinge member 22a is centered. And rotates clockwise with respect to the first side panel 14 in a plan view.

  Thereafter, as shown in FIG. 10C, the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c, which are overlapped with one another, move around the outside of the first side frame 51. As a result, as shown in FIGS. 11A and 11B, the front panel 12 is in a folded state, and the front side of the transport carriage 10 is completely opened in the horizontal direction (X direction). When the load is stored in the storage space 20, the load may be taken out from the front side in this state.

  Next, as shown in FIGS. 12A and 12B, the bottom panel 16 is folded from the unfolded state to the folded state by folding the bottom panel 16. During this time, the bottom panel 16 rotates counterclockwise in a front view with respect to the first side frame 51 about the bottom hinge member 26a. Thus, the bottom panel 16 is folded so as to overlap the inner side (plus side in the X direction) of the first side frame 51, and is positioned around the inner side of the first side frame 51. That is, the bottom panel 16 is disposed perpendicularly (parallel to the YZ plane) to the horizontal plane (XY plane). In this case, the bottom panel 16 is attached to the first side frame 51 via the surface fastener (removable member) 26b.

  Next, as shown in FIGS. 13 (a) and 13 (b), the bottom plate 58 is folded from the unfolded state to the folded state by folding the bottom plate 58. During this time, the bottom plate 58 is rotated clockwise with respect to the second side frame 52 in a front view, and is folded so as to overlap the inner side (the negative side in the X direction) of the second side frame 52. Located at the inner periphery. That is, the bottom plate 58 is disposed perpendicularly (parallel to the YZ plane) to the horizontal plane (XY plane). In this case, the bottom plate 58 is attached to the second side frame 52 by fixing means (not shown).

  Subsequently, as shown in FIGS. 14A and 14B, the top panel 11 is folded from the unfolded state by being folded. During this time, the second top surface partial panel 11b is separated from the first top surface partial panel 11a by removing the surface fastener 21b, and the front surface with respect to the third top surface partial panel 11c centering on the top surface hinge member 21a. Rotates counterclockwise in sight. Thus, the second top partial panel 11b is folded downward, and is arranged to hang down from the third top partial panel 11c. At this time, the second top panel 11b is disposed around the inner side of the second side frame 52 and on the inner side (the negative side in the X direction) with respect to the bottom plate 58.

  Next, as shown in FIGS. 15A to 15C, the back panel 13 is folded from the unfolded state to the folded state by folding the back panel 13.

  During this time, first, as shown in FIGS. 15A and 15B, the first back surface partial panel 13a rotates counterclockwise in plan view with respect to the first side surface panel 14 about the second back surface hinge member 23b. . Further, the second back partial panel 13b rotates clockwise in plan view with respect to the first back partial panel 13a about the first back hinge member 23a. As a result, the second back partial panel 13b is folded so as to overlap the first back partial panel 13a, and is disposed inside (the Y direction minus side) of the first back partial panel 13a. Furthermore, as shown in FIG. 15 (c), the first back surface partial panel 13a rotates clockwise in plan view with respect to the first side surface panel 14 about the second back surface hinge member 23b, whereby The 1 back partial panel 13a is returned to the same position as the unfolded state (FIG. 15 (a)).

  Thus, the back panel 13 is opened by a predetermined width W1 by removing the second back partial panel 13 b. On the other hand, the overlapping portion of the first back partial panel 13a and the second back partial panel 13b is covered without being opened.

  Thus, the six panels 11 to 16 of the transport carriage 10 are all in the folded state. At this time, a first panel group G1 and a second panel group G2 are formed around the first side frame 51 and the second side frame 52, respectively.

  As described above, when the transportation carriage 10 is not used, the panels 11 to 16 can be folded, and the entire volume can be reduced as much as possible for storage and transportation.

(Assembly of transport carriage)
The assembling method of the transport carriage 10 can be performed by performing the above-described disassembly method in the reverse order. That is, first, starting from the reverse operation of FIGS. 15 (a), (b) and (c), the back panel 13 is changed from the folded state to the expanded state. Next, the top panel 11 is changed from the folded state to the unfolded state as a reverse operation of FIGS. 14 (a) and 14 (b), and then the bottom plate 58 is unfolded from the folded state as a reverse operation of FIGS. 13 (a) and 13 (b). It will be in the state. Subsequently, the bottom panel 16 is changed from the folded state to the unfolded state as a reverse operation of FIGS. 12A and 12B, and finally, as the reverse operation of FIGS. As a result, the assembly operation is completed.

(Nesting of transport carts)
Next, the operation at the time of nesting the transport carriages 10 will be described. 16 (a) to 16 (c) are plan views for explaining the operation in the case of nesting the transport carriages 10. FIG. In addition, in FIG. 16 (a)-(c), the display of the 1st top panel partial panel 11a and the 3rd top panel partial panel 11c is abbreviate | omitted.

  First, as shown in FIG. 16A, the transport carriage 10 (first transport carriage 10) in which all the six panels 11 to 16 are in the folded state is prepared.

  Next, as shown in FIG. 16 (b), another transport carriage 10A (second transport carriage 10A) in the folded state is prepared. The second transport carriage 10A has the same configuration as the first transport carriage 10. Next, the second transport carriage 10A is made to approach the first transport carriage 10 from the front side (the negative side in the Y direction) of the first transport carriage 10, and is superimposed on the first transport carriage 10. At this time, the first panel group G1 of the second transport carriage 10A is made as close as possible to the first panel group G1 of the first transport carriage 10. In this case, since the back panel 13 of the second transport carriage 10A is opened by the predetermined width W1, the second panel group G2 of the first transport carriage 10 is the back panel of the second transport carriage 10A. There is no interference with 13.

  Next, as shown in FIG. 16C, yet another transport carriage 10B (third transport carriage 10B) in a folded state is prepared. The third transport carriage 10B has the same configuration as the first transport carriage 10 and the second transport carriage 10A. Subsequently, the third transport carriage 10B is made to approach the second transport carriage 10A from the front side (the negative side in the Y direction) of the second transport carriage 10A, and the first transport carriage 10 and the second transport carriage 10A are moved. The transport truck 10A of At this time, the first panel group G1 of the third transport carriage 10B is made as close as possible to the first panel group G1 of the second transport carriage 10A. In this case, since the back panel 13 of the third transport carriage 10B is opened by the predetermined width W1, the second panel group G2 of the first transport carriage 10 and the second of the second transport carriage 10A The panel group G2 does not interfere with the back panel 13 of the third transport carriage 10B.

  By the way, as described above, each rear panel 13 of these transport carriages 10, 10A, 10B is opened by a width W1, and this width W1 is (n-1) in the horizontal direction (X direction) It has a length of × T or more. Here, as described above, T is the thicker of the total thickness T1 of the first panel group G1 of the transport carriages 10, 10A and 10B and the total thickness T2 of the second panel group G2, n is the maximum number of nestable transport carriages 10 (3 in this case). Thus, by setting the width W1 of the open portion of the back panel 13 of the transport carriages 10, 10A, 10B to (n-1) × T or more, n transport carriages 10, 10A, 10B can be obtained. It becomes possible to nest reliably and store these transport carriages 10, 10A, 10B in a compact manner. Hereinafter, the reason why such a relationship is established will be described.

  17 (a) and 17 (b) are plan views schematically showing the nested carriages 10, 10A, 10B, and for convenience, the back panel 13 of the respective carriages 10, 10A, 10B, the first panel Only the group G1 and the second panel group G2 are illustrated. In addition, it is assumed that the transport carriages 10, 10A, and 10B are closely contacted and nested without gaps along the X direction. 17 (a) and 17 (b), the first transport carriage 10 is shown by a solid line, the second transport carriage 10A is shown by a dashed line, and the third transport carriage 10B is shown by a two-dot chain line. There is.

  FIG. 17A shows a case where the total thickness T1 of the first panel group G1 of each of the transport carriages 10, 10A, 10B is larger than the total thickness T2 of the second panel group G2. That is, T1 = T. Further, the total length (length in the X direction) of each of the transport carriages 10, 10A and 10B is La, and the width (length in the X direction) of the back panel 13 is W2. At this time, focusing on the first transport carriage 10 of FIG. 17A, the relationship of La = T + W2 + W1 + T2 (Expression 1) is established (see the upper side of FIG. 17A). On the other hand, focusing on the nested n (three) transport carriages 10, 10A and 10B, the relationship La = n × T + W2 + T2 (Expression 2) holds (see the lower side of FIG. 17A). The relationship of W1 = (n−1) × T is obtained from the above Equation 1 and Equation 2. Therefore, when W1 is (n-1) × T or more, it is possible to nest n transport carriages 10, 10A, and 10B.

  FIG. 17B shows the case where the total thickness T2 of the second panel group G2 of the transport carriages 10, 10A, 10B is larger than the total thickness T1 of the first panel group G1. That is, T2 = T. In this case, focusing on the third transport carriage 10B in FIG. 17B, the relationship La = T1 + W2 + W1 + T (Equation 3) holds (see the upper side in FIG. 17B). On the other hand, focusing on the nested n (three) transport carriages 10, 10A and 10B, the relationship La = T1 + W2 + n × T (Equation 4) holds (see the lower side of FIG. 17B). The relationship of W1 = (n−1) × T is obtained from the above Equation 3 and Equation 4. Therefore, when W1 is (n-1) × T or more, it is possible to nest n transport carriages 10, 10A, and 10B.

  As described above, according to the present embodiment, the thicker one of the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 is T, and the number of the transport carriages 10 that can be nested When n is n, the back panel 13 is opened horizontally by a width of (n-1) × T or more. As a result, the other transport carriages 10 do not interfere with the back panel 13, and the n transport carriages 10 can be reliably nested. As a result, when not in use, the plurality of transport carriages 10 can be stored compactly.

  Further, according to the present embodiment, the plurality of panels 11 to 16 can be in the unfolded state assembled in the form of a box and in the folded state in which nesting with the other carriages 10 is possible. As a result, by placing the panels 11 to 16 in the expanded state, it is possible to form a highly airtight storage space 20 capable of storing the load in the panels 11 to 16. On the other hand, when the transport carriages 10 are not used, the panels 11 to 16 are folded to nest them with the other identical transport carriages 10 and store these transport carriages 10 in a compact form. be able to.

  Further, according to the present embodiment, the first panel group including the first side frame 51 by folding at least a part of each of the panels 11 to 16 around the first side frame 51 or the second side frame 52, respectively. G1 and a second panel group G2 including the second side frame 52 are formed. Thus, the panels 11 to 16 can be easily folded, and the plurality of panels 11 to 16 can be compactly arranged around the first side frame 51 and the second side frame 52.

  Further, according to the present embodiment, in the folded state, the first back partial panel 13a which is a part of the back panel 13 remains on the back side without being folded. Thereby, the operation of folding the back panel 13 is simplified. Further, since the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 can be suppressed from being unnecessarily increased by the amount of the back partial panel 13a, depending on the degree of the suppressed thickness The number of nestable transport carriages 10 can be increased.

  Further, according to the present embodiment, since the bogie main body 50 includes the six wheels 61 to 66, it is possible to mount a heavy load or a large-volume load on the transport bogie 10. Further, in such a six-wheeled elongated carriage 10, the panels 11 to 16 can be selectively put in the unfolded state or in the folded state.

  Further, according to the present embodiment, each of the panels 11 to 16 includes the heat insulating panel, and the heat insulating panel includes the vacuum heat insulating material 41 or the foam heat insulating material. Even if the thickness of the vacuum heat insulating material 41 or the foamed heat insulating material is thin, the heat insulating performance is good, so the heat insulating property of the accommodation space 20 in the panels 11 to 16 can be enhanced and the load can be stored in a cold or warm state. . Further, by using the vacuum heat insulating material 41 or the foam heat insulating material, the panels 11 to 16 can be reduced in weight, and the storage volume of the transport carriage 10 in the unfolded state can be increased. 10 can be made compact. Furthermore, since the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 can be reduced, the number of nestable transport carriages 10 can be increased depending on the degree of the thinness. it can.

  Further, according to the present embodiment, the plurality of panels 11 to 16 includes the top panel 11, the front panel 12, the back panel 13, the first side panel 14, the second side panel 15, and the bottom panel 16. And. Thereby, since the storage space 20 is covered from all directions by the panels 11-16, the load in the storage space 20 can be protected from all directions.

  Further, according to the present embodiment, the front panel 12 includes a plurality of foldable front partial panels 12a, 12b, 12c. Thereby, by folding the front partial panels 12a, 12b, 12c, the front side of the transport carriage 10 is opened, and it becomes easy to take out the load from the storage space 20 or to store the load in the storage space 20. Further, the front partial panels 12 a, 12 b, 12 c can be compactly arranged and arranged around the outer side of the first side frame 51. In this case, the length in the width direction (Y direction in the folded state) of the front partial panels 12a, 12b, 12c is suppressed, and the front partial panels 12a, 12b, 12c Interference with surrounding objects is prevented.

  Further, according to the present embodiment, the bogie main body 50 further includes the foldable bottom plate 58, and the bottom plate 58 is folded around the second side frame 52 to configure the second panel group G2. Thereby, in the unfolded state, the load of the load can be supported by the bottom plate 58, and in the unfolded state, the transport carriage 10 can be nested by lifting the bottom plate 58 and arranging it around the second side frame 52. It is possible to

(Modification)
Next, various modifications of the transport carriage will be described.

  In the above embodiment, the top panel 11 is composed of three top partial panels 11a, 11b and 11c, the front panel 12 is composed of three front partial panels 12a, 12b and 12c, and the back panel 13 is 2 The case where it is comprised from two back partial panels 13a and 13b was demonstrated to the example. However, the present invention is not limited to this. For example, when each of the panels 11 to 13 is removable, the top panel 11, the front panel 12, and the back panel 13 may be formed of one panel. Alternatively, each of the panels 11 to 13 may be configured of a plurality of partial panels different from the above. In the above embodiment, although the case where the first side panel 14, the second side panel 15, and the bottom panel 16 are respectively configured by one panel is described as an example, the first side panel 14 and the second side panel are described. The panel 15 and the bottom panel 16 may be composed of a plurality of partial panels.

  In the above embodiment, the first panel group G1 includes the third front partial panel 12c, the second front partial panel 12b, the first front partial panel 12a, the first side panel 14, and the first side. The second panel group G2 includes the frame 51 and the bottom panel 16, and the second panel group G2 includes the second side frame 52, the second side frame 52, the bottom plate 58, and the second top partial panel 11b. Described for the example. However, each panel or partial panel may belong to any of the first panel group G1 and the second panel group G2. Although the case where the bottom plate 58 is folded around the second side frame 52 to constitute the second panel group G2 has been described as an example, the present invention is not limited thereto. The bottom plate 58 is folded around the first side frame 51 And the first panel group G1 may be configured.

  Moreover, in the said embodiment, the case where all the panels 11-16 did not separate from the trolley | bogie main body 50 in the folded state was demonstrated as an example. However, the present invention is not limited to this, and in the folded state, some of the panels 11 to 16 may be detached from the dolly main body 50 and separated. For example, in the folded state, all or part of the top panel 11 may be removed and stored at a location different from the transport carriage 10. In this case, the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 can be reduced.

  Moreover, in the said embodiment, although the case where six panels 11-16 included a heat insulation panel was demonstrated to the example, it not only this but the panels 11-16 need not necessarily have heat insulation. For example, the fall of the load accommodated in the accommodation space 20 can be prevented by comprising each panel 11-16 from a transparent or opaque thin plate. Moreover, by making each panel 11-16 into an opaque thin plate, it can be blinded so that the load accommodated in the accommodation space 20 can not be visually recognized from the outside.

  Moreover, in the said embodiment, the case where the front panel 12 was completely open | released in the horizontal direction (X direction) in the folded state was demonstrated to the example. However, the present invention is not limited to this, and a part of the front panel 12 may be left on the front side (the negative side in the Y direction) without being folded, in a range that does not hinder the nesting of the transport carriages 10. In this case, the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 can be reduced.

  Moreover, in the said embodiment, although the case where the bottom face panel 16 was provided was demonstrated to the example, it does not need to provide the bottom face panel 16 not only this. In this case, the housing space 20 may be formed by the top panel 11, the front panel 12, the back panel 13, the first side panel 14, the second side panel 15, and the bottom plate 58. Further, the bottom plate 58 may be made to have a heat insulating property, for example, by spraying a heat insulating material on the bottom plate 58 without providing the bottom panel 16. In this case, since the operation of moving the bottom panel 16 is not necessary, the workability of the operation of folding the panels 11 to 15 and the expanded state is improved. Further, the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 can be reduced.

  In the above embodiment, the first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c of the front panel 12 are disposed outside the first side frame 51 as an example. explained. However, the present invention is not limited to this, and as shown in FIG. 18, the first front partial panel 12 a, the second front partial panel 12 b and the third front partial panel 12 c of the front panel 12 are disposed inside the first side frame 51. It is good. In this case, the front panel 12 further includes a fourth front partial panel 12 d fixed to the first side panel 14 or the first side frame 51. The first front partial panel 12a is foldably attached to the fourth front partial panel 12d. In FIG. 18, the display of the first top partial panel 11a and the third top partial panel 11c is omitted.

  Further, as shown in FIG. 19, a removable intermediate shelf 59 may be provided on the first side frame 51 and the second side frame 52 of the carriage main body 50. The intermediate shelf 59 is rectangular in a plan view, and extends along the longitudinal direction (X direction) of the connecting member 53. By providing such an intermediate shelf 59, the load can be arranged and arranged inside the accommodation space 20. The intermediate shelf 59 is detachably attached to the cross bar 56 of the first side frame 51 and the cross bar 56 of the second side frame 52. That is, in the unfolded state, the intermediate shelf 59 is disposed between the first side frame 51 and the second side frame 52. On the other hand, in the folded state, the intermediate shelf 59 is removed from the first side frame 51 and the second side frame 52 and stored separately from the carriage main body 50. In this case, the middle shelf 59 can be attached to any of the plurality of cross bars 56 provided in the height direction (Z direction). The intermediate shelf 59 is not limited to this, and may be separable, for example, in part of the longitudinal direction (X direction). In this case, in the folded state, portions of the pair of intermediate shelves 59 separated from each other may be folded around the inner side of the first side frame 51 and the second side frame 52, respectively. The number of intermediate shelves 59 is not limited to one, and a plurality of intermediate shelves may be provided.

Second Embodiment
Next, a second embodiment will be described with reference to FIGS. FIG. 20 to FIG. 35 show the second embodiment. The second embodiment shown in FIGS. 20 to 35 mainly differs in the configuration of each panel 11 to 16, and the other configuration is substantially the same as that of the above-described first embodiment. In FIG. 20 to FIG. 35, the same parts as those in the embodiment shown in FIG. 1 to FIG. In the following, differences from the first embodiment will be mainly described.

  As shown in FIGS. 20 to 22, the transport carriage 10 according to the present embodiment includes a carriage main body 50 and a plurality of panels 11 to 16 (six And panels 11 to 16). Among them, the configuration of the bogie main body 50 is substantially the same as that of the first embodiment.

(Configuration of panel)
Next, the configuration of panels 11 to 16 will be described. The panels 11 to 16 are provided so as to be deployable and foldable with respect to the bogie main body 50 as a whole, and in an unfolded state assembled in a box shape (FIG. 20) and a folded state where nesting is possible (FIG. 22) You can take Moreover, FIG. 21 has shown the case where only the front panel 12 is in a folding state among the panels 11-16.

  As shown in FIG. 20, panels 11 to 16 include top panel 11, front panel 12, back panel 13, first side panel 14, second side panel 15, and bottom panel 16. There is. It is possible to form the accommodation space 20 which accommodates a load by being surrounded by six panels 11-16 in the unfolded state.

  Next, the configuration of each of the panels 11 to 16 will be further described.

(Top panel)
The top panel 11 is disposed above the first side frame 51, the second side frame 52, the first side panel 14, and the front panel 12 in the unfolded state (FIG. 20). The top panel 11 is disposed on the front side (the negative side in the Y direction) of the rear panel 13 and is disposed on the first side (the negative side in the X direction) of the second side panel 15.

  The top panel 11 has a structure that can be partially opened and closed. The first top panel 11a is located on the side of the first side frame 51, and the top panel 11 is located on the side of the second side frame 52. And a second top surface partial panel 11b that is larger than the partial panel 11a. Among them, the first top partial panel 11a is foldably attached to the first side panel 14 via the first top hinge member 21c (see FIGS. 24 (a) to (c)). Further, the second top partial panel 11b is foldably attached to the first top partial panel 11a via the second top hinge member 21d (see FIGS. 24 (a) to (c)). . Furthermore, the second top panel 11b is detachably attached to the second side panel 15 via a non-illustrated surface fastener (detachable member).

  The first top partial panel 11a and the second top partial panel 11b are both arranged horizontally (parallel to the XY plane) in the unfolded state (FIG. 20). Further, in the folded state (FIG. 22), the first top partial panel 11a is disposed horizontally, while the second top partial panel 11b is folded downward, from the first top partial panel 11a. It is arranged to hang down. At this time, the second top panel 11b is disposed around the inner side of the first side frame 51 and is parallel to the YZ plane.

(Front panel)
The front panel 12 is a panel located below the top panel 11 and above the bottom panel 16 in the unfolded state (FIG. 20) and on the front side (the negative side in the Y direction) with respect to the back panel 13 , Perpendicular to the horizontal plane (XY plane) (parallel to the ZX plane).

  The front panel 12 is a foldable structure, and is located on the first side partial panel 12 a located on the side of the first side frame 51, the second front partial panel 12 b located on the middle side, and the side of the second side frame 52. And a third front partial panel 12c. Among them, the first front partial panel 12a is foldably attached to the first side panel 14 via a first front hinge member 22a (see FIGS. 23 (a) to 23 (c)). The second front partial panel 12b is foldably attached to the first front partial panel 12a via a second front hinge member 22b (see FIGS. 23A to 23C). Furthermore, the third front partial panel 12c is foldably attached to the second front partial panel 12b via the third front hinge member 22c (see FIGS. 23 (a) to 23 (c)). The third front partial panel 12c is detachably attached to the second side panel 15 via, for example, a surface fastener (detachable member) not shown.

  The first front partial panel 12a, the second front partial panel 12b, and the third front partial panel 12c are disposed perpendicular (parallel to the ZX plane) to the horizontal plane (XY plane) in the unfolded state (FIG. 20). Ru. In addition, the width (length in the X direction) of the first front partial panel 12a is shorter than the width (length in the X direction) of the second front partial panel 12b and the third front partial panel 12c. The width 12b (length in the X direction) is substantially the same as the width (length in the X direction) of the third front partial panel 12c. On the other hand, in the folded state (FIG. 22), the first front partial panel 12 a is located on the front side (the negative side in the Y direction) of the first side panel 14. Further, the second front partial panel 12b and the third front partial panel 12c are folded so as to overlap each other, and are further rotated about the vertical axis (Z-direction axis), and the outer side (X-direction minus) of the first side panel 14 is obtained. Side). At this time, the second front partial panel 12 b and the third front partial panel 12 c are folded and disposed around the outer side of the first side frame 51 and parallel to the YZ plane.

(Rear panel)
The back panel 13 is positioned more on the back side (plus side in the Y direction) than the top panel 11, the front panel 12, the first side panel 14, the second side panel 15, and the bottom panel 16 in the unfolded state (FIG. 20). It is a panel, and is disposed perpendicular (parallel to the ZX plane) to a horizontal plane (XY plane).

  The rear panel 13 has a foldable structure, and includes a first rear partial panel 13a located on the first side frame 51 side and a second rear partial panel 13b located on the second side frame 52 side. There is. Among them, the second rear partial panel 13b is foldably attached to the first rear partial panel 13a via the first rear hinge member 23a (see FIGS. 25A to 25C). The second back surface partial panel 13 b is detachably attached to the second side surface panel 15 via, for example, a surface fastener (detachable member) not shown. Furthermore, the first back partial panel 13 a is fixed to the first side panel 14.

  Both the first back surface partial panel 13a and the second back surface partial panel 13b are arranged perpendicularly (parallel to the ZX plane) to the horizontal plane (XY plane) in the unfolded state (FIG. 20). On the other hand, in the folded state (FIG. 22), the second back partial panel 13b is folded so as to overlap the first back partial panel 13a, and is disposed outside (the Y direction plus side) the first back partial panel 13a. Ru. At this time, the first back partial panel 13a remains on the back side without being folded. That is, even in the folded state, the first back partial panel 13a is at the same position as in the unfolded state, and is disposed perpendicular (parallel to the ZX plane) to the horizontal plane (XY plane). In addition, the first back surface partial panel 13a and the second back surface partial panel 13b are folded and disposed perpendicularly to the first side frame 51, and are parallel to the ZX plane. Thus, in the folded state, the back panel 13 is opened by removing the second back partial panel 13 b. The portion where the back panel 13 is opened has a predetermined width W1 in the horizontal direction (X direction) (FIG. 22).

(First side panel)
The first side panel 14 is a panel positioned on the first side frame 51 side (X direction minus side) in both the unfolded state (FIG. 20) and the folded state (FIG. 22), relative to the horizontal plane (XY plane) It is arranged vertically (parallel to the YZ plane). The configuration of the first side panel 14 is substantially the same as that of the first embodiment.

(2nd side panel)
The second side panel 15 is a panel positioned on the second side frame 52 side (plus side in the X direction) in both the unfolded state (FIG. 20) and the folded state (FIG. 22), relative to the horizontal plane (XY plane) It is arranged vertically (parallel to the YZ plane). The configuration of the second side panel 15 is substantially the same as that of the first embodiment.

(Bottom panel)
The bottom panel 16 is a panel positioned on the bottom side (the negative side in the Z direction) in the unfolded state (FIG. 20), and is disposed parallel to the horizontal plane (XY plane). Further, in the unfolded state, the bottom panel 16 is disposed on the bottom plate 58 of the bogie main body 50 and between the first side frame 51 and the second side frame 52. The configuration of the bottom panel 16 is substantially the same as that of the first embodiment.

  As shown in FIG. 21, rectangular gap panels 17 are provided around the bottoms (minus sides in the Z direction) of the first side frame 51 and the second side frame 52. The gap panel 17 closes the gap between the bottom panel 16 and the first side panel 14 or the second side panel 15. This can further enhance the heat insulation of the housing space 20.

  FIG. 22 shows the case where the panels 11 to 16 are in the folded state. As shown in FIG. 22, in the folded state, at least a part of each of the panels 11 to 16 is folded around the first side frame 51 or the second side frame 52, respectively.

  That is, around the first side frame 51, the second front partial panel 12b, the third front partial panel 12c, the first side panel 14, the bottom surface panel 16, and the second front partial panel 12b are sequentially arranged from the outer side (the negative side in the X direction). The two top surface partial panels 11 b overlap. The first side frame 51 is located between the first side panel 14 and the bottom panel 16. In addition, the second side panel 15 and the bottom plate 58 overlap the periphery of the second side frame 52 in order from the outer side (plus side in the X direction). The second side frame 52 is positioned between the second side panel 15 and the bottom plate 58.

  In this case, a first panel group G1 and a second panel group G2 are formed around the first side frame 51 and the second side frame 52, respectively. Among them, the first panel group G1 includes the second front partial panel 12b, the third front partial panel 12c, the first side panel 14, the first side frame 51, the bottom panel 16, and the second top partial panel And 11b. The second panel group G2 is configured of the second side panel 15, the second side frame 52, and the bottom plate 58.

  As in the case of the first embodiment, the thicker one of the total thickness T1 of the first panel group G1 and the total thickness T2 of the second panel group G2 is T, and the nesting of the transport carriage 10 is possible. Let the number be n. In this case, the open width W1 of the back panel 13 described above has a length of (n-1) × T or more in the horizontal direction (X direction).

(Decomposition of transport cart)
Next, the operation of disassembling the transport truck 10 will be described. FIGS. 23 to 25 are views for explaining a part of the process of disassembling the transport carriage 10 in order.

  First, as shown in FIG. 20, it is assumed that the six panels 11 to 16 of the transport carriage 10 are deployed and assembled in a box shape (deployed state). At this time, a substantially rectangular parallelepiped housing space 20 is formed between the panels 11 to 16.

  Next, as shown in FIG. 21, the front panel 12 is shifted from the unfolded state to the folded state by folding the front panel 12.

  In the meantime, first, as shown in FIG. 23A, the third front partial panel 12c is folded so as to overlap the second front partial panel 12b. Specifically, the third front partial panel 12c rotates clockwise in plan view with respect to the second front partial panel 12b about the third front hinge member 22c.

  Subsequently, as shown in FIG. 23B, the second front partial panel 12b and the third front partial panel 12c overlap each other, and in this state, the first front partial panel 12a is centered on the second front hinge member 22b. Rotate clockwise in plan view.

  Thereafter, as shown in FIG. 23C, the second front partial panel 12 b and the third front partial panel 12 c move around the outside of the first side frame 51. Specifically, the first front partial panel 12a rotates clockwise in plan view with respect to the first side panel 14 about the first front hinge member 22a. At this time, the first front partial panel 12a is located on the front side (the negative side in the Y direction) with respect to the first side panel 14, and the second front partial panel 12b and the third front partial panel 12c are on the first side. It is located outside (the X direction minus side) to frame 51. Thus, as shown in FIG. 21, the front panel 12 is in a folded state, and the front side of the transport carriage 10 is completely opened in the horizontal direction (X direction).

  Next, in the same manner as in the first embodiment, the bottom panel 16 is folded from the unfolded state to the folded state by folding the bottom panel 16. During this time, the bottom panel 16 rotates counterclockwise with respect to the first side frame 51 in a front view. Thus, the bottom panel 16 is positioned around the inside of the first side frame 51.

  Next, the bottom plate 58 is folded from the unfolded state to the folded state by folding the bottom plate 58 in the same manner as in the first embodiment. During this time, the bottom plate 58 is rotated clockwise with respect to the second side frame 52 in a front view, and is folded so as to overlap the inner side (the negative side in the X direction) of the second side frame 52. Located at the inner periphery.

  Subsequently, as shown in FIGS. 24 (a) to (c), the top panel 11 is folded from the unfolded state by folding the top panel 11.

  During this time, first, as shown in FIGS. 24 (a) and 24 (b), the first top panel 11a is counterclockwise in a front view with respect to the first side panel 14 with the first top hinge member 21c at the center. As it rotates, the second top partial panel 11b rotates clockwise in a front view with respect to the first top partial panel 11a about the second top hinge member 21d.

  Subsequently, as shown in FIG. 24C, the second top panel partial panel 11 b moves around the inside of the first side frame 51. Specifically, the first top partial panel 11a rotates clockwise in a front view with respect to the first side panel 14 about the first top hinge member 21c, and the second top partial panel 11b The first top partial panel 11a is rotated clockwise in a front view with respect to the second top top hinge member 21d. As a result, the second top partial panel 11b is folded downward, and is arranged to hang down from the first top partial panel 11a. At this time, the second top panel partial panel 11 b is disposed around the inner side of the first side frame 51 and on the inner side (plus side in the X direction) with respect to the bottom panel 16.

  Next, as shown in FIGS. 25A and 25B, the back panel 13 is folded from the unfolded state to the folded state by folding the back panel 13.

  During this time, first, as shown in FIGS. 25 (a) and 25 (b), the second rear partial panel 13b rotates counterclockwise in plan view with respect to the first rear partial panel 13a about the first rear hinge member 23a. Do. Thereby, the 2nd back partial panel 13b is folded so that it may overlap with the 1st back partial panel 13a, and is arrange | positioned on the outer side (Y direction plus side) of the 1st back partial panel 13a. On the other hand, the first back partial panel 13a maintains the same position as in the unfolded state even in the folded state.

  In this manner, all the six panels 11 to 16 of the transport carriage 10 are in the folded state, and the first panel group G1 and the second panel group are arranged around the first side frame 51 and the second side frame 52, respectively. G2 is formed.

(Assembly of transport carriage)
The assembling method of the transport carriage 10 can be performed by performing the above-described disassembly method in the reverse order. That is, first, starting from the reverse operation of FIGS. 25 (a) and 25 (b), the back panel 13 is changed from the folded state to the unfolded state. Next, the top panel 11 is changed from the folded state to the unfolded state as a reverse operation of FIGS. Next, the bottom plate 58 and the bottom panel 16 are changed from the folded state to the unfolded state, and finally, the assembly operation is performed by changing the front panel 12 from the unfolded state to the unfolded state as a reverse operation of FIGS. Is complete.

  By the way, in this embodiment, although the case where bottom panel 16 consists of one tabular member was explained to an example, it does not restrict to this, but bottom panel 16 is constituted from partial (two) partial bottom panels. May be

  For example, as shown in FIGS. 26 (a)-(c), the bottom panel 16 includes a first bottom partial panel 16a positioned on the first side frame 51 side and a second bottom portion positioned on the second side frame 52 side. And a panel 16b. Among these, the first bottom surface partial panel 16a is foldably attached to the first side surface panel 14 via a first bottom surface hinge member 26c made of, for example, an idle cloth. The second bottom partial panel 16b is foldably attached to the first bottom partial panel 16a via a second bottom hinge member 26d. In addition, the second bottom surface partial panel 16b is detachably attached to the second side surface panel 15 via a non-illustrated surface fastener (detachable member).

  The first bottom partial panel 16a and the second bottom partial panel 16b are both arranged horizontally (parallel to the XY plane) in the unfolded state. On the other hand, in the folded state, the second bottom partial panel 16b is folded so as to overlap the first bottom partial panel 16a. At this time, the first bottom partial panel 16 a and the second bottom partial panel 16 b are disposed around the inner side of the first side frame 51 and are parallel to the YZ plane.

  When the bottom panel 16 is folded, first, as shown in FIGS. 26 (a) and 26 (b), the first bottom panel 16a is opposite to the first side panel 14 with respect to the first side panel 14 in a front view. Rotate clockwise. In addition, the second bottom surface partial panel 16b rotates clockwise in a front view with respect to the first bottom surface partial panel 16a about the second bottom surface hinge member 26d. Thereafter, as shown in FIG. 26C, the first bottom partial panel 16a and the second bottom partial panel 16b are disposed around the inner side of the first side frame 51 in an overlapping state.

  In the present embodiment, the panels 11 to 14, 16 and 17 are detachably attached to other panels. Specifically, the front panel 12 and the first side panel 14 are detachably attached to each other, and the back panel 13 and the first side panel 14 are detachably attached to each other. The top panel 11 and the first side panel 14 are detachably attached to each other. Furthermore, the bottom panel 16 and the gap panel 17 are detachably attached to each other.

  Hereinafter, with reference to FIGS. 27 to 33, a configuration for detachably attaching each of the panels 11 to 14, 16 and 17 will be described.

  As shown in FIG. 27 (a), the first front partial panel 12a of the front panel 12 is provided with a convex entrapped portion 28a projecting to the first side panel 14 side. Further, the first side panel 14 is provided with a concave sandwiching portion 29a which sandwiches the sandwiching portion 28a. The front panel 12 is attached to the first side panel 14 by the pinched portion 28 a being pinched by the pinched portion 29 a. On the other hand, the front panel 12 is removed from the first side panel 14 by pulling the pinched portion 28a away from the pinched portion 29a. Thus, the front panel 12 and the first side panel 14 are detachably attached to each other.

  As shown in FIG. 27B, when the front panel 12 is shifted from the unfolded state to the folded state, the first front partial panel 12a rotates clockwise with respect to the first side panel 14 in a plan view. Also in this case, since the pinched portion 28a provided on the first front partial panel 12a is firmly sandwiched by the pinched portion 29a provided on the first side panel 14, the first front partial panel 12a is It does not come off from the side panel 14.

  FIG. 28A is an enlarged view of a mounting portion between the first front partial panel 12 a and the first side panel 14. As shown in FIG. 28A, the pinched portion 28a provided on the first front partial panel 12a has a hook 31a of a surface fastener. Moreover, the pinching part 29a provided in the 1st side panel 14 has the loop part 31b of a surface fastener. The first front partial panel 12a and the first side panel 14 are detachably attached to each other by attaching and detaching the hook portion 31a of the pinched portion 28a and the loop portion 31b of the pinching portion 29a. In the first front partial panel 12a, a loop portion 31b of a surface fastener is provided in an area A1 on the side of the first side panel 14, and the pinched portion 28a is a first front partial panel 12a in this area A1. It is removably attached to the As a result, when the front panel 12 is shifted from the unfolded state to the folded state, the first front partial panel 12a can be smoothly rotationally moved to the front side (the negative side in the Y direction) than the first side panel 14 (see FIG. 27 (b)).

  As shown in FIG. 28 (b), the pinching portion 29a has a loop portion 31b of a surface fastener. Therefore, when the front panel 12 is removed, the loop portions 31b of the pinching portion 29a adhere to each other, and the pinching portion 29a is not blocked. However, the present invention is not limited to this, and the pinched portion 28a may have the loop portion 31b of the surface fastener.

  As shown in FIG. 29, the first side panel 14 may be provided with a pinched portion 28a, and the first front partial panel 12a may be provided with a pinching portion 29a which pinches the pinched portion 28a.

  As shown in FIG. 30, the first side panel 14 is provided with a convex entrapped portion 28 b that protrudes to the back panel 13 side. Further, the first back surface partial panel 13a of the back surface panel 13 is provided with a concave sandwiching portion 29b sandwiching the sandwiching portion 28b. The first side panel 14 is attached to the back panel 13 by being pinched by the pinched portion 28 b in the pinch portion 29 b. On the other hand, the first side panel 14 is removed from the back panel 13 by pulling the pinched portion 28 b away from the pinched portion 29 b. Thus, the back panel 1 and the first side panel 14 are detachably attached to each other.

  In this case, the pinching portion 29b has a loop portion of the surface fastener, and the pinched portion 28b has a hook portion of the surface fastener. However, the present invention is not limited to this. The pinching portion 29b may have a hook portion, and the pinched portion 28b may have a loop portion. In addition, the first side panel 14 may be provided with the pinching portion 29b, and the first back surface partial panel 13a may be provided with the pinched portion 28b.

  As shown in FIG. 31, the first side panel 14 is provided with a convex covered portion 28 c that protrudes toward the top panel 11. Further, the first top surface partial panel 11a of the top surface panel 11 is provided with a concave sandwiching portion 29c which sandwiches the sandwiching portion 28c. The first side panel 14 is attached to the top panel 11 by being pinched by the pinched portion 28 c in the pinch portion 29 c. On the other hand, the first side panel 14 is removed from the top panel 11 by pulling the pinched portion 28 c away from the pinched portion 29 c. Thus, the top panel 11 and the first side panel 14 are detachably attached to each other.

  In this case, the pinching portion 29c has a loop portion of the surface fastener, and the pinched portion 28c has a hook portion of the surface fastener. However, the present invention is not limited to this. The pinching portion 29c may have a hook portion, and the pinched portion 28c may have a loop portion. Further, the sandwiching portion 29c may be provided in the first side panel 14 and the sandwiching portion 28c may be provided in the first top surface partial panel 11a.

  As shown in FIG. 32, the bottom panel 16 is provided with a convex covered portion 28 d that protrudes toward the gap panel 17. Further, the gap panel 17 is provided with a concave sandwiching portion 29d which sandwiches the sandwiching portion 28d. The bottom panel 16 is attached to the gap panel 17 by being pinched by the pinched portion 28 d in the pinch portion 29 d. On the other hand, the bottom panel 16 is removed from the gap panel 17 by pulling the pinched portion 28d away from the pinched portion 29d.

  In this case, the pinching portion 29d has a loop portion of the surface fastener, and the pinched portion 28d has a hook portion of the surface fastener. However, the present invention is not limited to this. The pinching portion 29d may have a hook portion, and the pinched portion 28d may have a loop portion. In addition, the sandwiching portion 29 d may be provided in the bottom surface panel 16, and the sandwiching portion 28 d may be provided in the gap panel 17.

  FIGS. 33A and 33B show cross-sectional configurations of the panels 11 to 14, 16 and 17 shown in FIGS.

  As shown in FIGS. 33 (a) and (b), the panels 11 to 14, 16 and 17 have a panel center 46 and a heat shield sheet 45 that wraps the panel center 46. Among them, the panel central portion 46 includes the vacuum heat insulating material 41, the foam heat insulating material 42, the heat insulating envelope 43, and the heat insulating material protecting member 44 (see FIG. 6). As shown in FIG. 33 (a), the sandwiching portions 28a to 28d are formed in a convex shape by projecting a part of the heat shield sheet 45 protruding from the panel center portion 46. Further, as shown in FIG. 33 (b), the sandwiching portions 29 a to 29 d are formed in a concave shape by bending a part of the heat shield sheet 45 protruding from the panel central portion 46.

  Thus, the panels 11 to 14, 16 and 17 are detachably attached to each other to use not only as the transport carriage 10 including the panels 11 to 17 but also the carriage main body 50 from which the panels 11 to 17 are removed. Can also be used in Further, for example, when the carriage main body 50 and the panels 11 to 17 are manufactured in different places, the transport operation of the carriage main body 50 and the panels 11 to 17 and the assembly operation of the transportation carriage 10 can be efficiently performed. Furthermore, when storing for a long period of time without using the transport carriage 10, the panels 11 to 17 can be removed from the carriage main body 50.

  In the present embodiment, all of the panels 11 to 17 may not necessarily be detachably attached to the other panels 11 to 17 or the carriage main body 50, and some of the panels 11 to 17 may be other panels. 11 to 17 or the trolley main body 50 may be attached so as not to be detachable. Further, also in the first embodiment described above, all or a part of the plurality of panels 11 to 16 may be detachably attached to each other as in the embodiment shown in FIGS.

  Hereinafter, a modification of the present embodiment will be described with reference to FIGS. 34 and 35. 34 (a) shows the state before the panels 13 and 14 are attached to the first side frame 51, and FIG. 34 (b) shows the state after the panels 13 and 14 are attached to the first side frame 51. Is shown. FIG. 35 (a) shows a state before the panels 11 and 14 are attached to the first side frame 51, and FIG. 35 (b) shows a state after the panels 11 and 14 are attached to the first side frame 51. It shows the state.

  As shown in FIG. 34 (a), the first back surface partial panel 13a of the back surface panel 13 has a first swinging piece 71a and a second swinging piece 71b. Among them, the first swinging piece 71a extends from the X-direction negative side end of the first back surface partial panel 13a. The second swinging piece 71b is located on the negative side of the first back surface partial panel 13a in the Y direction, and extends from the positive side in the X direction with respect to the first swinging piece 71a. The surface fasteners 72a and 72b are attached to the first rocking piece 71a and the second rocking piece 71b, respectively. In addition, adhesive members 73a and 73b such as tapes are attached to the second rocking piece 71b and the first rear partial panel 13a, respectively. Furthermore, surface fasteners 72c and 72d are attached to the surface of the first side panel 14 on the positive side in the X direction and the surface on the negative side in the X direction, respectively.

  As shown in FIG. 34 (b), the adhesive members 73 a and 73 b of the back panel 13 are respectively adhered to the first side frame 51, whereby the back panel 13 is fixed to the first side frame 51. Also, the surface fasteners 72a of the first swinging piece 71a and the surface fasteners 72b of the second swinging piece 71b are attached to the surface fasteners 72d and 72c of the first side panel 14, respectively. Thus, the back panel 13 and the first side panel 14 are detachably attached.

  As shown in FIG. 35 (a), the third swinging piece 71c and the fourth swinging piece 71d are provided at the X direction minus side end portion of the first top surface partial panel 11a of the top panel 11 There is. The surface fasteners 72e and 72f are attached to the third rocking piece 71c and the fourth rocking piece 71d, respectively. The surface fasteners 72e and 72f are respectively provided on the surfaces facing each other of the third rocking piece 71c and the fourth rocking piece 71d. Further, a fifth rocking piece 71 e is provided at the Z-direction positive side end of the first side panel 14. Surface fasteners 72g and 72h are attached to both surfaces of the fifth rocking piece 71e.

  As shown in FIG. 35 (b), when viewed from the front, the third rocking piece 71 c and the fourth rocking piece 71 d of the top panel 11 sandwich the fifth rocking piece 71 e of the first side panel 14. To rotate. At this time, the surface fastener 72e of the third rocking piece 71c and the surface fastener 72g of the fifth rocking piece 71e are attached to each other, and the surface fastener 72f of the fourth rocking piece 71d and the surface of the fifth rocking piece 71e The fasteners 72h are attached to each other. Thus, the top panel 11 and the first side panel 14 are detachably attached.

  It is also possible to appropriately combine a plurality of components disclosed in the above-described embodiment and modifications as necessary. Alternatively, some components may be deleted from all the components shown in the above embodiment and modifications.

DESCRIPTION OF SYMBOLS 10 Transport truck 11 top panel 12 front panel 13 back panel 14 1st side panel 15 2nd side panel 16 bottom panel 20 accommodation space 40 heat insulation part 50 trolley | bogie main body 51 1st side frame 52 2nd side frame 53 connection member 58 Bottom plate 61 first wheel 62 second wheel 63 third wheel 64 fourth wheel 65 fifth wheel 66 sixth wheel

Claims (12)

A transport carriage that can be nested with another transport carriage,
A bogie main body having a first side frame, a second side frame, and a connecting member connecting the first side frame and the second side frame to each other;
A plurality of panels provided so as to be deployable and foldable with respect to the carriage body,
The plurality of panels can be in an expanded state in which the plurality of panels are expanded in a box shape, and in a folded state in which nesting with the other transport carriages is possible by folding the plurality of panels.
In the folded state, at least a part of each panel is respectively folded around the first side frame or the second side frame to form a first panel group including the first side frame, and the second side frame And a second panel group including
Let T be the thicker thickness of the total thickness of the first panel group and the total thickness of the second panel group, and n be the number of the transportable carts that can be nested. The rear panel located on the side is opened horizontally by a width of (n-1) x T or more.   The transport carriage according to claim 1, wherein in the folded state, a part of the back panel remains on the back side without being folded.   The transport carriage according to claim 1 or 2, wherein the carriage main body has two wheels each under the first side frame and below the second side frame.   The transport truck according to any one of claims 1 to 3, wherein each panel comprises an insulating panel.   The transport truck according to claim 4, wherein the heat insulation panel includes a vacuum heat insulating material or a foam heat insulating material.   The plurality of panels includes at least a top panel, a front panel, the back panel, a first side panel on the first side frame side, and a second side panel on the second side frame side. The transport carriage according to any one of Items 1 to 5.   The transport carriage of claim 6, wherein the plurality of panels further comprises a bottom panel.   The transport carriage of claim 6 or 7, wherein the front panel comprises a plurality of foldable front part panels.   The carriage main body further includes a foldable bottom plate, and the bottom plate is folded around the first side frame or the second side frame to configure the first panel group or the second panel group. A transport carriage according to any one of the preceding claims.   The transport truck according to any one of claims 1 to 9, wherein the plurality of panels are detachably attached to each other.   The plurality of panels have a panel provided with a pinched portion and a panel provided with a pinched portion sandwiching the pinched portion, and surface fasteners are respectively provided in the pinched portion and the pinched portion. The transport carriage according to claim 10, which is   The transport carriage according to claim 11, wherein the sandwiching portion has a loop portion of a surface fastener.

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