Box-shaped body and transportation carriage

Abstract

To provide a box-shaped body and a transportation carriage capable of suppressing a damage such as breakage of a side surface member by more stably fixing the side surface member when the box-shaped body is folded without being removed from a carriage.SOLUTION: A box-shaped body 10 comprises a top member 11, a front member 12, side surface members 13 and 14, a backside member 15, and a bottom member 16. Belt members 20 and 40 for fixing the side surface members 13 and 14 to a side panel of a carriage are fixed to the side surface members 13 and 14. The belt members 20 and 40 include a belt fixing part 22 fixed to the side surface members 13 and 14, and a belt upper part 21 extending upward from the belt fixing part 22. The belt fixing part 22 is positioned above a position Hf half of the side surface members 13 and 14 in a height direction.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present embodiment relates to a box-shaped body and a transport cart. [Background technology]

[0002] Conventionally, for example, in stores and factories, transport carts for transporting food and other loads have been used. Such transport carts have a cart such as a basket cart. A heat-insulating cart cover is attached to the cart to keep the food and other loads warm, cold, or protected. For example, one disclosed in Patent Document 1 is known as such a transport cart. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 5812953 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the transport cart disclosed in Patent Document 1, the fixing position between the belt part and the cold insulation cover is lower than the center position in the height direction of the cold insulation cover. Therefore, the cold insulation cover is not fixed sufficiently in the part above the center position in the height direction, and there is a risk that the cold insulation cover will turn inward or become loose. In this case, when the transport cart is nested, the cold insulation cover will interfere with other transport carts, etc., causing damage such as tears to the cold insulation cover.

[0005] The present disclosure provides a box-shaped body and a transport cart in which, when the box-shaped body is folded without removing it from the cart, the side members are fixed more stably, and damage such as tears to the side members can be prevented. [Means for solving the problem]

[0006] The embodiments of the present disclosure relate to the following [1] to [8].

[0007] [1] A box-shaped body mountable to a trolley having at least a pair of side panels and a back panel, the box-shaped body comprising a top member, a front member, at least a pair of side members, a back member, and a bottom member, wherein a belt member is fixed to at least one of the side members for fixing the side member to the side panel of the trolley, the belt member having a belt fixing portion fixed to the side member and a belt upper portion extending upward from the belt fixing portion, the belt fixing portion being located higher than halfway in the height direction of the side member.

[0008] [2] A box-shaped body as described in [1], wherein the belt fixing portion is located both above half of the height of the side member and below half of the height of the side member.

[0009] [3] A box-shaped body as described in [1], wherein the belt fixing portion is located only above half of the height of the side member.

[0010] [4] A box-shaped body described in any one of [1] to [3], wherein the side member has a fold line extending downward from the upper end and from the back side to the front side.

[0011] [5] A content filling system as described in [4], wherein the upper end of the belt fixing portion is positioned below the fold line.

[0012] [6] A content filling system described in any one of [1] to [5], wherein the height direction length of the side member is at least twice the depth direction length of the side member.

[0013] [7] A content filling system described in any one of [1] to [6], wherein the belt member further has a belt lower portion extending downward from the belt fixing portion.

[0014] [8] A transport cart comprising: a cart having at least one pair of side panels and a rear panel; and a box-shaped body described in any one of [1] to [7] attached to the box-shaped body. Effect of the Invention

[0015] According to this embodiment, when the box-shaped body is folded without removing it from the cart, the side members are fixed more stably, and damage such as tears to the side members can be suppressed. [Brief description of the drawings]

[0016] [Figure 1] FIG. 1 is a perspective view showing a transportation cart according to one embodiment. [Diagram 2] FIG. 2 is a perspective view showing a carriage of the transportation carriage according to the embodiment. [Diagram 3] FIG. 3 is a perspective view of the box-shaped body according to the embodiment as viewed from the front side. [Figure 4] FIG. 4 is a perspective view of the box-shaped body according to the embodiment as viewed from the rear side. [Diagram 5] 5(a) to 5(d) are perspective views showing a process of changing the box-shaped body from a folded state to an unfolded state in the transport cart according to the embodiment. [Figure 6] 6(a) to 6(d) are perspective views showing a process of changing the box-shaped body from an unfolded state to a folded state in the transport cart according to the embodiment. [Figure 7] 7(a) and (b) are perspective views showing a state in which a plurality of transport carts are stacked (nested) after the box-shaped bodies have been folded in the transport cart according to one embodiment. [Figure 8] 8(a) and (b) are schematic diagrams showing the side members and the belt member. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment will be described with reference to the drawings. Each of the figures shown below is a schematic illustration. Therefore, the size and shape of each part are appropriately exaggerated to facilitate understanding. In addition, it is possible to carry out appropriate modifications within the scope of the technical idea. In each of the figures shown below, the same parts are given the same reference numerals, and some detailed explanations may be omitted. In addition, the numerical values ​​such as dimensions of each member and the material names described in this specification are examples of an embodiment, and are not limited thereto, and can be appropriately selected and used. In this specification, terms that specify shapes and geometric conditions, such as parallel, orthogonal, and vertical, are intended to include substantially the same state in addition to their strict meanings.

[0018] In this specification, the term "front" refers to a surface perpendicular to the floor surface and facing the direction in which other transport carts enter when nesting. The term "rear surface" refers to a surface perpendicular to the floor surface and facing the front surface. The term "top surface" refers to a surface parallel to the floor surface and facing the upper side of the transport cart. The term "bottom surface" refers to a surface parallel to the floor surface and facing the lower side of the transport cart. The term "side surface" refers to a surface perpendicular to the floor surface and facing the left and right sides when viewed from the front side. In this specification, the term "height direction" refers to a direction parallel to the normal direction of the top and bottom surfaces, and a direction parallel to the Z direction in each drawing. The term "width direction" refers to a direction parallel to the normal direction of the side surface, and a direction parallel to the X direction in each drawing. The term "depth direction" refers to a direction parallel to the normal direction of the front and back surfaces, and a direction parallel to the Y direction in each drawing.

[0019] (Configuration of the transport cart) The configuration of a transportation cart according to this embodiment will be described with reference to Figs.

[0020] Fig. 1 is a perspective view showing an entire transport cart 100 according to this embodiment. As shown in Fig. 1, the transport cart 100 according to this embodiment includes a cart (cart main body) 50 and a box-shaped body 10 that is provided on the cart 50 so as to be freely unfoldable and foldable. The box-shaped body 10 includes a plurality of (six in this case) surface members 11-16.

[0021] The multiple surface members 11-16 include a top surface member 11, a front surface member 12, a first side surface member 13, a second side surface member 14, a back surface member 15, and a bottom surface member 16. Hereinafter, the top surface member 11, the front surface member 12, the first side surface member 13, the second side surface member 14, the back surface member 15, and the bottom surface member 16 are collectively referred to simply as surface members 11-16. The box-shaped body 10 can be in an unfolded state (see Figures 3, 4, and 5(d)) in which the multiple surface members 11-16 are unfolded and assembled into a box shape, and in a folded state (see Figure 7(a)) in which the multiple surface members 11-16 are folded.

[0022] FIG. 2 is a perspective view showing the entire dolly 50. As shown in FIG. 2, the dolly 50 includes a first side panel 53, a second side panel 54, a rear panel 55, and a bottom panel 56. The first side panel 53 is located to the right of the rear panel 55 when viewed from the front side. The first side panel 53 may be called a right panel. The second side panel 54 faces the first side panel 53 and is located to the left of the rear panel 55 when viewed from the front side. The second side panel 54 may be called a left panel. The rear panel 55 is located behind the bottom panel 56 and above the bottom panel 56. The bottom panel 56 is located below the first side panel 53, the second side panel 54, and the rear panel 55.

[0023] The first side panel 53 includes an upper horizontal bar 53a, a plurality of middle horizontal bars 53b, a front vertical bar 53c, a rear vertical bar 53d, and a plurality of middle vertical bars 53e. The upper horizontal bar 53a and the middle horizontal bar 53b each extend in the horizontal direction. The upper horizontal bar 53a is located at the top of the first side panel 53. The middle horizontal bar 53b is located between the upper horizontal bar 53a and the bottom panel 56. The front vertical bar 53c, the rear vertical bar 53d, and the middle vertical bar 53e each extend in the height direction. The front vertical bar 53c is located at the frontmost side of the first side panel 53. The rear vertical bar 53d is located at the rearmost side of the first side panel 53. The middle vertical bar 53e is located between the front vertical bar 53c and the rear vertical bar 53d.

[0024] The second side panel 54 includes an upper horizontal bar 54a, a plurality of intermediate horizontal bars 54b, a front vertical bar 54c, a rear vertical bar 54d, and a plurality of intermediate vertical bars 54e. The upper horizontal bar 54a and the intermediate horizontal bar 54b each extend in the horizontal direction. The upper horizontal bar 54a is located at the top of the second side panel 54. The intermediate horizontal bar 54b is located between the upper horizontal bar 54a and the bottom panel 56. The front vertical bar 54c, the rear vertical bar 54d, and the intermediate vertical bar 54e each extend in the height direction. The front vertical bar 54c is located at the frontmost side of the second side panel 54. The rear vertical bar 54d is located at the rearmost side of the second side panel 54. The intermediate vertical bar 54e is located between the front vertical bar 54c and the rear vertical bar 54d.

[0025] The rear panel 55 includes an upper horizontal bar 55a, a plurality of intermediate horizontal bars 55b, a first side vertical bar 55c, a second side vertical bar 55d, and a plurality of intermediate vertical bars 55e. The upper horizontal bar 55a extends in the horizontal direction. The upper horizontal bar 55a is located at the top of the rear panel 55. The intermediate horizontal bar 54b is located between the upper horizontal bar 55a and the bottom panel 56. The first side vertical bar 55c and the second side vertical bar 55d each extend in the height direction. The first side vertical bar 55c is located closest to the first side panel 53 of the rear panel 55. The second side vertical bar 55d is located closest to the second side panel 54 of the rear panel 55. The intermediate vertical bar 55e is located between the first side vertical bar 55c and the second side vertical bar 55d.

[0026] The bottom panel 56 is configured to be swingable around an edge portion on the rear panel 55 side. This allows the bottom panel 56 to be folded so as to contact the rear panel 55. At least one of the first side panel 53 and the second side panel 54 can be folded so as to contact the rear panel 55. For example, at least one of the first side panel 53 and the second side panel 54 is configured to be swingable around an edge portion on the rear panel 55 side.

[0027] A plurality of wheels 57 (four in total in this case) are provided below the first side panel 53 and the second side panel 54.

[0028] Next, the configuration of the box-shaped body 10 according to the present embodiment will be described with reference to Fig. 3 and Fig. 4. Fig. 3 is a perspective view of the box-shaped body 10 according to the present embodiment as seen from the front side. Fig. 4 is a perspective view of the box-shaped body 10 according to the present embodiment as seen from the rear side.

[0029] The box-shaped body 10 according to the present embodiment is used, for example, in a store, a factory, a logistics process, etc., when storing or transporting loads that require cooling or heating. In the box-shaped body 10, a storage space capable of storing loads is surrounded by six surface members 11 to 16. This is configured to suppress temperature changes inside the box-shaped body 10 as much as possible. The box-shaped body 10 may have thermal insulation properties, in which case the box-shaped body 10 may be called a cold insulation cover or a cold insulation bag. Alternatively, the box-shaped body 10 may not substantially have thermal insulation properties.

[0030] 3 and 4, the overall shape of the box-shaped body 10 is a box shape that can be mounted on a dolly 50 (FIG. 2). The overall shape of the box-shaped body 10 may be a substantially rectangular parallelepiped shape. As described above, the box-shaped body 10 includes the top surface member 11, the front surface member 12, the first side surface member 13, the second side surface member 14, the back surface member 15, and the bottom surface member 16.

[0031] The top surface member 11 is located on the top surface side. The top surface member 11 faces the bottom surface member 16 and is located above the back surface member 15. The front surface member 12 faces the back surface member 15 and is located in front of the top surface member 11. The first side surface member 13 is located to the right of the back surface member 15 when viewed from the front side. The first side surface member 13 may be called the right surface member. The second side surface member 14 faces the first side surface member 13 and is located to the left of the back surface member 15 when viewed from the front side. The second side surface member 14 may be called the left surface member. The back surface member 15 is located behind the bottom surface member 16. The bottom surface member 16 faces the top surface member 11 and is located above the back surface member 15.

[0032] The surface members 11 to 16 are each made of a flexible material. The surface members 11 to 16 may each have heat insulating properties. In this case, the surface members 11 to 16 may each be made of a material in which a heat insulating material is sandwiched between aluminum vapor deposition sheets. Examples of heat insulating materials include foamed polyethylene sheets and glass wool.

[0033] The back member 15 is connected at its upper end to the top member 11. The back member 15 is connected at its lower end to the bottom member 16. When viewed from the front side, the back member 15 is connected at its right end to the first side member 13 and at its left end to the second side member 14.

[0034] A plurality of (four in this case) mounting portions 31a to 31d are attached to the back surface member 15. Mounting portion 31a is located on the first side surface member 13 side. Mounting portion 31b is located on the second side surface member 14 side. Mounting portions 31c and 31d are each located on the top surface member 11 side. Each of these mounting portions 31a to 31d includes a pair of hook-and-loop fasteners that are detachable from each other.

[0035] The mounting portion 31a is wrapped around the first side vertical bar 55c of the rear panel 55, and the rear member 15 is fixed to the rear panel 55 by the hook-and-loop fastener of the mounting portion 31a. The mounting portion 31b is wrapped around the second side vertical bar 55d of the rear panel 55, and the rear member 15 is fixed to the rear panel 55 by the hook-and-loop fastener of the mounting portion 31b. The mounting portions 31c and 31d are each wrapped around the upper horizontal bar 55a of the rear panel 55, and the rear member 15 is fixed to the rear panel 55 by the hook-and-loop fasteners of the mounting portions 31c and 31d. In this way, the box-shaped body 10 is detachably attached to the rear panel 55 of the dolly 50.

[0036] A rear belt portion 32 is attached to the upper portion of the rear member 15 by, for example, sewing. The rear belt portion 32 includes a pair of hook-and-loop fasteners that are detachable from each other. When the box-shaped body 10 is attached to the dolly 50 in an unfolded state, the rear belt portion 32 hangs down from the rear side of the rear panel 55.

[0037] The top surface member 11 is connected at its front end to the front surface member 12. When viewed from the front side, the top surface member 11 is connected at its right end to the upper end of the first side surface member 13 and at its left end to the second side surface member 14.

[0038] The front member 12 can be bent at the bent portion 12c. The bent portion 12c is located at a distance substantially equal to L2, L4 (see Figs. 3 and 4) from the end of the front member 12 on the top member 11 side. The front member 12 has a front member upper portion 12a located above the bent portion 12c and a front member lower portion 12b located below the bent portion 12c.

[0039] The right end of the front member 12 and the front end of the first side member 13 are detachably attached by a line fastener 34a. The left end of the front member 12 and the front end of the second side member 14 are detachably attached by a line fastener 34b.

[0040] A front side belt part 36 is provided in the front member lower part 12b at a substantially central position near the bent part 12c. A front lower attachment part 37 is provided on the lower side of the back surface of the front member lower part 12b. The front lower attachment part 37 is detachable from a bottom side attachment part 38 (described later) provided on the bottom member 16. In this manner, the front member 12 is detachably connected to the bottom member 16 by the front lower attachment part 37 and the bottom side attachment part 38.

[0041] A bottom surface side mounting portion 38 is provided on the front side of the bottom surface member 16. As described above, the bottom surface side mounting portion 38 is detachable from the front surface lower mounting portion 37 provided on the front surface member lower portion 12b of the front surface member 12.

[0042] The first side surface member 13 contacts the right end of the bottom surface member 16 at its lower end, but the two are not directly connected to each other. As shown in Fig. 3, a belt member 20 and a first side surface upper attachment portion 26 are provided on the surface of the first side surface member 13. The belt member 20 has a belt upper portion 21, a belt fixing portion 22, and a belt lower portion 23. The belt upper portion 21 extends upward from the belt fixing portion 22. The belt lower portion 23 extends downward from the belt fixing portion 22.

[0043] The belt fixing portion 22 is a portion fixed to the first side member 13 by sewing or the like. The belt fixing portion 22 is located on the front side of the first side member 13. The upper end 22a of the belt fixing portion 22 is located at least above the half position Hf of the first side member 13 in the height direction. In the example shown in FIG. 3 and FIG. 4, the belt fixing portion 22 is located both above the half position Hf of the first side member 13 in the height direction and below the half position Hf of the first side member 13 in the height direction. The belt fixing portion 22 extends continuously from above the half position Hf of the first side member 13 in the height direction to below the half position Hf of the height direction. This allows the belt member 20 to be firmly fixed to the first side member 13. The length of the portion of the belt fixing portion 22 that is above the half position Hf of the first side member 13 in the height direction may be longer, shorter, or the same as the length of the portion that is below the half position Hf of the height direction.

[0044] The first side surface upper attachment portion 26 is located above the belt fixing portion 22. The first side surface upper attachment portion 26 may be provided in the vicinity of the upper end portion of the first side surface member 13. The first side surface upper attachment portion 26 may be a hook-and-loop fastener.

[0045] The belt fixing part 22 is provided with a first belt attachment part 24a. The first belt attachment part 24a is detachable from a fifth belt attachment part 24e provided on the belt lower part 23. A second belt attachment part 24b and a third belt attachment part 24c are provided near the upper end part of the belt upper part 21. The third belt attachment part 24c is located below the second belt attachment part 24b and is provided with a predetermined distance therebetween. The second belt attachment part 24b and the third belt attachment part 24c are detachable from each other.

[0046] The belt upper part 21 is provided with a fourth belt attachment part 24d. The fourth belt attachment part 24d is located on the surface opposite to the second belt attachment part 24b and the third belt attachment part 24c. The fourth belt attachment part 24d is located at a position facing the first side surface upper attachment part 26 when the belt upper part 21 is stretched upward. The fourth belt attachment part 24d and the first side surface upper attachment part 26 are detachable from each other. The belt upper part 21 has a length such that at least the second belt attachment part 24b is located above the upper end part of the first side surface member 13 when stretched upward.

[0047] The fifth belt attachment portion 24e is provided near the lower end of the belt lower portion 23. As described above, the fifth belt attachment portion 24e is detachable from the first belt attachment portion 24a provided on the belt fixing portion 22. The belt lower portion 23 is long enough that its tip is located above the lower end of the first side member 13 when it is stretched downward. The belt lower portion 23 does not have to be integrated with the belt upper portion 21. For example, the belt upper portion 21 and the belt lower portion 23 may be separated from each other at the belt fixing portion 22. Alternatively, the belt member 20 may not have the belt lower portion 23. In this case, another attachment portion (not shown) extending horizontally may be provided on the first side member 13, and the other attachment portion may be fixed to, for example, the intermediate vertical bar 53e.

[0048] The second belt attachment portion 24b or the third belt attachment portion 24c may be detachable from the first belt attachment portion 24a. In this case, when the belt member 20 is not used, the second belt attachment portion 24b or the third belt attachment portion 24c is attached to the first belt attachment portion 24a. This allows the belt member 20 to be formed in a loop shape, and prevents the belt member 20 from sagging.

[0049] The belt attachment portions 24a to 24e may each be a hook-and-loop fastener.

[0050] A folding line 13f is provided on the first side surface member 13 from the upper end downward and from the back side to the front side. The folding line 13f bisects a corner located on the top surface side and the back surface side of the first side surface member 13. A lower end 13g of the folding line 13f may be located at substantially the same position as one end of the bent portion 12c.

[0051] The height L1 of the first side member 13 is at least twice the depth L2 of the first side member 13 (L1≧2×L2). In this case, even if the belt fixing portion 22 is located above the halfway position Hf of the first side member 13 in the height direction, the first side member 13 can be easily folded along the folding line 13f. In addition, the upper end 22a of the belt fixing portion 22 is preferably located below the folding line 13f. This prevents the first side member 13 from becoming difficult to fold along the folding line 13f.

[0052] The second side surface member 14 is in contact with the left end of the bottom surface member 16 at its lower end, and the two are not directly connected to each other. As shown in Fig. 4, a belt member 40 and a second side surface upper attachment portion 46 are provided on the surface of the second side surface member 14. The belt member 40 has a belt upper portion 41, a belt fixing portion 42, and a belt lower portion 43. The belt upper portion 41 extends upward from the belt fixing portion 42. The belt lower portion 43 extends downward from the belt fixing portion 42.

[0053] The belt fixing portion 42 is a portion fixed to the second side member 14 by sewing or the like. The belt fixing portion 42 is located on the front side of the second side member 14. The upper end 42a of the belt fixing portion 42 is located at least above the half position Hf of the second side member 14 in the height direction. In the example shown in FIG. 3 and FIG. 4, the belt fixing portion 42 is located both above the half position Hf of the second side member 14 in the height direction and below the half position Hf of the second side member 14 in the height direction. The belt fixing portion 42 extends continuously from above the half position Hf of the second side member 14 in the height direction to below the half position Hf of the second side member 14 in the height direction. This allows the belt member 40 to be firmly fixed to the second side member 14. The length of the portion of the belt fixing portion 42 that is above the half position Hf of the second side member 14 in the height direction may be longer, shorter, or the same as the length of the portion that is below the half position Hf of the second side member 14 in the height direction.

[0054] The second side surface upper attachment portion 46 is located above the belt fixing portion 42. The second side surface upper attachment portion 46 may be provided in the vicinity of the upper end portion of the second side surface member 14. The second side surface upper attachment portion 46 may be a hook-and-loop fastener.

[0055] The belt fixing part 42 is provided with a first belt attachment part 44a. The first belt attachment part 44a is detachable from a fifth belt attachment part 44e provided on the belt lower part 43. A second belt attachment part 44b and a third belt attachment part 44c are provided near the upper end part of the belt upper part 41. The third belt attachment part 44c is located below the second belt attachment part 44b and is provided with a predetermined distance therebetween. The second belt attachment part 44b and the third belt attachment part 44c are detachable from each other.

[0056] The belt upper part 41 is provided with a fourth belt attachment part 44d. The fourth belt attachment part 44d is located on the surface opposite to the second belt attachment part 44b and the third belt attachment part 44c. The fourth belt attachment part 44d is located at a position facing the second side upper attachment part 46 when the belt upper part 41 is stretched upward. The fourth belt attachment part 44d and the second side upper attachment part 46 are detachable from each other. The belt upper part 41 has a length such that at least the second belt attachment part 44b is located above the upper end part of the second side member 14 when stretched upward.

[0057] A fifth belt attachment portion 44e is provided near the lower end of the belt lower portion 43. As described above, the fifth belt attachment portion 44e is detachable from the first belt attachment portion 44a provided on the belt fixing portion 42. The belt lower portion 43 is long enough that its tip is located above the lower end of the second side member 14 when it is stretched downward. The belt lower portion 43 does not have to be integrated with the belt upper portion 41. For example, the belt upper portion 41 and the belt lower portion 43 may be separated from each other at the belt fixing portion 42. Alternatively, the belt member 40 may not have the belt lower portion 43. In this case, another attachment portion (not shown) extending horizontally may be provided on the second side member 14, and the other attachment portion may be fixed to, for example, the intermediate vertical bar 54e.

[0058] The second belt attachment portion 44b or the third belt attachment portion 44c may be detachable from the first belt attachment portion 44a. In this case, when the belt member 40 is not in use, the second belt attachment portion 44b or the third belt attachment portion 44c is attached to the first belt attachment portion 44a. This allows the belt member 40 to be formed in a loop shape, and prevents the belt member 40 from sagging.

[0059] The belt attachment portions 44a to 44e may each be a hook-and-loop fastener.

[0060] A folding line 14f is provided on the second side surface member 14 from the upper end downward and from the back side to the front side. The folding line 14f bisects a corner located on the top surface side and the back surface side of the second side surface member 14. A lower end 14g of the folding line 14f may be located at substantially the same position as the other end of the bent portion 12c.

[0061] The height L3 of the second side member 14 is at least twice the depth L4 of the second side member 14 (L3≧2×L4). In this case, even if the belt fixing portion 42 is located above the halfway position Hf of the second side member 14 in the height direction, the second side member 14 can be easily folded along the folding line 14f. In addition, the upper end 42a of the belt fixing portion 42 is preferably located below the folding line 14f. This prevents the second side member 14 from becoming difficult to fold along the folding line 14f.

[0062] The above-described surface members 11 to 16 may be connected to each other by sewing or the like in the portions not specifically described above.

[0063] Next, the procedure for mounting the box-shaped body 10 on the dolly 50 will be described with reference to FIGS.

[0064] First, as shown in FIG. 5(a), with the box-shaped body 10 folded, the mounting portions 31c, 31d provided on the upper end portion of the back member 15 are attached to the upper horizontal bar 54a of the back panel 55 of the dolly 50.

[0065] The mounting portion 31a provided on the rear member 15 is attached to the first side vertical bar 55c of the rear panel 55. The mounting portion 31b provided on the rear member 15 is attached to the second side vertical bar 55d of the rear panel 55.

[0066] 5(b), the belt member 20 provided on the first side member 13 is attached to the upper horizontal bar 53a of the first side panel 53. Also, the belt member 40 provided on the second side member 14 is attached to the upper horizontal bar 54a of the second side panel 54.

[0067] During this, first, the first side surface member 13 is deployed toward the first side surface panel 53 so that the first side surface member 13 comes into contact with the first side surface panel 53. Next, the belt upper portion 21 of the belt member 20 is wound around the upper horizontal bar 53a of the first side surface panel 53, and the second belt attachment portion 24b provided on the belt upper portion 21 is affixed to the third belt attachment portion 24c (FIG. 3). At this time, the fourth belt attachment portion 24d provided on the belt upper portion 21 is affixed to the first side surface upper attachment portion 26 provided on the upper portion of the first side surface member 13 (FIG. 3).

[0068] Similarly, the second side surface member 14 is deployed onto the second side surface panel 54 so that the second side surface member 14 comes into contact with the second side surface panel 54. Next, the belt upper portion 41 of the belt member 40 is wound around the upper horizontal bar 54a of the second side surface panel 54, and the second belt attachment portion 44b provided on the belt upper portion 41 is affixed to the third belt attachment portion 44c (FIG. 4). At this time, the fourth belt attachment portion 44d provided on the belt upper portion 41 is affixed to the second side surface upper attachment portion 46 provided on the upper portion of the second side surface member 14 (FIG. 4).

[0069] Next, as shown in FIG. 5(c), the belt member 20 provided on the first side member 13 is attached to the intermediate horizontal bar 53b provided on the first side panel 53, and the belt member 20 provided on the second side member 14 is attached to the intermediate horizontal bar 54b provided on the second side panel 54.

[0070] During this time, the belt lower portion 23 of the belt member 20 located on the first side surface member 13 is wound around one of the middle horizontal bars 53b of the first side surface panel 53. Next, the fifth belt attachment portion 24e provided on the belt lower portion 23 is attached to the first belt attachment portion 24a provided on the belt fixing portion 22 (FIG. 3). When attaching the fifth belt attachment portion 24e to the first belt attachment portion 24a, the worker pulls the belt lower portion 23 downward so that the belt member 20 is attached in a state where sufficient tension is generated.

[0071] In this manner, with the first side surface upper attachment portion 26 of the first side surface member 13 attached to the fourth belt attachment portion 24d of the belt member 20, the belt lower portion 23 is pulled downward so that sufficient tension is generated in the belt member 20, and the fifth belt attachment portion 24e of the belt lower portion 23 is attached to the first belt attachment portion 24a of the belt fastening portion 22. Therefore, in the first side surface member 13, tension is generated from the arrangement position of the first side surface upper attachment portion 26 to the arrangement position of the belt fastening portion 22. As a result, the belt member 20 attached to the first side surface panel 53 in a state of sufficient tension is in intimate contact with and fixed to the belt member 20 from the first side surface upper attachment portion 26 to the belt fastening portion 22.

[0072] Furthermore, in the second side surface member 14, the belt lower portion 43 of the belt member 40 is wound around one of the middle horizontal bars 54b of the second side surface panel 54. Next, the fifth belt attachment portion 44e provided on the belt lower portion 43 is attached to the first belt attachment portion 44a provided on the belt fixing portion 42 (FIG. 4). When attaching the fifth belt attachment portion 44e to the first belt attachment portion 44a, the worker pulls the belt lower portion 43, and attaches them together in a state where sufficient tension is generated in the belt member 40.

[0073] In this manner, with the second side surface upper attachment portion 46 of the second side surface member 14 attached to the fourth belt attachment portion 44d of the belt member 40, the belt lower portion 43 is pulled downward so that sufficient tension is generated in the belt member 40, and the fifth belt attachment portion 44e of the belt lower portion 43 is attached to the first belt attachment portion 44a of the belt fastening portion 42. Therefore, in the second side surface member 14, tension is generated from the arrangement position of the second side surface upper attachment portion 46 to the arrangement position of the belt fastening portion 42. As a result, the belt member 40 attached to the second side surface panel 54 in a state of sufficient tension is in intimate contact with and fixed to the belt member 40 from the second side surface upper attachment portion 46 to the belt fastening portion 42.

[0074] Next, as shown in Fig. 5(c), the bottom member 16 that has been folded while being in contact with the back member 15 is unfolded. After that, as shown in Fig. 5(c) and (d), the front member 12 that has been folded on the inside of the upper surface of the top member 11 is unfolded, and the front member 12 is closed (unfolded) by the line fasteners 34a and 34b.

[0075] Next, with reference to Figs. 6(a)-(d) and Figs. 7(a) and (b), a case where the dolly 50 with the box-shaped body 10 attached thereto is folded for storage will be described.

[0076] 6(a), the line fastener 34a connecting the first side member 13 and the front member 12 and the line fastener 34b connecting the second side member 14 and the front member 12 are opened. Then, the front lower attachment portion 37 of the front member 12 is peeled off from the bottom attachment portion 38 of the bottom member 16.

[0077] 6(a) and (b), the front member 12 is folded at the bend line 12c and stored inside the top member 11 and the back member 15. At this time, the front member 12 is stored by aligning the front member lower part 12b of the front member 12 with the inner surface side of the back member 15 and aligning the front member upper part 12a with the inner surface side of the top member 11. Furthermore, a hook-and-loop fastener (not shown) located on the inner side of the front member lower part 12b may be attached to a hook-and-loop fastener (not shown) located on the inner surface of the back member 15. This makes it possible to prevent the front member 12 from falling off the top member 11 and the back member 15.

[0078] Next, as shown in FIG. 6(c), in the first side member 13, the first side upper attachment portion 26 is peeled off from the fourth belt attachment portion 24d provided on the belt member 20 (FIG. 3). In addition, in the second side member 14, the second side upper attachment portion 46 is peeled off from the fourth belt attachment portion 44d provided on the belt member 40 (FIG. 4). Next, the first side member 13 and the second side member 14 are folded along the folding line 13f formed on the first side member 13 and the folding line 14f formed on the second side member 14. Thereafter, the top member 11 is folded so as to contact the back member 15. Note that the side upper attachment portions 26, 46 may be peeled off from the fourth belt attachment portions 24d, 44d, respectively, by pushing the top member 11 down toward the back member 15.

[0079] 6(d), the bottom member 16 is folded so that the bottom member 16 comes into contact with the back member 15. At this time, the bottom panel 56 of the dolly 50 is also folded towards the back panel 55 side.

[0080] 7(a), with the first side surface member 13 fixed to the first side surface panel 53 of the dolly 50 by the belt member 20, the first side surface panel 53 is folded towards the rear panel 55. This brings the rear surface of the first side surface member 13 into contact with the bottom panel 56.

[0081] In this manner, the transport cart 100 including the box-shaped body 10 and the cart 50 to which the box-shaped body 10 is attached can be folded up and stored in an orderly manner. As shown in Fig. 7(b), a plurality of transport carts 100 can be stacked (nested) for storage.

[0082] Furthermore, when the transport cart 100 is to be used from the folded state, the above-described steps for folding the transport cart 100 are carried out in reverse order.

[0083] As described above, according to this embodiment, the belt member 20 provided on the first side member 13 has a belt fixing portion 22 and a belt upper portion 21. The belt fixing portion 22 is located above the halfway position Hf of the first side member 13 in the height direction. Similarly, the belt member 40 provided on the second side member 14 has a belt fixing portion 42 and a belt upper portion 41. The belt fixing portion 42 is located above the halfway position Hf of the second side member 14 in the height direction.

[0084] This prevents the portions of the first side surface member 13 and the second side surface member 14 located above the belt fixing parts 22 and 42 from turning inward or becoming loose. Specifically, the portions of the first side surface member 13 and the second side surface member 14 indicated by the reference symbol A in Fig. 6(d) and Fig. 7(a) do not bulge inward or bulge only slightly. Therefore, when a plurality of transport carts 100 are stacked and nested (Fig. 7(b)), interference between the other transport carts 100 and the first side surface member 13 or the second side surface member 14 is prevented. As a result, damage to the first side surface member 13 or the second side surface member 14 can be prevented.

[0085] In contrast, as a comparative example, a case is assumed in which the belt fixing parts 22, 42 of the first side member 13 and the second side member 14 are only located below a position Hf that is halfway in the height direction of the first side member 13 and the second side member 14. In this case, the unfixed parts of the first side member 13 and the second side member 14 above the belt fixing parts 22, 42 become large. For this reason, this unfixed part may turn inward or become loose, resulting in a collision with another transport cart 100, which may cause the first side member 13 and the second side member 14 to break.

[0086] According to this embodiment, the belt fixing portions 22, 42 of the first side member 13 and the second side member 14 are located above the half position Hf in the height direction of the first side member 13 and the second side member 14, so that the length of the belt upper portions 21, 41 can be shortened. This reduces the moment acting on the belt upper portions 21, 41, so that even if a force is applied to the belt upper portions 21, 41, the fourth belt attachment portions 24d, 44d are prevented from coming off the upper side attachment portions 26, 46. In this case, the fourth belt attachment portions 24d, 44d and the upper side attachment portions 26, 46 may be made of materials that have a weak adhesive strength with respect to each other.

[0087] According to this embodiment, the first side surface member 13 and the second side surface member 14 are provided with folding lines 13f, 14f extending downward from their upper ends and from the back side to the front side, respectively. This allows the first side surface member 13 and the second side surface member 14 to be folded along the folding lines 13f, 14f. In addition, the top surface member 11 on which the front surface member 12 is placed can be folded so as to come into contact with the back surface member 15.

[0088] Next, various modifications of this embodiment will be described.

[0089] In the above-described embodiment, as shown in FIG. 8(a), an example has been described in which the belt fixing portions 22, 42 continue from above the half-height position Hf of the first side member 13 and the second side member 14 to below the half-height position Hf.

[0090] However, as shown in Fig. 8(b), the belt fixing parts 22, 42 may be located only above the half position Hf of the first side member 13 and the second side member 14 in the height direction. In this case, the length of the belt lower parts 23, 43 can be increased, so that the belt members 20, 40 can be wound around the intermediate horizontal bars 53b, 54b at various height positions. Alternatively, in Fig. 8(b), the length of the belt lower parts 23, 43 may be kept short. In this case, when the belt lower parts 23, 43 are hanging down, it is possible to prevent the belt lower parts 23, 43 from being caught in the wheels 57 of the dolly 50.

[0091] In the above-described embodiment, the belt fastening portions 22, 42 of both the first side member 13 and the second side member 14 are positioned above the half position Hf of the first side member 13 and the second side member 14 in the height direction, but this is not limiting. The belt fastening portion 22 of the first side member 13 may be positioned above the half position Hf of the first side member 13 in the height direction, and the belt fastening portion 42 of the second side member 14 may not be positioned above the half position Hf of the second side member 14 in the height direction. Alternatively, the belt fastening portion 42 of the second side member 14 may be positioned above the half position Hf of the second side member 14 in the height direction, and the belt fastening portion 22 of the first side member 13 may not be positioned above the half position Hf of the first side member 13 in the height direction.

[0092] In the above-described embodiment, a hook-and-loop fastener is used as the belt attachment portions 24a-24d, the first side upper attachment portion 26, the attachment portions 31a-31d, the belt attachment portions 44a-44d, and the second side upper attachment portion 46. However, the present invention is not limited to this, and instead of the hook-and-loop fastener, a button, a hook, or the like may be used as long as the member is attachable and detachable by the force of an operator.

[0093] It is also possible to combine the multiple components disclosed in the above embodiment and modified examples as necessary. Alternatively, some components may be deleted from all the components shown in the above embodiment and modified examples. [Explanation of symbols]

[0094] 10 Box-shaped body 11 Top surface parts 12 Front member 13 First side member 14 Second side member 15 Rear member 16 Bottom member 20 Belt member 21 Belt top 22 Belt fixing part 23 Belt bottom 40 Belt member 41 Belt top 42 Belt fixing part 43 Belt bottom 50 Carts 53 First side panel 54 Second Side Panel 55 Rear Panel 56 Bottom Panel 57 Wheels 100 Transport Cart

Claims

1. A box-shaped body that can be attached to a dolly and has at least a pair of side panels and a back panel, The device includes a top surface member, a front surface member, at least one pair of side surface members, a rear surface member, and a bottom surface member, A belt member is fixed to at least one of the side members for fixing the side member to the side panel of the dolly; The belt member has a belt fixing portion fixed to the side member and a belt upper portion extending upward from the belt fixing portion, The belt fixing portion is located above the halfway point in the height direction of the side member.

2. The box-shaped body according to claim 1 , wherein the belt fixing portion is located both above half of the side member in the height direction and below half of the side member in the height direction.

3. The box-shaped body according to claim 1 , wherein the belt fixing portion is located only above half of the side member in a height direction.

4. The box-shaped body according to claim 1 , wherein the side members are provided with folding lines extending downward from their upper ends and from the rear side to the front side.

5. The box-shaped body according to claim 4 , wherein an upper end of the belt fixing portion is located below the folding line.

6. The box-shaped body according to claim 1 , wherein the length of the side member in the height direction is at least twice as long as the length of the side member in the depth direction.

7. The box-shaped body according to claim 1 , wherein the belt member further includes a belt lower portion extending downward from the belt fixing portion.

8. a dolly having at least a pair of side panels and a rear panel; A transport cart comprising: a box-shaped body according to any one of claims 1 to 7 attached to the box-shaped body.

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