JP6643175B2 - Transport trolley cover - Google Patents

Description

  BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport vehicle cover that defines a space for storing articles on the transport vehicle.

  The transport vehicle is provided with a bogie main body configured to be freely movable by wheels, and a pair of side frames erected on the bogie main body so as to be separated from each other on the left and right sides. It is placed and attached between the side frames (for example, see Patent Document 1). In the transport trolley, the articles are stored inside a cover to control the temperature of the articles and to protect the articles from dust and the like. In order to cope with nesting in which a plurality of transport vehicles are stored in a nested manner, such a transport vehicle cover is foldable so as to be flat from a box-like body capable of storing articles.

JP-A-8-301119

  However, the cover of Patent Literature 1 uses a large opening / closing surface material that is opened and closed at the time of use on the front and rear surfaces between a pair of front and rear side frames when folding a paper bag having a flat bottom formed flat. It is necessary to fold between a pair of front and rear side members using a mountain-shaped fold. For this reason, the procedure for folding the entire cover becomes complicated.

  That is, the present invention has been proposed in view of the above-described problems relating to the conventional art, and has been proposed to appropriately solve these problems, and an object of the present invention is to provide a cover for a transport vehicle that can be easily folded.

In order to overcome the above-mentioned problems and achieve the intended purpose, the cover for a transport vehicle according to the invention according to claim 1 of the present application is:
At least one of the six surfaces is opened and closed to provide a box-like body capable of taking in and out of articles, comprising six wall portions,
Each of a pair of first wall portions forming opposing surfaces of the box-shaped body is separable from a second wall portion and both third wall portions each having three sides forming another surface, and the other side is used as a fulcrum. It is possible to bend the inside of the box-shaped body so as to be along the second wall portion where the one side is continuous, and it is possible to form a cylindrical body having an open surface facing the box-shaped body,
Each of the pair of third wall portions forming the facing surfaces of the box-shaped body is configured to be foldable by a fold portion provided on the third wall portion, and the third wall portion is bent by the fold portion. The gist of the present invention is that the tubular body can be folded so that the second wall portions forming the facing surfaces of the tubular body are relatively close to each other.
According to the first aspect of the present invention, by folding both the third wall portions at the folding portion, the tubular body obtained by folding both the first wall portions along the second wall portion can be easily folded, The folded state in which the first and third wall portions are disposed between the second wall portions can be easily changed without a complicated process.

In the invention according to claim 2, the gist is that the third wall portion is configured to be bent at the folding portion and folded toward the inside of the tubular body.
According to the second aspect of the invention, the folded third wall portion can be accommodated between the second wall portions, and the folded cover can be made more compact.

The gist of the invention according to claim 3 is that the folded portions of the opposing third wall portions are provided at positions shifted from each other.
According to the third aspect of the present invention, both the third wall portions can be properly accommodated between the bent counterparts, so that the cylindrical body can be more easily folded and the cover in the folded state. Can be made more compact.

In the invention according to claim 4, the second wall portion, which forms a vertical surface in the box-like body, has a flexible sheet material as a main body, and a vertical reinforcing plate is disposed below the sheet material. Is the gist.
According to the fourth aspect of the present invention, the posture of the second wall portion, which forms a vertical surface in the box-like body, can be maintained by the weight of the vertical reinforcing plate.

In the invention according to claim 5, the first wall portion, which forms the top surface of the box-like body, is arranged on a flexible sheet material in a direction facing the second wall portion on the sheet material. And a plurality of top surface reinforcing plates, and the first wall portion is configured to be bendable between adjacent top surface reinforcing plates.
According to the invention according to claim 5, the first wall portion forming the top surface of the box-shaped body is reinforced by the top surface reinforcing plate, but can be bent between the adjacent top surface reinforcing plates. When the first wall portion is folded into the box-shaped body, the first wall portion can be easily folded while suppressing interference with other wall portions.

In the invention according to claim 6, at least one of the third wall portions forming a vertical surface in the box-shaped body has the first wall portion and the both second wall portions each having three sides forming a bottom surface of the box-shaped body. The gist is that a fixing belt that is configured to be detachable with respect to the third wall portion and that connects the upper portion of the third wall portion and the upper portion of the second wall portion is provided so as to straddle the removable side of the third wall portion. .
According to the invention according to claim 6, the first wall portion is separable from the third wall portion, but the third wall portion and the second wall portion are completely separated by the fixing belt. Can be prevented.

In the invention according to claim 7, the one side of the first wall portion is separated from an edge of the sheet material forming the first wall portion and an edge of the sheet material forming the second wall portion. The gist of the invention is that the flexible hinge is connected to the second wall.
According to the invention according to claim 7, since the edge of the sheet material forming the first wall and the edge of the sheet material forming the second wall are connected to each other with the hinge separated from each other, the first Interference between the wall and the second wall can be prevented, and the first wall can be easily folded.

In the invention according to claim 8, the first wall portion and the bent third wall portion are overlapped with each other between the second wall portions, and the folded body obtained by folding the tubular body is removed from the third wall portion. The gist of the present invention is that it can be bent along a line that intersects the folded portion.
According to the invention according to claim 8, the cover in the folded state can be made more compact.

In the invention according to claim 9, the second wall portion is configured to be detachably mounted on one of the second wall portions by being bridged to the other of the second wall portion, and the second wall portion is provided between the second wall portions. The gist is that a holding means for holding a folded state in which the first wall portion and the bent third wall portion are overlapped is provided.
According to the ninth aspect of the present invention, the cover can be held by the holding means in a folded state so that the cover is not separated.

  ADVANTAGE OF THE INVENTION According to the cover for conveyance vehicles which concerns on this invention, it can be easily folded.

FIG. 2 is a front view showing a transport vehicle with a transport vehicle cover according to a preferred embodiment of the present invention. It is a right view which shows the conveyance trolley which attached the cover for conveyance trolleys of an Example. (a) is a front view which shows the cover for transport vehicles of an Example, (b) is a top view which shows the cover for transport vehicles of an Example. (a) is a right side view showing the transport vehicle cover of the embodiment, and (b) is a left side view showing the transport vehicle cover of the embodiment. It is a schematic perspective view which shows the cover for conveyance trolleys of an Example in a box-shaped body, and has a 3rd wall part closed state. It is a schematic perspective view which shows the cover for conveyance carts in a box-shaped body, and is in the state which opened the 3rd wall part. It is a schematic perspective view which shows the cover for conveyance trolleys of an Example, and shows the state in which the 1st bottom wall part was folded. It is a schematic perspective view which shows the cover for conveyance carts which folded both 1st wall parts and made it cylindrical. It is a schematic perspective view which shows the cover for conveyance trolleys in a cylindrical body, and shows the process in which both 3rd wall parts are being folded and folded. It is a schematic perspective view which shows the cover for conveyance vehicles which folded. It is a top view which shows the cover for conveyance vehicles which folded, and has demonstrated the folding process of both 3rd wall parts. It is a front view which shows the state which folded the cover for conveyance vehicles. It is a front view which shows the state which further folded the cover for conveyance carts from the folded state. It is explanatory drawing which shows a top surface hinge.

  Next, a transport vehicle cover according to the present invention will be described below with reference to the accompanying drawings by way of preferred embodiments.

  As shown in FIGS. 1 and 2, a transport vehicle cover (hereinafter simply referred to as a cover) 20 according to the embodiment is used by being mounted on the transport vehicle 10. The transport vehicle 10 includes a vehicle body 12 having wheels 13 provided at four corners on a lower surface, and a pair of side frames 14, 14 provided on the vehicle body 12 so as to be separated from each other in the left and right directions. In the carrier 10, the carrier 16 provided on the carrier main body 12 is rotatable with respect to the carrier main body 12 about the right hinge 12 a as a fulcrum. The carrier 16 constitutes a mounting surface for articles in a state where the carrier 16 covers the carriage main body 12 in the lying posture shown in FIG. Further, as shown in FIG. 13 (a), the loading platform 16 is locked by the loading platform locking tool 18 provided on the right side frame 14 in the standing posture set up along the right side frame 14, It is held in a standing posture.

  As shown in FIGS. 1 to 4, the cover 20 includes six walls 22, 24, 26, 28, 30, 32 that form a six-sided box-shaped body in the carrier 10. The cover 20 is configured to be deformable into a box-like body (FIGS. 1 to 4) and a folded body (FIGS. 10 to 12) which is folded from the box-like body and is folded flat. More specifically, the cover 20 is composed of a pair of first wall portions 22 and 24 that are arranged above and below the box-shaped body, and a pair of second wall portions 26 and 28 that are arranged on the left and right sides of the box-shaped body. And a pair of third wall portions 30 and 32 that are disposed opposite to each other in front and behind the box-shaped body. The cover 20 in the box-like body places the first wall portion (bottom first wall portion) 22 on the carrier 16 of the transport vehicle 10 between the left and right side frames 14, 14 and faces the side frame 14. The mounting means 34 provided on the second wall portions 26 and 28 is mounted on the side frame 14 and mounted on the transport vehicle 10.

  As shown in FIG. 6, the cover 20 in the box-like body opens and closes the third front and rear wall portions 30 and 32, and stores articles from both front and rear sides into the storage space 20 a defined inside the box-like body. It is configured to be removable. Each of the wall portions 22, 24, 26, 28, 30, 32 is formed by sewing a sheet material 36 (see FIG. 14) having required functions such as flexibility, heat insulation and light shielding, such as an aluminum vapor-deposited plastic sheet. The walls 22, 24, 26, 28, 30, 32 are connected to each other by sewing the sheet material 36 directly or indirectly as a main body. The wall portions 22, 24, 26, 28, 30, 32 are formed by stacking two sheet materials 36, and reinforcing plates 38, 40 (see FIGS. 5 and 14) such as plastic cardboard are provided on the wall portions. When arranged at 22, 24, 26, 28, 30, 32, it is sealed between two sheet materials 36. In the embodiment, the cover 20 in the box-shaped body has a width in the left and right direction (the width of the third wall portions 30 and 32 = the width between the opposing second wall portions 26 and 28). (The width of the wall portions 26, 28 = the width between the opposing third wall portions 30, 32).

  As shown in FIGS. 5 and 6, the cover 20 includes, as the first wall, a bottom first wall 22 that forms the bottom of the box, and a top first wall 24 that forms the top of the box. And As shown in FIGS. 7 and 8, each of the first wall portions 22 and 24 has three front and rear sides and a left second wall portion 26 and three front and rear third wall portions 30 and 32, and can be bent with the hinges 42 and 44 provided on the remaining right side (one side) as fulcrums. The cover 20 separates each of the first wall portions 22, 24 having the front, rear, and left sides from the left second wall portion 26 and the front and rear third wall portions 30, 32, from the right second wall portion 28. It can be bent by hinges 42 and 44 toward the inside of the box-like body along the inner surface, and can be deformed into a cylindrical body having open upper and lower surfaces facing the box-like body (see FIG. 8).

  As shown in FIG. 6, the first bottom wall portion 22 has flaps 22a, 22b extending from the left edge and the front and rear edges of the main body portion formed in a rectangular shape in accordance with the lower opening of the box-shaped body. Are provided respectively. The right side of the main body portion of the bottom first wall portion 22 is continuous with the lower side of the right second wall portion 28, and the front and rear sewing provided on the boundary with the second wall portion 28 as a bottom hinge 42. By bending along the line, the posture can be changed between a posture orthogonal to the right second wall portion 28 (FIG. 6) and a posture overlapping the inner surface of the right second wall portion 28 (FIG. 7). Each of the flaps 22a and 22b can be bent with respect to the main body portion along a sewing line provided at a boundary with the main body portion. Posture. First front fasteners 46 as attachment means are provided on the front and rear first flaps 22a across the left and right sides of the outer surface. A second surface fastener 48 as an attachment means is provided on the inner surface of the left flap 22b across the front and rear.

  When the cover 20 forms a box-like body, the first surface fastener 46 is provided as a mounting means provided as a mounting means provided on the left and right at the lower part of the third wall portions 30 and 32 overlapping the outside of the first flap 22a. It is detachable from the three-sided fastener 50 (see FIG. 7). When the second surface fastener 48 is bent so as to overlap the bottom first wall portion 22 with the right second wall portion 28, the second surface fastener 48 is moved forward and backward at a position overlapping with the second flap 22b extending straight with respect to the main body portion. It can be attached to and detached from the fourth surface fastener 52 (FIGS. 6 and 7) as attachment means provided over the entire surface. The first bottom wall portion 22 is formed of the sheet material 36 described above except for the hook-and-loop fasteners 46 and 48 or the cloth reinforcing material for reinforcing the edges of the flaps 22a and 22b and the space between the flaps 22a and 22b and the main body. And can be bent and deformed.

  As shown in FIG. 3B and FIG. 5, the top surface first wall portion 24 is formed in a rectangular shape in accordance with the upper opening of the box-shaped body, and three sides of the front and rear sides and the left side are attachment / detachment means. The first line fastener 54 is detachable from the upper edges of the front and rear third wall portions 30 and 32 and the upper edge of the left second wall portion 26. In the embodiment, one first line fastener 54 extends over three sides of the first wall 24 on the top surface. Further, the right side of the top surface first wall portion 24 is connected to the upper side of the right second wall portion 28 via the top surface hinge 44, and is bent at the top surface hinge 44 extending forward and backward to form the right first side wall portion 24. The posture can be changed between a posture orthogonal to the two wall portions 28 (FIG. 5) and a posture overlapping the inner surface of the right second wall portion 28 (FIG. 8). The top surface first wall portion 24 is composed of the sheet material 36 having flexibility and two (plural) sheets of the sheet material 36 arranged side by side in the left-right direction (the direction facing the second wall portions 26 and 28). Top surface reinforcing plates 38 are provided (see FIG. 14), and are reinforced by a top surface reinforcing plate 38 that is disposed entirely different from the bottom first wall portion 22. The top surface first wall portion 24 is configured to be bent between the adjacent top surface reinforcing plates 38, 38 in addition to the top surface hinge 44 on the right side (see a two-dot chain line in FIG. 8). The top surface first wall portion 24 is bent at a bending position biased to the left side, away from the top surface hinge 44, with the right side top surface reinforcing plate 38 set wider than the left side top surface reinforcing plate 38.

  As shown in FIG. 14, the top hinge 44 is in a state where the right end edge of the sheet material 36 forming the top first wall portion 24 and the upper end edge of the sheet material 36 forming the right second wall portion 28 are separated from each other. It is composed of a strip-shaped material connected by a The band-shaped material forming the top hinge 44 is a flexible band-shaped fabric, and is sewn to the band-shaped material in a state where the top surface first wall portion 24 and the right second wall portion 28 are separated from each other. Have been. The top surface hinge 44 provided across the front and back of the box-like body is such that the band-shaped material is bent between the top surface first wall portion 24 and the right second wall portion 28, and the top surface hinge 44 is provided on the right second wall portion 28. The posture displacement of the top wall first wall portion 24 is allowed.

  As shown in FIGS. 1 to 5, the second wall portions 26 and 28 constitute a vertical surface of the box-shaped body, and are arranged so as to face the side frame 14 of the carrier 10. The second wall portions 26 and 28 have the flexible sheet member 36 as a main body, and a vertical reinforcing plate 40 (FIGS. 5 and 6) is disposed below the sheet member 36. Is set to be heavy. The second wall portions 26 and 28 are set in accordance with the bending position of the top surface first wall portion 24 in a position where the upper edge of the vertical reinforcing plate 40 overlaps the inner surface of the second wall portions 26 and 28. As shown in FIG. 13, both the second wall portions 26 and 28 can be bent together with the first wall portions 22 and 24 overlapped on the basis of the upper edge of the vertical reinforcing plate 40.

  As shown in FIGS. 5 and 6, the third wall portions 30 and 32 function as doors that cover the entrances and exits of the box-shaped body. It is basically composed of a flexible sheet material 36 having a flexible shape. The left and right sides and the lower side of each of the front and rear third wall portions 30 and 32 are configured to be detachable from the bottom first wall portion 22 and the left and right second wall portions 26 and 28. The left and right sides of the third wall portions 30 and 32 can be attached to and detached from the edges of the left and right second wall portions 26 and 28 by a second line fastener 56 as attachment / detachment means. The lower side is detachable from the first surface fastener 46 of the bottom first wall portion 22 by the third surface fastener 50 as a means. The left and right sides of the third wall portions 30 and 32 are separated from the second wall portions 26 and 28 by the second line fasteners 56, and the third wall fasteners 50 on the lower side are removed to deform themselves and move upward. It can be rolled up (see FIG. 6). The third wall portions 30 and 32 are attached to the second wall portions 26 and 28 with the second line fasteners 56 on the left and right sides, and are attached to the bottom first wall portion 22 with the third surface fastener 50 on the lower side. The box-shaped body can be held with the front and rear vertical surfaces configured. Further, the third wall portions 30 and 32 are configured to be bendable with respect to the second wall portions 26 and 28 with the left and right sides connected to the second wall portions 26 and 28 by the second line fastener 56 as fulcrums ( 9 to 11). In addition, the second line fastener 56 moves the slider from the bottom to the top to separate the elements, the third wall portions 30 and 32 are separated from the second wall portions 26 and 28, and the slider is moved from the top to the bottom. The third wall portions 30 and 32 and the second wall portions 26 and 28 are set so that the elements mesh with each other.

  As shown in FIGS. 1 and 5, the cover 20 has a fixed belt 58 that connects the upper portions of the third wall portions 30 and 32 and the upper portions of the second wall portions 26 and 28 to the third wall portions 30 and 32. The second wall portions 26 and 28 are provided so as to straddle a detachable side. The fixing belt 58 can be made of, for example, a flexible band-like fabric, and is fixed to the third wall portions 30 and 32 and the second wall portions 26 and 28 by sewing. The fixing belt 58 is disposed so as to cross the path of the slider in the second line fastener 56 connecting the third wall sections 30 and 32 and the second wall sections 26 and 28 or an extension of the path, and the second line fastener 56 At the end in the opening direction.

  As shown in FIGS. 9 to 11, each of the third wall portions 30 and 32 is configured to be bendable by a folding portion 60 provided on the third wall portions 30 and 32. Then, the cover 20 is formed by bending both the third wall portions 30 and 32 at the folding portion 60 so that the second wall portions 26 and 28 forming the facing surfaces of the cylindrical body are relatively close to each other. The body can be folded. The folded portion 60 is provided over the third wall portions 30 and 32 and is, for example, a portion that is formed by a sewing line or the like and serves as a reference at the time of bending or a portion that has a habit. The folded portion 60 is provided on each of the third wall portions 30 and 32 so as to extend in parallel with the left and right sides connected to the second wall portions 26 and 28, and is provided with one streak. It is designed to be folded and folded toward the inside of the tubular body. One of the third wall portions 30 has the folded portion 60 disposed at a position separated from or closer to the front and rear widths of the second wall portions 26 and 28 from the left side, and the other third wall portion 32 has the second The folded portion 60 is arranged at a position farther than the position where the front and rear widths of the wall portions 26 and 28 are separated (FIG. 11). Here, the folded portion 60 of the other third wall portion 32 is set to be about the plate thickness of the folded one third wall portion 30 and farther from the left side than the folded portion 60 of the one third wall portion 30. In the third wall portions 30 and 32 to be folded, the folded portions 60 and 60 are arranged at positions shifted from each other.

  As shown in FIG. 4, each of the second wall portions 26 and 28 is provided with a mounting means 34 configured to be detachable from the side frame 14 of the carrier 10, and the mounting means 34 is attached to the side frame 14. And the second wall portions 26 and 28 are fixed to the carrier 10. The attaching means 34 includes a wrapping surface fastener 34a provided on a flexible belt-shaped belt, and a fixing surface fastener 34b provided at the base of the belt-shaped belt sewn and fixed to the second wall portions 26 and 28. It is composed of The cover 20 is separated from the upper part of the second wall parts 26, 28 by the front and rear, and two upper mounting means 34, 34 provided so that the winding surface fastener 34a extends upward, and the second wall part. Each of the front and rear sides of the front and rear sides 26 and 28 has a side mounting means 34 provided at a middle part in the vertical direction so that a winding surface fastener 34a extends forward or backward. The cover 20 is formed by attaching the wrapping surface fastener 34a of the upper mounting means 34 wrapped around the horizontal rail of the side frame 14 to the corresponding fixed surface fastener 34b, and wrapping the wrapping surface fastener 34b around the vertical rail of the side frame 14. Is attached to the corresponding fixed surface fastener 34b and attached to the carrier 10. The side attachment means 34 is disposed above the upper edge of the vertical reinforcing plate 40 of the second wall portions 26, 28, and in the embodiment, the upper edge of the vertical reinforcing plate 40 of the second wall portions 26, 28. The cover 20 in the folded state can be bent along the upper edge of the vertical reinforcing plate 40 in a state where the cover 20 is fixed to the side frame 14 by the side mounting means 34 disposed close to the side (FIG. 13A).

  As shown in FIG. 4, the cover 20 is configured to be detachably mounted on one side of the second wall section 26 and to the other of the second wall section 28, and to hold the folded state of the folded body. Is provided. The holding means 62 is provided on the left second wall portion 26 and is provided with an installation surface fastener 62a disposed on a flexible belt-like belt, and a fastening surface fastener 62b provided on the right second wall portion 28. It is composed of The cover 20 includes upper holding means 62 provided at the upper center of the second wall portions 26 and 28 so that the erection surface fastener 62a extends upward, and front and rear edges of the second wall portions 26 and 28. In each of the intermediate portions in the vertical direction, there is provided a side holding means 62 provided so that the erection surface fastener 62a extends forward or backward. The cover 20 holds the upper holding means 62 in the folded state with the upper and lower first walls 22, 24 and the folded third walls 30, 32 between the left and right second walls 26, 28. The folded state can be held by attaching the fastener 62a to the corresponding fastening surface fastener 62b and attaching the mounting surface fastener 62a of the side holding means 62 to the corresponding fastening surface fastener 62b (FIG. 10). . The side holding means 62 is disposed at a position overlapping the upper portion of the vertical reinforcing plate 40 of the second wall portions 26, 28. In the embodiment, the side holding means 62 folds the lower portion of the second wall portions 26, 28 so as to overlap the upper portion. At this time, the lower portion can be held so as not to come apart (FIG. 13B).

[Operation of the embodiment]
Next, the operation of the transport vehicle cover 20 according to the embodiment will be described. When the cover 20 in the box-like body is folded into a folded body, first, the bottom first wall portion 22 is pivoted upward about the bottom hinge 42 on the right side as a fulcrum, and the inner surface of the right second wall portion 28 is rotated. It is superimposed along (see FIG. 7). At this time, the second surface fastener 48 of the bottom first wall portion 22 and the fourth surface fastener 52 provided on the inner surface of the right second wall portion 28 are bonded to each other, so that the first bottom wall portion 22 is formed in the second direction. It can be held in an upright position along the wall 28. In addition, since the bottom first wall portion 22 is basically composed of the sheet material 36 and is relatively light, the work of folding the bottom first wall portion 22 can be easily performed.

  Next, the top surface first wall portion 24 is separated from the left second wall portion 26 and the front and rear third wall portions 30 and 32 with the first line fastener 54, and the top surface hinge 44 on the right side is used as a fulcrum to move downward. It is rotated to overlap the inside of the first folded bottom wall portion 22 and to follow the inner surface of the right second wall portion 28 (see FIG. 8). Since the top surface first wall portion 24 is relatively heavy because the top surface reinforcing plate 38 is disposed on the sheet material 36, the top surface first wall portion 24 can be held in a posture hanging down along the second wall portion 28 by its own weight. The top first wall portion 24 has good strength when the box-shaped body is formed by the top reinforcing plate 38, but can be bent between adjacent top reinforcing plates 38. Has become. Thereby, when folding the top surface first wall portion 24 or returning it from the folded state to the box-like body, the top surface first wall portion 24 itself is folded to avoid interference with the right second wall portion 28. The folding work of the top surface first wall portion 24 can be easily performed.

  After folding the first wall portions 22 and 24 so as to overlap the inside of the right second wall portion 28 to form a cylindrical body, the third wall portions 30 and 32 are folded with the folding portion 60 as a reference. 60 is folded so as to form a valley fold (see FIG. 9). As described above, since the third wall portions 30 and 32 are provided with the fold portions 60 that serve as a reference when bending, the third wall portions 30 and 32 are guided to have a predetermined folded shape, The work of folding the third wall portions 30 and 32 can be easily performed. Further, since the third wall portions 30 and 32 can be neatly folded, the folded cover 20 can be compactly assembled. Here, since the third wall portions 30 and 32 are folded toward the inside of the cylindrical body, the bent third wall portions 30 and 32 are overlapped on the second wall portions 26 and 28, and the second wall portions 26 and 28 are overlapped. 28, so that the folded cover 20 can be more compactly assembled. In addition, the folded portions 60 of the third wall portions 30 and 32 are formed at positions shifted from each other in consideration of the thickness of the other party when folded, so that the folded portions 60 can be easily fit between the other party when folded. be able to. Therefore, the third wall portions 30, 32 can be folded more neatly without applying excessive force when bending the third wall portions 30, 32.

  By bending both the third wall portions 30 and 32 at the folding portions 60 and 60, the tubular body is folded such that the second wall portions 26 and 28 are close to each other (see FIG. 10). As a result, the first wall portions 22 and 24 and the bent third wall portions 30 and 32 are overlapped between the second wall portions 26 and 28 to form a flat folded body, and the left second wall portion is formed. By attaching the mounting surface fastener 62a of the holding means 62 provided on the portion 26 to the fastening surface fastener 62b provided on the right second wall portion 28, the folded state can be maintained by the holding means 62. Then, the cover 20 in the folded body can be folded along a line intersecting with the folded portion 60 of the third wall portions 30 and 32 (see FIG. 13). As described above, the first bottom wall portion 22 and the third wall portions 30 and 32 are made of a flexible sheet material 36, and the second wall portions 26 and 28 are located above the vertical reinforcing plate 40. The sheet material 36 can be bent. Then, since the top wall first wall portion 24 overlaps the position where the bent portion between the adjacent top surface reinforcing plates 38 and 38 deviates from the vertical reinforcing plate 40, the cover 20 in the folded body is folded at the bent position. Can be folded. Thus, the cover 20 in the folded state can be made more compact.

  When returning the folded cover 20 to the box-like body, the above-described procedure may be performed in reverse. The cover 20 can be changed from a box-shaped body to a folded body and from a folded body to a box-shaped body while being attached to the side frame 14 by the attachment means 34 of the left second wall portion 26, for example. it can.

  According to the cover 20, the first wall portions 22, 24 are formed by folding the first wall portions 22, 24 to form a cylindrical body and bending the third wall portions 30, 32 at the folding portion 60. Can be easily folded along the second wall 28. That is, since the cover 20 has a structure in which the first wall portions 22 and 24 are folded to form a tubular body and then folded, the gusset folding or the like is complicated as in the case of folding a bag whose opening is closed. There is no need to fold. Therefore, the cover 20 can be easily folded in a folded state in which the first wall portions 22, 24 and the third wall portions 30, 32 are disposed between the second wall portions 26, 28 without going through a complicated process. Can be changed. In addition, since the cover 20 has a configuration in which the first wall portions 22 and 24 are folded to form a tubular body and then folded, the number of folds can be reduced. According to the cover 20 of the embodiment, a configuration is employed in which the joint is formed between the wall portions 22, 24, 26, 28, 30, 32 and the single folded portion 60 provided on each of the third wall portions 30, 32. In addition, the deterioration and damage of the fold due to the repeated folding can be suppressed, and the durability of the cover 20 can be improved. Further, the cover 20 may have a reduced strength of the third wall portions 30 and 32 at the folded portion 60 that is easily bent, but the number of the folded portions 60 can be reduced, so that the reduction in strength is minimized. be able to.

  The cover 20 has a configuration in which the second wall portions 26 and 28 that form a vertical surface in the box-shaped body have a flexible sheet member 36 as a main body, and a vertical reinforcing plate 40 is disposed below the sheet member 36. Therefore, the posture of the second wall portions 26 and 28 can be held by the weight of the vertical reinforcing plate 40 so as not to be turned up. Moreover, the edge of the vertical reinforcing plate 40 can be used as a reference when the second wall portions 26 and 28 are bent.

  The cover 20 is provided with a fixed belt 58 that connects the upper portions of the third wall portions 30 and 32 and the upper portions of the second wall portions 26 and 28 so as to straddle the removable sides of the third wall portions 30 and 32. is there. The cover 20 is configured such that the top surface first wall portion 24 can be separated from the third wall portions 30 and 32, but the third wall portions 30 and 32 and the second wall portions 26 and 28 are fixed by the fixing belt 58. Can be prevented from being completely separated. Moreover, since the fixed belt 58 extends to the end of the second line fastener 56 in the opening direction, it can also function as a stopper for restricting the movement of the slider of the second line fastener 56.

  The right side of the top surface first wall portion 24 can be set in a state where the edge of the sheet material 36 forming the top surface first wall portion 24 and the edge of the sheet material 36 forming the second wall portion 28 are separated from each other. A flexible top hinge 44 is connected to the second wall 28. Thereby, interference between the top surface first wall portion 24 and the right second wall portion 28 can be prevented, and the top surface first wall portion 24 can be easily folded. Further, the folded top surface first wall portion 24 can be brought closer to the inner surface of the right second wall portion 28, and the folded cover 20 can be made more compact.

(Modification example)
The present invention is not limited to the configuration described above, and can be modified as follows, for example.
(1) The sheet material forming the wall is not limited to the configuration of the embodiment, and can be appropriately selected according to the articles to be stored and the purpose.
(2) In the embodiment, the third wall portions on both front and rear sides are configured to be openable and closable. However, the present invention is not limited thereto, and only one of the front and rear third wall portions may be configured to be openable and closable.
(3) The direction of the wall portion is not limited to the configuration of the embodiment, but may be a configuration in which the first wall portion is set forward and backward, and the first wall portion is opened and closed, and articles are taken in and out.
(4) The folded portion of the third wall portion is not limited to the configuration in which only one line is provided as in the embodiment, but may be provided at a plurality of positions parallel to each other according to the width of the third wall portion. In the case where a plurality of folded portions are provided, it is convenient to arrange the odd numbers in order to fold the third wall portion within the width of the second wall portion.
(5) In the embodiment, the holding means and the attaching means are separately provided, but a part or all of the attaching means may be shared as the holding means.
(6) As the means exemplified by the hook-and-loop fastener and the line fastener, other configurations such as a configuration in which a string is tied through a hole, for example, can be adopted as long as the configuration is removable from the object.

10 transport trolley, 14 side frame (frame), 22 bottom first wall (first wall),
24 Top wall first wall (first wall), 26 (left) second wall, 28 (right) second wall,
30 (front) third wall, 32 (rear) third wall, 36 sheet material,
38 top reinforcement plate, 40 vertical reinforcement plate, 44 top hinge, 58 fixing belt,
62 holding means

Claims (9)

At least one of the six surfaces is opened and closed to provide a box-like body capable of taking in and out of articles, comprising six wall portions,
Each of a pair of first wall portions forming opposing surfaces of the box-shaped body is separable from a second wall portion and both third wall portions each having three sides forming another surface, and the remaining one side is used as a fulcrum. It is possible to bend the inside of the box-shaped body so as to be along the second wall portion where the one side is continuous, and it is possible to form a cylindrical body having an open surface facing the box-shaped body,
Each of the pair of third wall portions forming the facing surfaces of the box-shaped body is configured to be foldable by a fold portion provided on the third wall portion, and the third wall portion is bent by the fold portion. A cover for the transport vehicle, wherein the tubular body is foldable so that the second wall portions forming the surfaces facing the tubular body are relatively close to each other.   2. The transport cart cover according to claim 1, wherein the third wall portion is configured to be bent at the folding portion and folded toward the inside of the tubular body. 3.   The transporting vehicle cover according to claim 1 or 2, wherein the folded portions of the third wall portions disposed opposite to each other are provided at positions shifted from each other.   The said 2nd wall part which makes the vertical surface in the said box-shaped body was made into the main body the sheet material which has flexibility, The vertical reinforcement plate was arrange | positioned at the lower part of this sheet material. 4. The transport vehicle cover according to the paragraph.   The first wall forming the top surface of the box-shaped body includes a flexible sheet material, and a plurality of top surface reinforcing plates arranged on the sheet material in a direction facing the second wall portion. The transport vehicle cover according to any one of claims 1 to 4, wherein the first wall portion is configured to be bendable between adjacent top surface reinforcing plates.   At least one of the third wall portions, which form a vertical surface in the box-like body, is configured to be detachable from the first wall portion and both second wall portions, three sides of which form the bottom surface of the box-like body. The fixing belt according to any one of claims 1 to 5, wherein a fixing belt that connects an upper portion of the third wall portion and an upper portion of the second wall portion is provided so as to straddle a detachable side of the third wall portion. Cover for transport trolley.   The one side of the first wall portion is a hinge having flexibility in a state where the edge of the sheet material forming the first wall portion and the edge of the sheet material forming the second wall portion are separated from each other. The transporting vehicle cover according to any one of claims 1 to 6, wherein the transporting vehicle cover is configured to be connected to the second wall portion.   A folded body obtained by overlapping the first wall portion and the bent third wall portion with each other between the second wall portions and folding the cylindrical body into a line intersecting the folded portion of the third wall portion is formed. The transporting vehicle cover according to any one of claims 1 to 7, wherein the transporting vehicle cover is configured to be capable of being bent along.   The second wall portion is configured to be detachable from one of the second wall portions to the other of the second wall portion, and the first wall portion and the bent portion are provided between the second wall portions. The transporting vehicle cover according to any one of claims 1 to 8, further comprising holding means for holding a folded state in which the third wall portion is overlapped.

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