Wagon for carrying storage bag for use in linen article cleaning

Abstract

To provide a wagon for carrying an article storage bag that improves work efficiency while securing safety of a worker handling the wagon and reducing a physical burden on the worker, and that allows a large number of wagons to be stored in a narrow space by being folded when stored.SOLUTION: This wagon includes a foldable bottom-plate equivalent portion 100 which is composed of first and second bottom-plate-constituting half portions and in which edge portions on one side in a longitudinal direction of the bottom-plate-constituting half portions are connected to each other by a hinge, first and second side-plate equivalent portions 200 which are erected from edge portions of the bottom-plate-constituting half portions, first and second foldable side-connection portions 300 which are capable of narrowing an interval between the side-plate equivalent portions provided on both end sides of the two side-plate equivalent portions in a width direction, and an elastic hanging member 500 which has substantially the same structure as the foldable bottom-plate equivalent portion but has an overall size such that, in a use state of the wagon for carrying the article storage bag, the foldable bottom-plate equivalent portion is disposed inside the wagon to allow the foldable bottom-plate equivalent portion to vertically move inside the wagon.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] To provide a wagon for transporting goods storage bags, which can store a large number of goods in the goods storage bags at once and transport them, and then, after the goods are taken out of the transport storage bag, can remove the goods storage bag, fold it, and store it without taking up storage space. [Background technology]

[0002] A wagon is known that can store a large number of items in an item storage bag at once for transport, and then, after the items are removed from the transport storage bag, can be removed and folded up for storage without taking up storage space.

[0003] Examples of common items include linen products such as sheets, towels, and pillowcases used in hotels, inns, and other accommodation facilities, hospitals, beauty salons, full-body massage parlors, hot yoga, and other beauty facilities.

[0004] After using these linens once, they are put into a storage bag, which is then collected by a linen cleaning company and transported to a cleaning factory.The linen cleaning factory then cleans them all at once in a short period of time.After cleaning, the linens are transported back to the original collection point, such as a lodging facility, hospital, or beauty facility, in a clean state by truck or other means of transportation within a set date and time.

[0005] Also, as an example of a wagon for transporting supply storage bags, the following linen wagon is known (see, for example, Patent Document 1): This linen wagon comprises a wheel mounting plate, wheels attached to the wheel mounting plate, a pair of left and right side frames erected vertically from the wheel mounting plate, a bottom frame disposed near the lower ends of the side frames, and a flexible arm member connecting the left and right side frames.

[0006] The bottom frame of this linen cart has hinges at the center and where it connects to the side frames, and is bendable at the center, so that the width of the linen cart can be reduced by folding the bottom frame when stored, thereby making it possible to minimize the storage space when not in use. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-130932 Summary of the Invention [Problem to be solved by the invention]

[0008] The equipment transport cart described in the above-mentioned patent document is advantageous in that it can store a sufficient amount of linen in the linen storage bag when in use, and can be folded up and stored in a small space when not in use (storage). However, the following problems are raised.

[0009] Specifically, when workers at a linen cleaning factory remove linen items from a storage bag before cleaning, they remove large quantities of linen items from the storage bag (hereinafter referred to simply as "storage bag" for convenience), and as the linen items are removed, they end up being stored deep inside the storage bag near the bottom of the bag.

[0010] When removing linens near the bottom, the worker must stretch their hands deep into the storage bag while assuming an awkward position, in order to remove the linens stored near the bottom of the bag.

[0011] This means that each time linen stored near the bottom of the bag is taken out, the worker must take out the linen in an awkward position. Repeatedly removing linen from the bottom of the storage bag and then putting it into the linen cleaning equipment's feed slot increases the physical burden on the worker, causing fatigue, and also straining the worker's hands and back due to the awkward position, which is currently a problem.

[0012] Furthermore, after using the above-mentioned linen storage bag transport cart, a large number of linen storage bag transport carts are folded up in a designated storage space that is as small as possible, and then stored, and when necessary, they are transported out of the storage space again and unfolded before being used.

[0013] However, since cleaning of linens naturally needs to be done frequently, the folded linen storage bag transport cart must be pulled out from the cart storage room, unfolded, and returned to a form in which the linen storage bag transport cart can be stored. In this case, if the cart has the configuration described in the above-mentioned patent document, the two frames in the center of the bottom plate, which are open at the top when folded, close together completely when the cart is returned to its original form.

[0014] The problem here is that when a worker using the cart tries to forcefully push open a folded linen storage bag transport cart that is being folded due to time constraints, they may accidentally get their palms or fingertips caught in the space formed between the frames, which could then tightly close the space during the process of unfolding the cart, resulting in unexpected injury or an accident.

[0015] The process of transporting uncleaned linens to a linen cleaning factory in a linen storage cart and then delivering them back is based on the inevitable requirement that, given the circumstances of accommodation facilities and hospitals, the cleaning work must always be completed within a limited time and the clean linens must be delivered on time.Under these conditions, the time schedule is naturally quite tight, and accidents like the one mentioned above occur frequently due to the haste of unfolding the linen storage cart when using it.

[0016] The object of the present invention is to solve the above-mentioned problems and provide a supply storage bag transport cart that ensures the safety of workers who handle the supply storage bag transport cart, significantly reduces the burden on the body, improves work efficiency, and can be folded when not in use so that many supply storage bag transport carts can be stored in a small space. [Means for solving the problem]

[0017] In order to solve the above problems, the wagon for transporting goods storage bags according to claim 1 of the present invention has a box-like shape that forms a wagon opening with an open top when in use, and is provided with casters for moving the wagon at predetermined positions on the bottom, and is used to transport goods storage bags and a large number of goods stored therein, The wagon for transporting goods storage bags has a foldable bottom plate equivalent portion in which a first bottom plate half portion and a second bottom plate half portion having the same elongated rectangular shape are joined by a hinge at one longitudinal edge portion of each of the bottom plate half portions; a first side panel portion and a second side panel portion respectively rising from the edges of the opposite bottom plate half portions parallel to each other in the longitudinal direction and connected by the hinges of the first and second bottom plate half portions, and the upper edges of the first and second side panel portion form opposing edges of the wagon opening; At both widthwise ends of these two opposing side panel equivalents, there are provided a first foldable side connecting portion and a second foldable side connecting portion that are expandable and contractible in the width direction and that enable the spacing between the first side panel equivalent and the second side panel equivalent to be narrower than the spacing in the use state, The first and second bottom plate half portions are folded via hinges provided on the respective bottom plate half portions so as to form a mountain shape when viewed from the longitudinal side, and the first and second foldable side connecting portions are compressed in the width direction, thereby enabling the box-shaped supply bag transport cart to be folded when in use and stored in a narrow space when not in use, Furthermore, a bottom support plate equivalent for a supplies storage bag has substantially the same structure as the folding bottom plate equivalent, which is made up of the first bottom plate half and the second bottom plate half, inside the supplies storage bag transport wagon, but has an overall size that allows it to be accommodated inside the supplies storage bag transport wagon in a state where it is facing the folding bottom plate equivalent when the supplies storage bag transport wagon is in use, and is large enough to support and hold the bottom of the supplies storage bag when the supplies storage bag is stored in the wagon with a predetermined location of the bag opening of the storage bag engaged with a predetermined location of the wagon opening. an elastic suspension member having a certain elastic force, both ends of which are connected between a predetermined position of the part corresponding to the bottom support plate of the goods storage bag and a predetermined position of the wagon opening of the goods storage bag transport wagon, so as to enable the part corresponding to the bottom support plate of the goods storage bag to move up and down inside the wagon while maintaining the part corresponding to the bottom support plate of the goods storage bag facing and substantially parallel to the part corresponding to the folded bottom plate when the wagon is in use; and a supply storage bag opening edge engaging portion provided at the wagon opening, which allows the supply storage bag to be put in and taken out from the wagon opening, and which allows the supply storage bag to be stored inside in a state in which the bag opening of the supply storage bag is expanded over the entire wagon opening via an engaging portion provided at the bag opening of the supply storage bag, When the goods storage bag transport wagon is folded when not in use, the folding bottom plate equivalent portion is folded to form a mountain shape when viewed from the side, and at the same time, the goods storage bag bottom support plate equivalent portion is also folded to form a mountain shape when viewed from the side, The elastic force of the elastic hanging member is suitable for causing the bottom support plate equivalent portion of the supplies storage bag to descend toward the folding bottom plate equivalent portion of the supplies storage bag transport wagon as the amount of supplies stored in the supplies storage bag attached to the supplies storage bag transport wagon increases each time supplies are placed into the supplies storage bag attached to the supplies storage bag transport wagon while it is in use, and for causing the bottom support plate equivalent portion of the supplies storage bag to rise toward the wagon opening of the supplies storage bag transport wagon as the amount of supplies remaining in the supplies storage bag decreases each time supplies are removed from the supplies storage bag.

[0018] The wagon for carrying an article storage bag according to claim 2 of the present invention is the wagon for carrying an article storage bag according to claim 1, The first and second bottom plate halves of the folding bottom plate equivalent are each formed in an elongated rectangular shape, and the hinged connection between the two is made of a rod-shaped or pipe-shaped member having a rectangular cross section, and the hinges are flush with each other with the lower sides of the rod-shaped or pipe-shaped members as the center of rotation to form the folding bottom plate equivalent, and when the goods storage bag transport cart is not in use, the first and second bottom plate halves are bent in a mountain shape, creating a gap in the entire longitudinal direction of the upper parts of the rod-shaped or pipe-shaped members connected by the hinges, and the upper parts of the rod-shaped or pipe-shaped members are provided with a space-blocking cover that completely blocks the gap created by the mountain-shaped bending state, The first bag bottom support plate equivalent and the second bag bottom support plate equivalent of the goods storage bag bottom support plate equivalent each have an elongated rectangular frame-like shape, and the hinged portion between the two consists of a rod-shaped or pipe-shaped member with a rectangular cross section, and the hinges are flush with each other with the lower side of the rod-shaped or pipe-shaped member as the center of rotation to form the goods storage bag bottom support plate equivalent, and when the goods storage bag transport cart is not in use, the first bag bottom support plate equivalent and the second bag bottom support plate equivalent can be folded in a mountain shape, creating a gap along the entire longitudinal direction in the upper parts of the rod-shaped or pipe-shaped members connected by the hinges, and the upper parts of the rod-shaped or pipe-shaped members are provided with a space-blocking cover that blocks all of the gap created by the mountain-shaped folding state.

[0019] The wagon for carrying an article storage bag according to claim 3 of the present invention is the wagon for carrying an article storage bag according to claim 1, The elastic hanging member is made of a tension coil spring, and the tension coil spring itself is covered by a coil spring cover to prevent the supply storage bag from being caught and damaged in the small gap created by the expansion and contraction of the coil spring when the bottom support plate equivalent part of the supply storage bag rises and falls inside the supply storage bag transport cart when putting supplies in and out of the supply storage bag, or to prevent part of the net of the supply storage bag, which is made entirely of a net-shaped bag body, from being caught or caught and damaged.

[0020] The wagon for carrying an article storage bag according to claim 4 of the present invention is the wagon for carrying an article storage bag according to claim 1, The engaging portions of the elastic hanging members provided near the upper opening of the wagon for transporting the goods storage bag and the common engaging portion for hooking the opening edge portion of the goods storage bag onto the upper opening of the wagon for transporting the goods storage bag are provided at predetermined positions near the upper opening of the wagon for transporting the goods storage bag, The common connecting portion corresponding to the first foldable side connecting portion of the supply storage bag transport wagon is characterized in that both ends of the first connecting chain can be engaged with the first connecting chain when the first connecting chain is pulled, and the common connecting portion corresponding to the second foldable side connecting portion is characterized in that both ends of the second connecting chain can be engaged with the second connecting chain when the second connecting chain is pulled.

[0021] The wagon for carrying an article storage bag according to claim 5 of the present invention is the wagon for carrying an article storage bag according to claim 1, The cart moving casters provided at both ends of the width direction of the bottom support plate equivalent of the goods storage bag on one side in the direction of folding when the goods storage bag transport cart is not in use are each rotatably attached to the bottom support plate equivalent of the goods storage bag, and the cart moving casters provided at both ends of the width direction of the bottom support plate equivalent of the goods storage bag on the other side are each attached to the folding bottom plate equivalent so as to limit the direction of travel of those casters to a certain direction.

[0022] The wagon for carrying an article storage bag according to claim 6 of the present invention is the wagon for carrying an article storage bag according to claim 1, The goods storage bag attached to the goods storage bag transport cart consists of an outer bag which is replaced less frequently and an inner bag which is replaced more frequently and is cleaned after each replacement, and the inner bag can be attached in a state where it is completely overlapped along the inner surface of the inner side of the outer bag, and is characterized in that engaging hooks which detachably engage with engaging portions provided at each of the four upper corners of the goods storage bag transport cart are provided at predetermined positions on the opening of the outer bag.

[0023] The wagon for carrying an article storage bag according to claim 7 of the present invention is the wagon for carrying an article storage bag according to claim 1, The goods storage bag is made of a mesh net bag, and each of the upper openings of the mesh net bag is provided with engaging hooks that can be detachably engaged with engaging portions attached at positions that can engage with engaging portions provided at the four upper corners of the goods storage bag transport cart. [Effects of the Invention]

[0024] According to the present invention, it is possible to provide a wagon for transporting goods storage bags that ensures the safety of workers who handle the wagon, significantly reduces the burden on the body, improves work efficiency, and allows many wagons for transporting goods storage bags to be stored in a small space by folding them up when not in use. [Brief explanation of the drawings]

[0025] [Figure 1] 1 is a perspective view showing the basic configuration of a wagon for transporting linen storage bags according to the present invention. [Figure 2] 1 is a plan view showing the basic configuration of a wagon for transporting linen storage bags according to the present invention. [Figure 3] 1, showing a state in which the bottom pressing portion of the linen storage bag according to the present invention is in a raised position within the wagon. [Figure 4] 1, showing the bottom pressing portion of the linen storage bag according to the present invention in a lowered position within the wagon. [Figure 5] 1 is a perspective view showing the state in which the linen storage bag transport cart according to the present invention is folded and can be stored. FIG. [Figure 6] 6 is an end view corresponding to FIG. 5, showing the linen storage bag transport cart according to the present invention in a folded state for storage. FIG. [Figure 7] 7(a) and 7(b) are a plan view and a perspective view, respectively, showing a bottom support portion for a linen storage bag provided at the bottom of a wagon according to the present invention. [Figure 8]8(a) and 8(b) are a plan view and a perspective view, respectively, showing a bottom pressing portion of a linen storage bag that can be raised and lowered within a wagon according to the present invention. [Figure 9] This is an enlarged oblique view showing a common engagement portion that can engage both the chain that connects the opposing upper parts on both sides of the chain of the wagon of the present invention and the tension coil spring that allows the bottom pressing portion of the linen storage bag to be raised and lowered within the wagon. [Figure 10] This is an oblique view showing a linen storage bag made of sturdy fabric or the like attached to the cart of the present invention, and a small amount of pre-cleaning linen has been collected during the initial process of collecting the linen. [Figure 11] This is a perspective view showing linen items made of sturdy fabric or the like attached to the cart of the present invention, with the pre-cleaning linen items collected halfway through the process of collecting the pre-cleaning linen items. [Figure 12] This is an oblique view showing the state in which a linen storage bag made of sturdy fabric or the like is attached to the cart of the present invention and as much pre-cleaning linen as possible is collected during the pre-cleaning linen collection process. [Figure 13] This is an end view, partially transparent, showing a linen storage bag made of sturdy fabric or the like attached to a cart according to the present invention, with cleaned and folded linen items stored in a dry cleaning factory until the bottom clamping portion of the linen storage bag is positioned at a lower height. [Figure 14] This is a view corresponding to Figure 13, showing the state in which about one-third of the cleaned linen items have been removed from the top of the cart and transferred from the state in Figure 13, and is an end view partially transparently showing the state in which the bottom clamping portion of the linen storage bag has risen to about the middle height. [Figure 15] This is a view corresponding to Figure 14, showing the state in which the remaining one-third of the cleaned linen items have been removed from the top of the cart and transferred from the state in Figure 14, and is an end view partially transparently showing the state in which they have risen to nearly the height of the upper side of the bottom of the linen storage bag. [Figure 16]This is an oblique view showing a linen storage bag made of a sturdy net attached to the cart of the present invention, and a small amount of pre-cleaning linen has been collected during the first process of collecting the linen. [Figure 17] This is a perspective view showing linen items made of a sturdy net attached to the cart of the present invention, with the pre-cleaning linen items collected halfway through the process of collecting the pre-cleaning linen items. [Figure 18] This is an oblique view showing the state in which a linen storage bag made of a sturdy net is attached to the cart of the present invention and as much pre-cleaning linen as possible is collected during the pre-cleaning linen collection process. [Figure 19] This is a partially transparent end view showing a linen storage bag made of a sturdy net attached to a cart according to the present invention, with cleaned and folded linen stored in a dry cleaning factory until the bottom clamping portion of the linen storage bag is positioned at a lower height. [Figure 20] This is a view corresponding to Figure 19, showing the state in which about one-third of the cleaned linen items have been removed from the top of the cart and transferred from the state in Figure 19, and is an end view partially transparently showing the state in which the bottom clamping portion of the linen storage bag has risen to about the middle height. [Figure 21] This is a view corresponding to Figure 20, showing the state after the remaining one-third of the cleaned linen items have been removed from the top of the cart and transferred from the state shown in Figure 20, and is an end view partially transparently showing the state in which they have risen to nearly the height of the upper side of the bottom of the linen storage bag. DETAILED DESCRIPTION OF THE INVENTION

[0026] The following describes an embodiment of a cart for transporting goods storage bags according to the present invention with reference to the drawings. Note that the following embodiment is merely an exemplary form that demonstrates the effects of the present invention, and the present invention is not limited to the content of this embodiment. It goes without saying that various modifications are possible as appropriate within the scope that can demonstrate the effects of the present invention.

[0027] The following describes a cart for transporting supply storage bags according to one embodiment of the present invention. In the following text and drawings, the cart for transporting supply storage bags will be described as being used to transport used linens placed in linen storage bags, transported to a linen cleaning factory for cleaning, and then delivered to the supplier after cleaning. Therefore, "supplies" will be referred to as "linen products," and "cart for transporting supply storage bags" will be referred to as "cart for transporting linen storage bags." Similarly, "supply storage bags" will be referred to as "linen storage bags."

[0028] Furthermore, in the description of the embodiments below, the terms "front-to-back direction," "left-to-right direction," "up-down direction," "longitudinal direction," "width direction," and "height direction" will be explained based on the directions shown in the corresponding drawings.

[0029] A cart for transporting linen storage bags according to one embodiment of the present invention (hereinafter simply referred to as a "cart for transporting linen storage bags") will be described below with reference to the drawings. Fig. 1 is a perspective view showing the basic configuration of a cart for transporting linen storage bags according to the present invention. Fig. 2 is a plan view showing the basic configuration of a cart for transporting linen storage bags according to the present invention.

[0030] Fig. 3 is a perspective view corresponding to Fig. 1, showing a state in which the bottom pressing portion of the linen product storage bag according to the present invention is in a raised position within the cart. Fig. 4 is a perspective view corresponding to Fig. 1, showing a state in which the bottom pressing portion of the linen product storage bag according to the present invention is in a lowered position within the cart. Fig. 5 is a perspective view showing a state in which the cart for transporting linen product storage bags according to the present invention is folded and can be stored.

[0031] FIG. 6 is an end view corresponding to FIG. 5, showing the state in which the wagon for transporting linen storage bags according to the present invention is folded so as to be able to store it. FIG. 7 is a plan view (FIG. 7(a)) and a perspective view (FIG. 7(b)) showing a bottom support part for linen storage bags provided at the bottom of the wagon according to the present invention. FIG. 8 is a plan view (FIG. 8(a)) and a perspective view (FIG. 8(b)) showing a bottom pressing part for linen storage bags that can be raised and lowered inside the wagon according to the present invention.

[0032] Figure 9 is an enlarged perspective view of a common engagement portion that can engage both the chain that connects the opposing upper parts on both sides of the chain of the wagon of the present invention and the tension coil spring that allows the bottom pressing portion of the linen storage bag to be raised and lowered within the wagon.

[0033] The wagon 10 for transporting linen storage bags in this embodiment has a box-like shape that forms a wagon opening with an open top when in use, and is equipped with casters 101 to 104 for moving the wagon at predetermined positions on the bottom, and is used to transport the linen storage bag 15 and the numerous linens stored therein.

[0034] Here, linen products include all linen products that are used daily in accommodation facilities such as hotels and inns, hospitals, and other stores and facilities such as beauty salons, massage salons, and hot yoga studios, and that are transported in bulk to a linen cleaning factory after use, and then transported to the supplier after cleaning.

[0035] The wagon 10 for transporting linen storage bags has a first bottom plate half 110 and a second bottom plate half 120, each having the same elongated rectangular shape, and a foldable bottom plate equivalent part 100 formed by connecting one longitudinal edge of each bottom plate half 110, 120 with a hinge.

[0036] The folding bottom plate equivalent part 100 comprises a first bottom plate constituent half part 110, a second bag bottom plate constituent half part 120, and a hinge 150 that connects these bottom plate constituent halves 110, 120. The first bottom plate constituent half part 110 is formed by integrating a long and narrow rectangular outer frame part made of a square pipe with a square pipe that connects the opposing long sides of the outer frame part.

[0037] The second bag bottom plate half 120 has the same structure as the first bottom plate half 110. That is, the second bag bottom plate half 120 is composed of an elongated rectangular outer frame made of square pipes, and square pipes that connect the opposing long sides of the outer frame, which are integrated together. A caster mounting plate 130 for moving the wagon is provided along one of the long sides.

[0038] Both ends of the first bottom plate half 110 near the casters are rotatably connected to the corresponding caster mounting plates 130 for moving the wagon. Similarly, both ends of the second bottom plate half 120 near the casters are rotatably connected to the corresponding caster mounting plates 140 for moving the wagon (see FIGS. 1, 3 to 7, and 10 to 15).

[0039] As described above, the first bottom plate constituent half 110 and the second bag bottom plate constituent half 120 of the folding bottom plate equivalent part 100 each have an elongated rectangular shape, and the hinged portion between these two consists of a rod-shaped member or a pipe-shaped member with a rectangular cross section, and the hinges 150 (see Figures 1, 5, 6, 13 to 15, 19 to 21) rotate around the lower side of the rod-shaped member or pipe-shaped member, so that they are flush with each other and form the folding bottom plate equivalent part 100.

[0040] In addition, when the linen storage bag transport cart 10 is not in use, the first bottom plate half 110 and the second bottom plate half 120 are bent in a mountain shape, which creates a gap (see space S1 in Figure 6) in the upper parts of the rod-shaped or pipe-shaped members connected by the hinges 150 along their entire longitudinal direction, and the upper parts of the rod-shaped or pipe-shaped members are provided with a space-blocking cover 190 that blocks all of the gap created by this mountain-shaped bending state (see Figures 1, 3, 5, 6, etc.).

[0041] As described above, both ends of the outer frames of the wagon movement caster mounting plates 131, 132 (130) and the first bottom plate constituent half 110 (100) and second bag bottom plate constituent half 120 (100) are pivotally supported so as to be rotatable at a predetermined angle. In this embodiment, the first bottom plate constituent half 110 and the second bag bottom support constituent half 120 are connected by two hinges 150 at the lower part of the square pipe so that the side surfaces of the long sides opposite to the long side to which the wagon movement caster mounting plates 130 are attached abut against each other (see Figures 6, 13 to 15).

[0042] In addition, the two hinges 150 serve to rotate the first bottom plate component half 110 and the second bag bottom plate component half 120 so that they can be folded and foldable within the range of a horizontal state and a mountain-shaped state when viewed from the side.

[0043] In addition, a tension coil spring 180 having a certain length and capable of generating sufficient elastic tensile force is provided on the underside of the first bottom plate component half 110 and the second bag bottom plate material component half 120, i.e., the first bottom plate component half 110 and the second bag bottom plate material component half 120 (see Figures 6, 13 to 15).

[0044] More specifically, one end of this tension coil spring 180 is connected to a predetermined position on the underside of the first bottom plate component half 110, and the other end is connected to a predetermined position on the underside of the second bag bottom plate component half 120.

[0045] As described above, the hinge 150 is attached to the underside of the rod-shaped member or pipe-shaped member as a pivot point, so that when the wagon is in use, the space-closing cover 190 covering the gap space S1 formed between the first bottom plate constituent half 110 of the folded wagon 10 and the second bag bottom plate material constituent half 120 is pressed downward, for example with the foot or palm, to completely close it, so that the first bottom plate constituent half 110 and the second bag bottom plate material constituent half 120 are flush with each other to form the folded bottom plate equivalent part 100.

[0046] On the other hand, when the linen storage bag transport cart 10 is not in use, the first bottom plate component half 110 and the second bag bottom plate component half 120 are folded into a mountain shape with the hinge 150 as the rotation center (see Figures 5 and 6).

[0047] In other words, when the wagon 10 is folded, a gap S1 is created in the entire longitudinal direction of the upper portions of the rod-shaped or pipe-shaped members connected by the hinges 150. However, when the first bottom plate half 110 and the second bag bottom plate half 120, which are made of pipe-shaped members, are pressed downward simultaneously, this gap S1 disappears, and as a result, the folded bottom plate equivalent portion 100 is formed.

[0048] While the gap space S1 exists, the gap space S1 formed between the first bottom plate half 110 and the second bag bottom plate half 120 is completely covered from above by the space closing cover 190. Therefore, even if a user opens their palm and forcibly presses downward on this part to change the wagon 10 from the folded state to the usable state, the present invention has the important advantage of preventing the wagon user from accidentally getting part of their palm caught or their little finger, which has inadvertently slipped into the gap, from being caught and causing serious injury.

[0049] The fixing screw 491 shown in the drawing is for fixing the space blocking cover 490 to one of the bottom plate half portions (the first bottom plate half portion 110 in the drawing) so that the space blocking cover 190 reliably covers and closes the entire gap space as the wagon 10 changes from the folded state to the unfolded state. In this embodiment, when closing the gap space S1, the free end portion of the gap space blocking cover 490 on the opposite side to the fixing screw 491 side shifts (slides) sideways to close the gap space S1.

[0050] In addition, the linen storage bag transport cart 10 has a first side panel equivalent portion 210 and a second side panel equivalent portion 220 that rise from the edges of the opposite bottom plate component halves that are parallel to the longitudinal direction and connected by hinges 150 of the first and second bag bottom support component halves 110, 120, and their upper edges form opposing edges of the cart opening 11.

[0051] The following describes the specific configuration of the side plate equivalents 210, 220, which are arranged facing each other in an upright position across the bottom plate equivalent 100. The side plate equivalents 210, 220, which face each other and stand upright, are made of the same components, and are integrally configured with an outer frame upright part made of round pipes and having a horizontally long, inverted U-shape, and multiple inner upright parts that stand up in the same way as the outer frame upright part at predetermined intervals inside the outer frame upright part (see Figure 1).

[0052] As can be seen from FIG. 1, the lower ends of the two outer upright portions are firmly connected to one caster fixing plate 131 (130) and the other caster fixing plate 132 (130), respectively.

[0053] 1, each of the two outer upright portions has a chain 315 attached to one end thereof while hanging down slightly when the wagon is in use. Similarly, each of the two outer upright portions has a chain 325 attached to the other end thereof while hanging down slightly when the wagon is in use.

[0054] In addition, the linen storage bag transport cart 10 is equipped with a first foldable side connecting portion 310 and a second foldable side connecting portion 320 that are expandable in the width direction at both widthwise ends of the two opposing side panel equivalent portions 210, 220, allowing the distance between the first side panel equivalent portion 210 and the second side panel equivalent portion 220 to be narrower than the distance when in use (see Figures 1 to 6).

[0055] As described above, the first bottom plate component half 110 and the second bag bottom plate component half 120 are folded to form a mountain shape when viewed from their longitudinal side, and the first foldable side connecting portion 310 and the second foldable side connecting portion 320 are compressed in the width direction, thereby enabling the linen storage bag transport cart 10, which has a box-like shape when in use, to be folded and stored in a narrow space when not in use (see Figures 5 and 6).

[0056] The following describes the specific configurations of the first foldable side connector 310 and the second foldable side connector 320. Since the first foldable side connector 310 and the second foldable side connector 320 have the same configuration, only the configuration of the first foldable side connector 310 will be described.

[0057] In this embodiment, the first foldable side connection 310 is configured by four elongated link members (elongated metal plates) 311, 312, 313, 314 having sufficient thickness, excellent strength and durability, which are rotatably connected to each other to form a so-called pantograph-type telescopic link (see Figures 1 to 6).

[0058] For example, the ends of the upper and lower link members 311, 312 on the near side of the first folding side connector 310 shown in Fig. 1 are pivotally supported above and below the near side of the outer frame of the near side side panel equivalent 210 shown in Fig. 1. Furthermore, the ends of the upper and lower link members on the opposite side of the first folding side connector 310 are pivotally supported above and below the near side of the outer frame of the opposite side panel equivalent 220 (see Figs. 1 to 6).

[0059] Similarly, the second foldable side connecting section 320 has the same configuration as the first foldable side connecting section 310 as described above, and is rotatably supported on the upper and lower left sides of the outer frame section of the front side panel equivalent section 210, and is rotatably supported on the upper and lower left sides of the outer frame section of the front side panel equivalent section 220 (see Figures 1 to 6).

[0060] The rotatable joints of each link member 311-314, 321-324 constituting the first foldable side connecting section 310 and the second foldable side connecting section 320, respectively, are equipped with bag pinch prevention members 390, particularly at four rotatable joints located near the center of the wagon in the height direction (Figures 5, 6, 10 to 15).

[0061] The bag pinch prevention member 390 is made up of a disk-shaped spacer 390, like a washer, having a large outer diameter and a certain thickness, and is provided by being sandwiched between the rotatable joints of the respective link members.

[0062] The bag pinch prevention member 390 is sandwiched between the link members 311 to 314 so as not to hinder the movement of the rotatable joints of the link members 311 to 314 to which the bag pinch prevention member 390 is attached when the first foldable side connecting portion 310 and the second foldable side connecting portion 320 are extended or contracted.

[0063] The linen storage bag transport cart 10 further includes a linen storage bag bottom support plate equivalent 400. The linen storage bag bottom support plate equivalent 400 has the same structure as the foldable bottom plate equivalent 100 inside the linen storage bag transport cart 10, which is made up of a first bag bottom support plate half 410 and a second bag bottom support plate half 420.

[0064] Regarding the structure of the bottom support plate equivalent part 400 of the linen storage bag, when the linen storage bag transport cart 10 is folded when not in use, the folding bottom plate equivalent part 100 is folded to form a mountain shape when viewed from the side, and at the same time, the bottom support plate equivalent part 400 of the linen storage bag is also folded to form a mountain shape when viewed from the side.

[0065] The overall size of the bottom support plate equivalent part 400 of the linen storage bag is such that it can be raised and lowered while facing the folding bottom plate equivalent part 100 inside the wagon 10 when the linen storage bag transport wagon 10 is in use.

[0066] In addition, the bottom support plate equivalent portion 400 of the linen storage bag is large and strong enough to support and hold the bottom of the linen storage bag 15 even when the linen storage bag 15 is packed to the brim with pre-cleaned linen items 21 when the storage bag 15 is placed in the wagon with a predetermined location of the bag opening of the storage bag 15 engaged with a predetermined location of the wagon opening 11.

[0067] The first bag bottom support plate half 410 and the second bag bottom support plate half 420 of the linen storage bag bottom support plate equivalent part 400 each have an elongated rectangular frame shape, and the connecting part between these two by hinge 450 consists of a rod-shaped member or pipe-shaped member with a rectangular cross section.

[0068] The hinges 450 rotate about the lower sides of the rod-shaped or pipe-shaped members, and are flush with each other to form the bottom support plate equivalent part 400 of the linen storage bag, and when the linen storage bag transport cart 10 is not in use, the first bag bottom support plate half part 410 and the second bag bottom support plate half part 420 are bent in a mountain shape, creating a gap S2 in the entire longitudinal direction of the upper parts of the rod-shaped or pipe-shaped members connected by the hinges 150. The upper parts of the rod-shaped or pipe-shaped members are provided with a space closing cover 490 that completely closes the gap S2 created by these bent mountain shapes.

[0069] In addition, a tension coil spring 480 having a certain length and capable of generating sufficient elastic tension force is provided on the underside of the first bag bottom support plate half 410 and the second bag bottom support plate half 420 on the side where two hinges 450 are attached, which serve to enable the first bag bottom support plate half 410 and the second bag bottom support plate half 420 to rotate between a horizontal state and a mountain-shaped state when viewed from the side.

[0070] More specifically, one end of this tension coil spring 480 is connected to a predetermined position on the underside of the first bag bottom support plate component half 410, and the other end is connected to a predetermined position on the underside of the second bag bottom support plate component half 420 (see Figures 6, 13 to 15).

[0071] Next, we will explain the detailed configuration of the bag bottom support plate equivalent 400 of this embodiment, that is, the specific configurations of the first bag bottom support structural half 410 and the second bag bottom support structural half 420 that constitute these components. The bag bottom support plate equivalent 400 has a configuration similar to the folding bottom plate equivalent 100 described above, but the main difference between the two is the size, in that its overall size is such that it can fit inside the cart when the cart is in use, and in this embodiment, it is large enough to move up and down while supporting the bottom of the linen storage bag via an elastic member consisting of four tension coil springs 510-540 (500).

[0072] More specifically, the bag bottom support plate equivalent 400 comprises a first bag bottom support half 410 and a second bag bottom support half 420 that constitute it, and a hinge 150 that connects these bag bottom support halves together. The first bag bottom support half 410 is formed by integrating a long, narrow rectangular outer frame made of a square pipe with a square pipe that connects the opposing long sides of the outer frame.

[0073] Additionally, second bag bottom support half 420 has the same structure as first bag bottom support half 410. Specifically, second bag bottom support half 420 is configured by integrating a long, narrow rectangular outer frame made of square pipes with square pipes connecting the opposing long sides of the outer frame.

[0074] In this embodiment, the first bag bottom support component half 410 and the second bag bottom support component half 420 are connected by a hinge 450 at the lower part of the square pipe so that the side surfaces of one of the long sides of each abut against each other (see Figures 6, 13 to 15).

[0075] As described above, the hinge 450 is attached with the lower side of the rod-shaped member or pipe-shaped member as the center of rotation, so that when using the wagon, the space blocking cover 190 covering the gap space S2 formed between the first bag bottom support component half 410 and the second bag bottom support component half 420 that make up the bag bottom support plate equivalent part 400 can be easily formed into the shape of the bag bottom support plate equivalent part 400 by pressing the space blocking cover 190 downward, for example with the palm of your hand, so that the first bag bottom support component half 410 and the second bag bottom support component half 420 become flush with each other.

[0076] That is, when the linen storage bag transport cart 10 is not in use, the first bag bottom support half 410 and the second bag bottom support half 420 are folded in a mountain shape around the hinge 450. Note that a clearance space S2 is created in the upper portions of the rod-shaped or pipe-shaped members connected by the hinge 450 over the entire longitudinal direction of these members.

[0077] However, when the first bag bottom support half 410 and the second bag bottom support half 420, which are made of square pipe-shaped members, are pressed downward at the same time, this gap space disappears, and as a result, when the bag bottom support plate equivalent part 400 is formed, the gap space S2 formed between the first bag bottom support half 410 and the second bag bottom support half 420 is completely covered from above by the space blocking cover 490.

[0078] This prevents a part of the bottom fabric of the linen storage bag 15 and the net (mesh) at the bottom of the linen storage bag 16, which is made of a net (mesh) as described later, from getting caught in the gap space S2 and being damaged or torn as the gap space S2 narrows and disappears as the wagon is deployed.

[0079] The fixing screw 491 shown in the drawing is for fixing the space blocking cover 490 to one of the bag bottom support structural halves (first bag bottom support structural half 410 in the drawing) so that the space blocking cover 490 reliably covers and closes the entire gap space as the wagon 10 changes from the folded state to the unfolded state. In this embodiment, when closing the gap space S2, the free end of the gap space blocking cover 490 on the opposite side to the fixing screw 491 side shifts (slides) sideways to close the gap space S2.

[0080] The linen storage bag transport cart 10 also has four elastic suspension members 510-540 (500) with a certain elastic force. When the linen storage bag transport cart 10 is in use, each of the four elastic suspension members 510-540 (500) serves to enable vertical movement within the linen storage bag transport cart 10 while maintaining the linen storage bag bottom support plate equivalent 400 positioned substantially parallel to the folding bottom plate equivalent 100 (see other drawings except for Figures 7 and 8).

[0081] To ensure this operation, the four elastic hanging members 510-540 (500) have their ends connected to four different predetermined positions: a predetermined position on the bottom support plate equivalent portion 400 of the linen storage bag and a wagon opening 11 formed on the upper side of the linen storage bag transport wagon.

[0082] More specifically, the specific configuration of the four elastic suspending members 510-540 (500) will be described. In this embodiment, tension coil springs 510, 520, 530, and 540 are used as the specific configuration of the four elastic suspending members 510-540 (500). The upper ends of the tension coil springs 510-540 (500) are securely hooked and fixed to the below-described wagon component engaging portions 211, 221, 212, and 222, and the lower ends are securely hooked and fixed to the four corners of the bottom support plate equivalent portion 400 of the linen storage bag (see FIGS. 1, 3 to 5, and 9).

[0083] The following describes the elastic forces of the tension coil springs 510, 520, 530, and 540, which are elastic suspension members. In this embodiment, this elastic force will be described assuming that the upper ends of the four tension coil springs 510, 520, 530, and 540 are hooked and fixed to the wagon component engaging portions 211, 221, 212, and 222 formed on both ends of the left and right outer frame upright portions, and the lower ends are securely hooked and fixed to the engaging hooks provided at the four corners of the upper opening of the linen storage bag, thereby hanging and holding the linen storage bag inside the linen storage bag transporting wagon 10.

[0084] The elastic force of the elastic hanging member 500 is suitable for causing the bottom support plate equivalent 400 of the linen storage bag to descend toward the folding bottom plate equivalent 100 of the linen storage bag transport cart 10 as the amount of uncleaned linen (especially wet linen) put into the linen storage bag attached to the linen storage bag transport cart 10 while it is in use, and for causing the bottom support plate equivalent 400 of the linen storage bag to rise toward the cart opening 11 of the linen storage bag transport cart 10 as the amount of linen remaining in the linen storage bag decreases each time linen is removed from the linen storage bag (see Figures 10 to 21, which are explanatory diagrams of the operation of the present invention).

[0085] The linen storage bag transport cart 10 is provided with cart component engaging parts 211, 221, 212, 222 at four different predetermined positions at the opening 11 on the upper side of the linen storage bag transport cart. The cart component engaging parts 211, 221, 212, 222 allow the linen storage bag 15 to be put in and taken out from the cart opening 11 of the linen storage bag transport cart 10, and also allow the linen storage bag to be stored inside with the bag opening of the linen storage bag spread over the entire cart opening 11 via a hook provided at the bag opening (see, for example, Figures 1, 3 to 5, and 9).

[0086] Next, the specific configuration of the wagon component engaging portions 211, 221, 212, 222 will be described below. In this embodiment, the wagon component engaging portions 211, 221, 212, 222 are provided at predetermined positions near the upper opening of the linen storage bag transport wagon 10 as engaging portions for each elastic hanging member 500 (510, 520, 530, 540) provided near the upper opening of the linen storage bag transport wagon 10, and as a common engaging portion 210 that hooks the opening edge of the linen storage bag 15 onto the upper opening of the linen storage bag transport wagon 10 (see Fig. 9, which shows an enlarged view of this configuration).

[0087] In this embodiment, the wagon component engagement portions 211, 221, 212, 222 are provided integrally with the first side panel equivalent portion 210 and the second side panel equivalent portion 220 near the upper bent portion of the outer frame standing portion of the first side panel equivalent portion 210 and near the upper bent portion of the outer frame standing portion of the second side panel equivalent portion 220.

[0088] Further, the respective ends of the first connecting chain 315 and the second connecting chain 325 are connected to the wagon component engaging portions 211, 221, 212, 222. In other words, the first connecting chain 315 can be engaged with both upper ends of the common coupling portions 211, 221 corresponding to the first foldable side coupling portion 310 of the linen storage bag transport wagon 10 in a state where the first connecting chain 315 is pulled, and the second connecting chain 325 can be engaged with both upper ends of the common coupling portions 212, 222 corresponding to the second foldable side coupling portion 320 in a state where the second connecting chain 325 is pulled.

[0089] Furthermore, the four wagon component engaging portions 211, 221, 212, 222 are firmly hooked and fixed to the upper portions of the tension coil springs 510, 520, 530, 540, which are the four elastic suspending members 510 to 540 (500) as described above.

[0090] The linen storage bag transport cart 10 is provided with casters 101, 102, 103, and 104 for moving the cart, respectively attached to caster fixing plates 131, 132 (130) provided at the four corners of its bottom plate equivalent 100, i.e., on both sides of the bottom plate equivalent 100. More specifically, two casters 101, 102 are attached to both ends of the caster fixing plates 131 provided on both sides of one longitudinal side of the linen storage bag bottom support plate equivalent 400. These two casters 101, 102 are attached so that the casters 102, 103 can rotate 360 ​​degrees.

[0091] On the other hand, two casters 103, 104 are attached to both ends of a caster fixing plate 132 on both sides of the other longitudinal side of the linen storage bag bottom support plate equivalent 400. These two casters 103, 104 are attached so that the rotational direction of each of the casters 103, 104 is limited to a certain direction.

[0092] The casters 101-104 for moving the wagon fulfill the following roles: Specifically, they facilitate the movement of the linen storage and transport wagon 10 when it is being used to transport the linen from a collection location for uncleaned linens to a linen transport location such as a truck, or when it is being unloaded at a linen cleaning factory and then transported to a cleaning facility where the uncleaned products are loaded; when it is being used to transport cleaned linens from a product unloading location at a cleaning factory to a truck, or when it is being delivered to a destination by truck and then transported to a linen storage location at the destination facility.

[0093] Next, an example of the procedure for using the linen storage bag transport cart 10 will be described, which can clarify the operation of the present invention. Figure 10 is a perspective view showing a state in which a linen storage bag made of a sturdy fabric or the like is attached to the cart of the present invention and a small amount of linen before cleaning is collected in the first process of collecting the linen.

[0094] Figure 11 is a perspective view showing linen items made of sturdy fabric or the like attached to the cart of the present invention, with the pre-cleaning linen items collected halfway through the process of collecting the pre-cleaning linen items.

[0095] Figure 12 is a perspective view showing a linen storage bag made of sturdy fabric or the like attached to the cart of the present invention, and collecting as much pre-cleaning linen as possible during the pre-cleaning linen collection process.

[0096] Figure 13 is a partially transparent end view showing a linen storage bag made of sturdy fabric or the like attached to a cart according to the present invention, with cleaned, folded linen products stored in the cart at a dry cleaning factory until the bottom clamping portion of the linen product storage bag is positioned at a lower height.

[0097] Figure 14 is a view corresponding to Figure 13, showing the state in which approximately one-third of the linen products have been removed from the top of the cart and transferred by a worker to a transport bag for loading the cleaned linen products onto a truck, etc., and is an end view partially transparently showing the state in which the bottom clamping portion of the linen product storage bag has been raised to about halfway height.

[0098] Figure 15 is a view corresponding to Figure 14, showing the state in which the worker has removed the remaining one-third of the linen products from the top of the cart and transferred them to a transport bag for loading the cleaned linen products onto a truck, etc., and is an end view partially transparently showing the state in which the bottom clamping portion of the linen product storage bag has been raised to its highest height.

[0099] First, the linen storage bag transport carts 10 are folded and stored in large numbers in a storage room, and then assembled into a usable state in the storage room or outside the storage room (see the change from the state in Figures 5 and 6 to the state in Figure 1). At this time, in hotels, inns, large hospitals, etc., a very large number of linen storage bag transport carts 10 are used at one time.

[0100] One set of casters 101-104 on wagon 10 has a fixed direction of movement due to the rotation of casters 103, 104, but the other set of casters 101, 102 can freely rotate 360 ​​degrees at their attachment points relative to the wagon's bottom plate 100. This structure allows the many wagons packed and stored in the storage room to be efficiently removed one by one.

[0101] Next, we will explain how to unfold the folded linen storage bag transport cart 10 into a usable state. Specifically, as shown in Figure 6, after pressing down somewhat with the foot from above on the central portion of the bottom plate portion 100, which is bent in a mountain shape when viewed from the side, a vinyl sheet 190 is placed on the upper surface of the portion where the first bottom plate half portion 110 and the second bag bottom plate half portion 120 are joined by the hinge 150, which in this embodiment is the portion where the lower sides of the square pipes are joined by the hinge 150, so as to cover the entire space between the square pipes, and is then pressed down from above with, for example, the palm of the worker's hand.

[0102] As a result, the upper surfaces of the first bottom plate half 110 and the second bag bottom plate half 120 mate together to form a bottom plate equivalent part 100 equivalent to a single plate material. At this time, the elastic tension force of the coil spring 180 can be used to quickly form a bottom plate equivalent part 100 that is flush (with the upper surface in the same plane).

[0103] In addition, in this embodiment, the undersides of the square pipes are joined by hinges 150, and all of the spaces created between these square pipes are covered with space-blocking covers 190 made of vinyl sheets made of polyethylene or the like that have a certain thickness and sufficient elasticity.

[0104] As a result, even if the side surfaces of the square pipes are forced to close together by the elastic force of the tension coil spring 180 provided near the hinge portion and the space is suddenly blocked, there is no risk of a serious accident occurring, for example, if the palm of a worker who gets caught in the gap or the little finger that has been inserted by mistake gets caught.

[0105] In addition, when the linen storage bag transport cart 10 is unfolded from its folded state to a usable state, the process by which the storage bag bottom support equivalent part 400 changes from a mountain-shaped shape when viewed from the side to a flush surface so that it supports the entire bottom of the storage bag is the same as the folding and unfolding process of the bottom plate equivalent part 100 described above.

[0106] Specifically, the first bottom plate half 410 and the second bag bottom support half 420 that make up the storage bag bottom support portion 400 are connected by hinge 450, so by changing the shape from a mountain shape to a flattened shape when viewed from the side, the tension of tension coil spring 460 provided near hinge 450 causes the sides of the square pipes to close together forcefully, suddenly closing off this space. However, by providing vinyl sheet 490 that completely covers this original space from above, it is possible to prevent a portion of the bottom of the linen storage bag from being suddenly pinched and being damaged or broken.

[0107] After the linen storage bag transport cart 10 is thus made ready for use, the linen items 21 to be cleaned are placed one after another into the linen storage bag 15 through the upper opening.

[0108] Before the linen items 21 to be cleaned are placed in the linen storage bag 15, the linen storage bag 15 is empty, so the weight of the bag alone is applied to the storage bag bottom support equivalent part 400 of the cart.

[0109] As a result, almost no tension is exerted on the tension coil springs 500, whose lower ends are connected to the four corners of the storage bag bottom support equivalents 400 and whose upper ends are connected to the common engagement portions of the wagon. As a result, the storage bag bottom support equivalents 400 of the wagon 10 are positioned at the upper side in the height direction of the wagon 10, and accordingly the bottom of the linen storage bag 15 is also positioned at the upper side of the wagon 10 (see Figure 10).

[0110] With the storage bag bottom support equivalent portion 400 of the cart 10 and the linen storage bag 15 located above it positioned in this manner, when a cart user places pre-cleaning linen items 21 into the linen storage bag 15, they do not have to perform the conventional procedure of throwing or shoving a certain amount of linen items 21 into the linen storage bag near the bottom of the cart 10, and then assuming an awkward position and using their palms or other objects to narrow the gaps between the linen items stored at the bottom of the linen storage bag 15 near the bottom board of the cart 10 in order to increase the amount of linen items that can be stored in one storage bag, which is an effort that puts strain on the body (see Figure 10).

[0111] In other words, when a cart user places, for example, the first third of the uncleaned linen items 21 to be stored in the linen storage bag 15 into the storage bag 15, the storage bag bottom support equivalent part 400 of the cart 10 is located at the upper side in the height direction of the cart 10, so the bottom of the linen storage bag 15 is also located at the upper side of the cart 10, and the linen items 21 can be efficiently packed into the storage bag without having to assume an awkward posture (see Figure 10).

[0112] Next, as the pre-cleaned linen items 21 are stored in the linen storage bag 15 as described above, the weight of the entire linen storage bag increases, and accordingly, the storage bag bottom support equivalent part 400 gradually descends downward against the elastic force of the four tension coil springs 510, 520, 530, 540 (500).

[0113] In conjunction with this downward movement, the linen items contained in the linen storage bag 15 are themselves raised, so that the height of the top surface of the following linen items 21 contained in the linen storage bag 15 is kept at approximately the same height as the upper opening of the cart 10 (see the change from Figure 10 to Figure 11).

[0114] As a result, the wagon user can always maintain a constant posture and orientation of the body when storing the linen items 21 before cleaning in the linen item storage bag 15, and there is no need to unnecessarily reach into the back of the bag and assume an awkward posture, so the work of storing the linen items 21 can be carried out efficiently and the user can avoid suffering from back pain, stiff shoulders, etc. caused by physical strain due to an awkward posture.

[0115] Similarly, when the cart user places the remaining one-third of the uncleaned linens 21 to be stored in the linen storage bag 15, the storage bag bottom support portion 400 of the cart 10 slowly moves down from the top to the bottom in the middle of the height of the cart 10. In response to this, the bottom of the linen storage bag 15 also moves down slowly from the top to the bottom in the middle of the height of the cart 10 (see the change from Figure 11 to Figure 12).

[0116] This causes the linen items stored in the linen storage bag 15 to be raised, so that the next linen items 21 are closer to the same height as the top surface of the linen items 21 stored in the linen storage bag 15 that stores the next linen items 21 in the linen storage bag 15 (see Figure 12).

[0117] As a result, the cart user can maintain a constant body posture and orientation when placing the pre-cleaned linens 21 into the linen storage bag 15, and there is no need to reach unnecessarily deep into the bag and assume an awkward position, allowing the user to efficiently store the linens 21 and avoid back pain, stiff shoulders, and other issues caused by the physical strain of an awkward position. This can be easily understood by comparing the changes from Figure 10 to Figure 11.

[0118] Furthermore, when the cart user places the remaining one-third of the uncleaned linens 21 to be stored in the linen storage bag 15 into the storage bag, the storage bag bottom support portion 400 of the cart 10 moves from the upper side to the lower side of the heightwise lower portion of the cart 10, and accordingly the bottom of the linen storage bag 15 also moves from the upper side to the lower side of the heightwise lower portion of the cart 10. As a result, the linens themselves stored in the linen storage bag 15 are raised, and the height of the top surfaces of the subsequent linens 21 stored in the linen storage bag 15 is kept at approximately the same height as the upper opening of the cart 10 (see Figure 12).

[0119] As a result, the cart user can maintain a constant body posture and orientation when placing the pre-cleaned linens 21 into the linen storage bag 15, and there is no need to unnecessarily reach deep into the bag and assume an awkward position, allowing the user to efficiently store the linens 21 and avoid back pain, stiff shoulders, and other discomfort caused by the physical strain of an awkward position. This can be easily understood by comparing the changes from Figure 11 to Figure 12.

[0120] After the linen storage bags 15 of the linen storage bag transport cart 10 are filled with the linen items 21 to be cleaned in this way, the cart user pushes the cart 10 and either loads it directly onto a linen cleaning factory transport truck waiting at a hotel, inn, lodging facility, hospital with inpatient facilities, etc., or transfers all of the linen items 21 into dedicated delivery mail transport bags and loads them onto the truck.

[0121] Such linen items 21 to be cleaned are usually so large that they cannot all be accommodated in one cart 10. Therefore, the above-described process is repeated until all the linen storage bag transport carts 10 are loaded onto a truck and transported to the dry cleaning factory by truck.

[0122] In addition to the above, the present invention can prevent unexpected accidents from occurring when collecting linen items 21 before cleaning using the linen storage bag transport cart 10. Specifically, the two casters (e.g., casters 101 and 102) fixed to one end of the casters 131 and 132 (130) provided at the bottom of the linen storage bag transport cart 10 have a predetermined rotational direction, but the two casters (e.g., casters 103 and 104) fixed to the other end of the fixed plates 131 and 132 (130) are provided so that their rotational direction can be freely changed by 360 degrees.

[0123] This prevents the linen storage bag transport cart 10 from accidentally bumping into guests staying at lodging facilities such as hotels and inns, or hitting parts of the accommodation equipment while being transported. Furthermore, particularly in large hospitals, there are many hospitalized patients who move through the hospital corridors while holding onto their IV stands. Therefore, if the cart 10 were to accidentally hit a patient, it could cause serious damage. To prevent this from happening, the cart user can skillfully push the cart 10 to transport the pre-cleaning linen 21 to the truck.

[0124] Then, the wagon 10 for transporting linen storage bags containing all the linen items 21 to be cleaned, or the linen delivery transport bags refilled before transport, is loaded onto a truck and transported to a linen cleaning factory, and then the loaded wagon 10 for transporting linen storage bags or the linen delivery transport bags refilled before transport are unloaded again at the cleaning factory and all are taken to a linen cleaning input port in the factory.

[0125] Here, we will explain the case where the uncleaned linen items 21 are transported to the cleaning factory by truck without using a dedicated storage, transportation, and transport bag, and the uncleaned linen items 21 are packed fully in the linen item storage bag 15.

[0126] The procedure for this case is as follows: The linen items 21 are sequentially removed from the linen storage bag 15 in the reverse order of the procedure for storing the linen items 21 before cleaning in the linen storage bag 15, and are then placed into the inlet of the linen cleaning equipment. By repeatedly removing the linen items 21 from the cart 10 and placing them into the inlet, the amount of linen items 21 stored in the linen storage bag 15 decreases.

[0127] Accordingly, the weight of the linen storage bag itself acting on the storage bag bottom support equivalent part 400 also becomes lighter, so that, contrary to the above-mentioned storage bag bottom support equivalent part 400 descending from the top to the bottom of the wagon 10 against the elastic pulling force of the four tension coil springs 510, 520, 530, 540, the storage bag bottom support equivalent part 400 rises from the bottom to the top of the wagon 10 due to the elastic pulling force of the four tension coil springs 510, 520, 530, 540 (see the change in the amount of linen items loaded on the wagon from Figure 13 to Figure 15).

[0128] In this way, the storage bag bottom support equivalent portion 400 of the wagon 10 balances the pulling force with the tension coil spring according to the amount (weight) of uncleaned linen items 21 stored in the linen storage bag 15 and not removed, and its position rises from the bottom to the top of the wagon 10.

[0129] Therefore, even when the uncleaned linen items 21 stored in the linen storage bag 15 are taken out of the storage bag, the portion from which the linen items 21 are taken out is always located at the same height as the opening of the linen storage bag 15, which is approximately the same as the top opening of the wagon 10.

[0130] This allows the cart user to maintain a constant body posture and orientation when removing the pre-cleaned linens 21 from the linen storage bag 15, and eliminates the need to unnecessarily reach deep into the bag and assume an awkward position, allowing the user to efficiently remove the linens 21 while avoiding back pain, stiff shoulders, and other discomfort caused by the physical strain of an awkward position. This can be easily understood by looking at the changes in the amount of linen 21 loaded on the cart in order from Figure 13 to Figure 15.

[0131] Next, the cleaned linen items 22 are washed and dried by the cleaning equipment of the linen cleaning factory, and are cleaned and wrinkled by a roll ironer before being neatly folded by a folding equipment.The cleaned linen items 22 are then loaded directly onto the linen storage bag transport cart 10 again, or packed into dedicated linen delivery transport bags, and transported in large quantities by truck to the hotel, inn, hospital with inpatient facilities, etc. from which they were taken.

[0132] In this case, if the wagon is loaded onto a truck and transported to its original location, it will naturally be necessary to place the cleaned linen items 22 back into the linen storage bag transport wagon 10 before transporting them by truck.

[0133] The same applies when a dedicated linen delivery and transport bag is loaded onto a truck, and at the delivery destination, the cleaned linen items 22 are removed from the delivery and transport bags, and all the cleaned linen items 22 packed in them are taken out and repacked into the linen storage and transport cart 10.

[0134] The following describes a method for storing cleaned linens 22 in the linen storage bag 15 at a dry cleaning factory in this case. Specifically, the linen storage bag transport cart 10, with the linen storage bag 15 emptied of its contents, is moved to the post-cleaning linen product removal section in the dry cleaning facility and waits there.

[0135] Then, the clean, folded linens 22 coming out one after another from the product removal section are then stored in the linen storage bags 15 of the linen storage bag transport cart 10. The storage of the cleaned linens 22 in the linen storage bags 15 of the linen storage bag transport cart 10 is basically equivalent to the process of collecting the uncleaned linens 21 and storing them one after another in the linen storage bags 15 of the linen storage bag transport cart 10, as described above, so a description of the procedure for storing the uncleaned linens 21 in the linen storage bags 15 will be omitted.

[0136] In this way, after the cleaning of the linen items 21 is completed at the factory equipment, the cleaned, neatly folded linen items 22 are delivered to the delivery destination together with the linen storage bag transport cart 10, and then the cleaned, neatly folded linen items 22 are sequentially removed from the linen storage bag transport cart 10 in the reverse order of the procedure shown in Figures 10 to 12.

[0137] Here, we will describe the unique action of storing cleaned linens 22 in the linen storage bag 15 of the linen storage bag transport cart 10 according to the present invention. Specifically, as described above, the storage bag bottom support equivalent 400 has a unique configuration that descends as the amount (weight) of linens 22 stored in the storage bag increases, so when storing cleaned linens 22 in the storage bag, the storage bag bottom support equivalent 400 itself descends as more cleaned linens 22 are stored, and the bottom of the linen storage bag 15 also descends accordingly.

[0138] However, since the linen storage bag 15 already contains the cleaned linen items 22, the position (height) at which the linen items 22 are subsequently stored in the linen storage bag 15 roughly coincides with the height of the upper opening of the storage bag.

[0139] This allows the cart user to maintain a constant body posture and orientation when storing cleaned linens 22 in the linen storage bag 15, just as when storing uncleaned linens 21 in the storage bag 15, and also eliminates the need to unnecessarily reach deep into the bag and assume an awkward position when storing them. This allows the work of storing cleaned linens 22 to be done efficiently, and also prevents back pain, stiff shoulders, and other problems caused by physical strain due to an awkward position.

[0140] Also, after all the cleaned linen items 22 have been removed from the linen storage bag transport cart 10, the above-mentioned linen storage bag transport cart 10 can be folded from the folded state to the unfolded state in the reverse order, and stored in a dedicated storage space of the linen storage bag transport cart 10.

[0141] As a result of this type of work, large hotels, inns, and large hospitals with inpatient facilities will have an extremely large number of linen storage bag transport carts 10, but it is possible to store as many of these carts 10 as possible in a limited, small storage space.

[0142] Next, we will explain a modified example of the linen storage bag transport cart 10 according to this embodiment. This modified example has the same basic configuration as the linen storage bag transport cart 10 according to this embodiment, but has the following structural differences and unique effects based on them.

[0143] Figure 16 is a perspective view showing a linen storage bag made of a sturdy net attached to the cart of the present invention, with a small amount of pre-cleaning linen collected during the initial process of collecting the linen.

[0144] Figure 17 is a perspective view showing linen items made of a sturdy net attached to the cart of the present invention, with the pre-cleaning linen items collected halfway through the process of collecting the pre-cleaning linen items.

[0145] Figure 18 is a perspective view showing a linen storage bag made of a sturdy net attached to the cart of the present invention, and collecting as much pre-cleaning linen as possible during the pre-cleaning linen collection process.

[0146] Figure 19 is a partially transparent end view showing a linen storage bag made of a sturdy net attached to a cart according to the present invention, with cleaned and folded linen products stored in a dry cleaning factory until the bottom clamping portion of the linen product storage bag is positioned at a lower height.

[0147] Figure 20 corresponds to Figure 19, showing the state in which approximately one-third of the linen products have been removed from the top of the cart and transferred by a worker to a transport bag for loading the cleaned linen products onto a truck, etc., and is an end view partially transparently showing the state in which the bottom clamping portion of the linen product storage bag has been raised to about halfway height.

[0148] Figure 21 corresponds to Figure 20, which shows the state in which the worker has removed the remaining one-third of the linen products from the top of the cart and transferred them to a transport bag for loading the cleaned linen products onto a truck, etc., following the state in Figure 14, and is an end view partially transparently showing the state in which the bottom clamping portion of the linen product storage bag has been raised to its highest height.

[0149] The elastic suspension member 500 of the linen storage bag transport cart 10 according to this modification (hereinafter simply referred to as the "modification") is made up of tension coil springs 510, 520, 530, and 540, as described above, but differs from the above embodiment in that each of the springs has a coil spring cover 550. The tension coil springs 510, 520, 530, and 540 themselves are covered by the coil spring cover 550.

[0150] The coil spring cover 550 is designed to prevent the linen storage bag from being caught and damaged in a small gap created by the expansion and contraction of the coil spring when the bottom support plate equivalent part 400 of the linen storage bag rises and falls inside the linen storage bag transport cart 10 when putting linens in or taking them out of the linen storage bag during use of the linen storage bag transport cart 10, or to prevent part of the net of the linen storage bag, which is made entirely of a net-like bag body, from getting caught or caught and damaged.

[0151] The process that led to the introduction of the above-mentioned modified example and the unique effects of this modified example are explained below. The linen items 21 and 22 are not limited to sheets and pillow covers used in hotels, inns, and hospitals with inpatient facilities, as mentioned above.

[0152] Specifically, beauty salons, massage salons, hot yoga studios, and other establishments have become popular in recent years. These establishments use a large amount of oil, such as massage oil, which remains soaked into used linens 21. When collecting these used linens 21, the uncleaned linens 21 are forcibly packed into a linen storage bag 15, and the wagon 10 containing the linen storage bag 15 is transported by truck to a linen cleaning factory for cleaning.

[0153] However, because these oily, used linens 21 are stuffed into a standard linen storage bag 15, they are already compressed and heat-accumulating to a certain extent within the storage bag. Even when these oily linens 21, which have been stuffed into the storage bag and have accumulated heat, are then repacked into a truck-loaded transport bag for transport to a linen cleaning factory, these oily linens 21 become even more compressed. Serious problems can arise if a large number of linens 21 are packed into the truck bed and transported to a linen cleaning factory, for example, under the scorching sun of midsummer.

[0154] Specifically, the temperature inside the truck's transport compartment rises significantly due to the closed-off, non-air-conditioning environment and the radiant heat from direct sunlight continuously hitting the outer panels of the truck's loading compartment. Furthermore, the oily linen items 21 packed in the linen storage bags 15 are transported in a highly compressed state, and a combination of factors, such as heat buildup inside the linen items and frictional heat generated by the linen items rubbing against each other due to vibrations during transport, can lead to a fire that spreads to the oil in the linen items 21 and causes a vehicle fire.

[0155] This phenomenon may also occur if the wagons are packed into truck transport bags instead of being loaded onto a truck, as the oily linen items 21 will be further compressed.

[0156] Furthermore, even if the truck arrives at the linen cleaning factory without any ignition occurring inside the transport vehicle, the oily linen 21 packed inside the linen storage bag will have accumulated a considerable amount of heat, and when this linen 21 is placed into the laundry chute of the cleaning factory and the cleaning process begins, it may become even hotter and ignite, which could lead to a fire in the cleaning facility.

[0157] In order to prevent such serious accidents, in the process prior to the above-mentioned collection of used oily linens, which are then repacked into truck-loaded transport bags and then transported to the linen cleaning factory, measures have been taken in which, in the stage where the oily linens 21 are collected by cart, linen storage bags 16 made of a sufficiently strong net such as a golf net are used instead of the usual linen storage bags 15, thereby allowing the linens 21 packed in the linen storage bags 16 to efficiently dissipate heat to their surroundings.

[0158] However, when a linen storage bag 16 made of such a sufficiently strong net is attached to the wagon 10, as the bottom support equivalent part 400 of the storage bag moves up and down when linen items 21 are put in or taken out of the linen storage bag 16, the gaps in the tension coil springs 510, 520, 530, and 540 that suspend it open and close, and in this process, part of the net may become pinched between the tension coil springs 510, 520, 530, and 540.

[0159] This increases the possibility that a portion of the net (mesh material) of the linen storage bag 16 will be damaged or cut off. If this condition is left unattended, the damaged portion of the linen storage bag 16 will become larger, and when small linen items such as pillowcases are placed in the storage bag, they may fall out of the damaged portion and be lost.

[0160] Furthermore, a user of wagon 10 may notice that a portion of the netting becomes caught between tension coil springs 510, 520, 530, and 540 as the gaps between tension coil springs 510, 520, 530, and 540 open and close. In such cases, not only is it extremely time-consuming to try to correct the trapped netting, but there is also the risk of accidentally getting one's fingertip caught between tension coil springs 510, 520, 530, and 540, resulting in unexpected injury.

[0161] However, by attaching coil spring covers 550 that individually and entirely cover each of the tension coil springs 510, 520, 530, 540 (500) to each of the tension coil springs 510, 520, 530, 540 as in the modified example of this embodiment, it is possible to reliably prevent the above-mentioned problems and unexpected injuries to the wagon user.

[0162] Finally, the following describes an extremely advantageous feature of the present invention. The storage bag bottom support portion 400, which can be raised and lowered by the elastic force of the tension coil spring 500, is made of a rectangular pipe member made of, for example, an aluminum alloy, which has excellent strength and durability, as shown in the drawings.

[0163] When storing linen items in the cart, the linen items are bent into a mountain shape by hinges 450 attached to the underside of the joints of each pipe member, and when the cart is in use, the tension coil spring 180 for forming the storage bag bottom support equivalent part, which is provided on the same underside as the above-mentioned hinge 450, ensures that the sides of the opposing rectangular pipe members of the two constituent halves 410, 420 that make up the storage bag bottom support equivalent part 400 are tightly fitted together overall.

[0164] This configuration prevents the angle between the constituent halves 410, 420 of the storage bag bottom support portion 400 from bending into a V-shape when viewed from the side, even when the weight of a very heavy linen storage bag 15, 16, for example, filled with linens before dry cleaning, acts directly on the bag. In other words, the mating surfaces of the bag bottom support constituent halves 410, 420 do not bend or deform toward the downstream side at both ends in the width direction. This is similar to the so-called wedge effect, and its effect can be easily understood from the structural perspective.

[0165] In particular, bath towels used in the bathrooms equipped with showers in each hotel guest room are saturated with water, and if these are all packed into the linen storage bag 15, the overall weight of the linen storage bag 15 will become quite large, and a considerable load will be applied to the storage bag bottom support equivalent part 400 that supports the bottom of the linen storage bag 15.However, because the storage bag bottom support equivalent part 400 has the structure described above, it will not be damaged even if such a load is applied.

[0166] In addition, since the storage bag bottom support equivalent part 400 itself is formed of a frame body of square pipe with a rectangular cross section, the overall weight of this part is light, and the coil springs connected to each of the four corners of the top of the wagon allow for smooth, effortless lifting and lowering movements in the vertical direction.

[0167] Furthermore, when the frame halves of the square pipes that make up the storage bag bottom support equivalent part 400 form a mountain shape when stored in the wagon, a coil spring cover 550 made of a vinyl sheet 490 or the like is formed to cover from above the V-shaped groove space that is formed in the longitudinal direction of the two opposing square pipes due to this mountain shape.Therefore, when the linen storage bag 15 is left attached to the wagon 10 and the wagon 10 is changed from a folded state to a usable state, it is possible to prevent the bottom of the linen storage bag 15 from being pinched in this gap part 490, damaging this part and causing the damaged and weakened part to tear when the linen storage bag 15 is filled to the brim with linens 21, which would suddenly make the linen storage bag 15 unusable while the linens are being collected.

[0168] In particular, when the linen storage bag 16 is made of net (mesh) as described above, if a V-shaped groove-shaped space as described above is formed, the present invention can reliably prevent a part of the net from being easily pinched when making the wagon 10 usable, which would quickly render the linen storage bag 16, especially one made of expensive net (mesh), unusable.

[0169] Furthermore, the wagon bottom plate equivalent 100 of the wagon itself has the same basic configuration as the storage bag bottom support equivalent 400 described above, and a space blocking cover 190 made of a vinyl sheet or the like is formed to cover from above the V-shaped groove space formed in the longitudinal direction of the two square pipes. This makes it possible to prevent the user of the wagon 10 from accidentally injuring themselves by pressing this part with the palm of their hand and getting part of their palm or fingers caught in it when assembling the wagon 10.

[0170] In addition, the foldable side connectors of the wagon 10 that can be extended and contracted in the width direction are formed in a pantograph-like configuration, i.e., two links crossing each other to form an X shape, which are then arranged in parallel to form four links that are partially overlapped and rotatable with each other. In addition, a relatively large disk-shaped spacer 390 is sandwiched between the overlapping parts of each link that rotate and slide relative to each other to prevent pinching.

[0171] By having such a configuration, the present invention prevents a part of the linen storage bag 16 made of the above-mentioned cloth or a part of the linen storage bag 16 made of a net-like (mesh) material from being pinched in the rotating sliding portion of each link and causing damage to the bag.

[0172] The above-mentioned description of the preferred embodiment of the present invention and the specific configurations shown in the drawings show that the present invention solves all of the problems described in the "Problems to be Solved in the Past" section at once. In other words, the unique and special usefulness of the present invention can be understood from the above-mentioned description of the preferred embodiment and the drawings.

[0173] The present invention is not limited to the specific examples of the embodiments shown in the above text and drawings, and various materials can be used within the scope of the present invention as long as the effects of the present invention can be achieved. For example, the pipe material corresponding to the wagon side plate portion 200 that stands upright while the wagon 10 is fixed may be replaced with a material such as a honeycomb plate that has excellent strength and durability.

[0174] The two bottom plate halves 210, 220 constituting the wagon bottom plate equivalent 100 and the two bag bottom support halves constituting the linen storage bag bottom equivalent may be substituted with honeycomb plate material having similar strength and durability. Also, instead of the coil springs in the above-described embodiment, stretchable rubber members having sufficient durability may be used.

[0175] Furthermore, the linen product storage bags 15, 16 transported by the linen storage bag transporting cart 10 are not limited to linen products before or after cleaning as described above, as long as they exhibit the effects of the present invention, and various other items can be stored and transported in these storage bags.

[0176] More specifically, in the above-described embodiment, the specific contents to be packed into the supplies storage bag 15 provided on the supplies storage bag transport cart 10 were introduced as linen items that are widely used on a daily basis in accommodation facilities such as hotels and inns, and hospitals. However, other examples of items include personal items such as cushions, blankets, pajamas, bathrobes, and personal slippers for indoor use that guests at hotels and inns have accidentally left behind, which can be wrapped in plastic with the room number written on them and then placed into the supplies storage bag one after another.

[0177] In this case, it is not expected that an extremely large number of items will be left behind, so a single supply storage bag transport cart 10 can be used to collect, organize, and store items left behind by guests in a fairly large-scale hotel, inn, or other accommodation facility. From this perspective, the present invention is not limited to a linen supply storage bag transport cart 10, but can be effectively used in such facilities as a general supply storage bag transport cart 10 for items other than linens.

[0178] In addition to the above, in a specific embodiment of the linen storage bag transport cart according to the present invention, the linen storage bag attached to the linen storage bag transport cart is made up of a linen storage bag and an outer bag that is replaced infrequently and an inner bag that is replaced frequently and is cleaned each time it is replaced, which is excellent in terms of usability. More specifically, the inner bag can be attached in a state where it is entirely overlapped along the inner surface of the outer bag, and engaging hooks that detachably engage with engaging portions provided at each of the four upper corners of the linen storage bag transport cart are provided at predetermined positions on the opening of the outer bag. If the inner bag is removed from the outer bag and only the inner bag is cleaned and the cleaned inner bag is reattached to the outer bag each time the linen storage cart is used, this configuration is extremely excellent in terms of actual usability.

[0179] In addition, as a specific form of the wagon for transporting supplies storage bags according to the present invention, the manufacturing method of the wagon for transporting linen storage bags is a wagon for transporting supplies storage bags as described in claim 1, in which the linen storage bag is made of a mesh net bag, and the upper opening of the mesh net bag is provided with engaging hooks that can be detachably engaged with engaging portions attached at positions where they can be engaged with engaging portions provided at the four upper corners of the linen storage bag.This allows the net bag to be kept firmly attached to the wagon for transporting linen storage bags in just the right position, and when linen items are stuffed into or removed from the storage bag, part of the net of the storage bag will not get caught on the linen items, making it extremely easy to use in practice. [Explanation of symbols]

[0180] 10. Linen storage and transport cart ("cart for storing linen bags" or "cart") 100 (Wagon bottom plate equivalent part 101, 102, 103, 104 (for moving wagons) Casters 110 (first) bottom plate component half 120 (Second) base plate component half 130(131,132) Caster mounting plate for moving the wagon 150 Hinge 180 coil spring 190 Space Closure Cover 191 Fixing screw 210 (first) side plate equivalent part 220 (Second) side panel equivalent part 211, 221, 212, 222 Wagon component engagement part 310 first folding side link 311, 312, 313, 314 (310) Link member (long, thin metal plate) 315 First connecting chain 320 Second folding side link 325 Second connecting chain 390 Anti-pinch member (disk-shaped spacer) 400 (Linen) Storage Bag Bottom Support Plate Equivalent 410 First bag bottom support structure half 420 Second bag bottom support structure half 450 Hinge 480 coil spring 490 Space Closure Cover 491 Fixing screw 500 (510, 520, 530, 540) Tension coil spring (elastic suspension member) 550 coil spring cover

Claims

1. A trolley for transporting goods storage bags has a box-like shape that forms a trolley opening at the top when in use, and is provided with casters for moving the trolley at predetermined positions on the bottom, and is used to transport goods storage bags and a large number of goods stored therein. The wagon for transporting goods storage bags has a foldable bottom plate equivalent portion in which a first bottom plate half portion and a second bottom plate half portion having the same elongated rectangular shape are joined by a hinge at one longitudinal edge portion of each of the bottom plate half portions; a first side panel portion and a second side panel portion respectively rising from edges of the opposite bottom plate half portions parallel to each other in the longitudinal direction and connected by the hinges of the first and second bottom plate half portions, the upper edges of which form opposing edges of the wagon opening; At both widthwise ends of the two opposing side panel equivalents, there are provided a first foldable side connector and a second foldable side connector that are expandable and contractible in the width direction and that enable the spacing between the first side panel equivalent and the second side panel equivalent to be narrower than the spacing in the use state, The first and second bottom plate half portions are folded via hinges provided on the respective bottom plate half portions so as to form a mountain shape when viewed from the longitudinal side, and the first and second foldable side connecting portions are compressed in the width direction, thereby enabling the box-shaped supply bag transport wagon to be folded when in use and stored in a narrow space when not in use, and a bottom support plate equivalent for the supplies storage bag, which has substantially the same structure as the folding bottom plate equivalent, consisting of the first bottom plate half and the second bottom plate half, inside the supplies storage bag transport wagon, but has an overall size that allows it to be accommodated inside the supplies storage bag transport wagon in a state where it is facing the folding bottom plate equivalent when the supplies storage bag transport wagon is in use, and is large enough to support and hold the bottom of the supplies storage bag when the supplies storage bag is stored in the wagon with a predetermined location of the bag opening of the storage bag engaged with a predetermined location of the wagon opening. an elastic suspension member having a certain elastic force, both ends of which are connected between a predetermined position of the part corresponding to the bottom support plate of the goods storage bag and a predetermined position of the wagon opening of the goods storage bag transport wagon, so as to enable the part corresponding to the bottom support plate of the goods storage bag to move up and down inside the wagon while maintaining the part corresponding to the bottom support plate of the goods storage bag facing and substantially parallel to the part corresponding to the folded bottom plate when the wagon is in use; and a supply storage bag opening edge engaging portion provided at the wagon opening, which allows the supply storage bag to be put in and taken out from the wagon opening, and which allows the supply storage bag to be stored inside in a state in which the bag opening of the supply storage bag is expanded over the entire wagon opening via an engaging portion provided at the bag opening of the supply storage bag, When the goods storage bag transport wagon is folded when not in use, the folding bottom plate equivalent portion is folded to form a mountain shape when viewed from the side, and at the same time, the goods storage bag bottom support plate equivalent portion is also folded to form a mountain shape when viewed from the side, A wagon for transporting supplies storage bags, characterized in that the elastic force of the elastic hanging member is suitable for causing the bottom support plate equivalent of the supplies storage bag to descend toward the folding bottom plate equivalent of the supplies storage bag transport wagon as the amount of supplies added to the supplies storage bag attached to the wagon increases each time supplies are added to the supplies storage bag attached to the wagon while the wagon is in use, and for causing the bottom support plate equivalent of the supplies storage bag to rise toward the wagon opening of the wagon for transporting supplies storage bags as the amount of supplies remaining in the supplies storage bag decreases each time supplies are removed from the supplies storage bag.

2. The first and second bottom plate halves of the folding bottom plate equivalent portion each have an elongated rectangular shape, and the hinged connection between the two is made of a rod-shaped or pipe-shaped member having a rectangular cross section, and the hinges are flush with each other with the lower sides of the rod-shaped or pipe-shaped members as their rotation centers to form the folding bottom plate equivalent portion, and when the goods storage bag transport cart is not in use, the first and second bottom plate halves are bent in a mountain shape, creating a gap in the entire longitudinal direction of the upper parts of the rod-shaped or pipe-shaped members connected by the hinges, and the upper parts of the rod-shaped or pipe-shaped members are provided with a space-blocking cover that completely blocks the gap created by the mountain-shaped bending state.

2. The article storage bag transport cart of claim 1, wherein the first bag bottom support plate equivalent and the second bag bottom support plate equivalent of the article storage bag bottom support plate equivalent each have an elongated rectangular frame-like shape, and the hinged connection between the two is made of a rod-shaped or pipe-shaped member having a rectangular cross section, and the hinges are flush with each other with the lower side of the rod-shaped or pipe-shaped member as the center of rotation, forming the article storage bag bottom support plate equivalent, and when the article storage bag transport cart is not in use, the first bag bottom support plate equivalent and the second bag bottom support plate equivalent can be bent in a mountain shape to create a gap along the entire longitudinal direction of the upper parts of the rod-shaped or pipe-shaped members connected by the hinges, and the upper parts of the rod-shaped or pipe-shaped members are provided with a space-blocking cover that completely blocks the gap created by the mountain-shaped bending state.

3. The trolley for transporting goods storage bags described in claim 1, characterized in that the elastic hanging member consists of a tension coil spring, and the tension coil spring itself is covered by a coil spring cover to prevent the goods storage bag from being caught in a small gap created by the expansion and contraction of the coil spring when the bottom support plate equivalent part of the goods storage bag rises and falls inside the trolley when putting goods into or taking goods out of the goods storage bag during use of the trolley for transporting goods storage bags, and to prevent part of the net of the goods storage bag, which is made entirely of a net-shaped bag body, from being caught or caught and damaged.

4. The engaging portions of the elastic hanging members provided near the upper opening of the wagon for transporting the goods storage bag and the common engaging portion for hooking the opening edge portion of the goods storage bag onto the upper opening of the wagon for transporting the goods storage bag are provided at predetermined positions near the upper opening of the wagon for transporting the goods storage bag, The wagon for transporting goods storage bags as described in claim 1, characterized in that the common connecting portion corresponding to the first foldable side connecting portion of the wagon for transporting goods storage bags is capable of engaging both ends of the first connecting chain when the first connecting chain is pulled, and the common connecting portion corresponding to the second foldable side connecting portion is capable of engaging both ends of the second connecting chain when the second connecting chain is pulled.

5. A wagon for transporting supplies storage bags as described in claim 1, characterized in that each of the wagon-moving casters on both widthwise ends of the bottom support plate equivalent of the supplies storage bag on one side in the direction in which the wagon is folded when not in use is rotatably attached to the bottom support plate equivalent of the supplies storage bag, and each of the wagon-moving casters on both widthwise ends of the bottom support plate equivalent of the supplies storage bag on the other side is attached to the folding bottom plate equivalent so as to limit the direction of travel of the casters to a certain direction.

6. The supply storage bag transport cart described in claim 1, characterized in that the supply storage bag attached to the supply storage bag transport cart consists of an outer bag that is replaced less frequently and an inner bag that is replaced more frequently and is cleaned each time it is replaced, the inner bag can be attached in a state where it is completely overlapped along the inner surface of the inner side of the outer bag, and an engaging hook that detachably engages with engaging portions provided on each of the four upper corners of the supply storage bag transport cart is provided at a predetermined position on the opening of the outer bag.

7. A cart for transporting goods storage bags as described in claim 1, characterized in that the goods storage bag is made of a mesh net bag, and each of the upper openings of the mesh net bag is provided with engaging hooks that can be detachably engaged with engaging portions attached at positions that can engage with engaging portions provided at the four upper corners of the cart for transporting goods storage bags.

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