Cart device

Abstract

To provide a cart device that can improve stability while providing an increased placing surface on which items can be placed.SOLUTION: A cart device 1 according to the present invention includes: a base part 20 movable on a floor surface; a support body 21 extending upward from the base part 20; a first item placing part 41 provided with a placing part holding part connected to the support body 21 and a first placing surface 41a on which items can be placed; a second item placing part 42 disposed at a different position from the first item placing part 41 in plan view and provided with a second placing surface 42a which is located adjacent to the first placing surface 41a and on which items can be placed; and a connection member 61 connecting the first item placing part 41 and the second item placing part 42. At least one of the first item placing part 41 and the second item placing part 42 is fixed to the placing part holding part.SELECTED DRAWING: Figure 1

Description

Technical Field

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[0001] The present invention relates to a cart device.

Background Art

[0002] For example, Patent Document 1 discloses a cart device that can travel and is used in offices, hospitals, etc. These cart devices include a base portion that is placed on the floor surface to enable the cart device to move, a plate-shaped article placement portion (shelf board) on which articles can be placed, and a support body that extends upward from the base portion and supports the article placement portion.

[0003] As described in Patent Document 1, the support body provided in the conventional cart device extends upward from near the central portion of the base portion. Further, the article placement portion is formed by supporting one end by the support body and widening the placement surface toward one side away from the support body. The article placement portion is basically formed so as to be within the minimum circumscribed circle of the base portion in plan view, so that the user is less likely to hit the article placement portion against a wall or the like while the cart device is traveling.

[0004] Further, Patent Document 2 discloses a cart device provided with a plurality of article placement portions at one height position in the height direction by providing another article placement portion on the opposite side of the article placement portion across the support body.

Prior Art Documents

Patent Documents

[0005]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0006] However, in the cart device described in Patent Document 1, the support extends upward from near the center of the base, making it difficult to increase the surface area of ​​the article placement section within the minimum inclusion circle of the base. Changing the arrangement of the support to near one end of the base allows for an increase in the surface area, but in this case, the mounting strength of the article placement section to the support needs to be increased in order to obtain strength and balance when an article is placed on the article placement section. In this case, the cart device itself becomes heavier, and the manufacturing cost of the cart device increases.

[0007] The cart device described in Patent Document 2 can increase the overall surface area of ​​the item placement area by replacing the item placement section with plate-shaped shelves, but it was difficult to match the height of the shelves. In addition, steps tended to occur between the shelves, making it inconvenient to use.

[0008] This invention was made in consideration of these circumstances, and aims to provide a cart device that expands the surface on which articles can be placed while improving stability. [Means for solving the problem]

[0009] To solve the above problems, this invention proposes the following means. A cart device according to one embodiment of the present invention comprises a base portion that can travel on a floor surface, a support extending upward from the base portion, a mounting portion holder connected to the support portion, a first article mounting portion having a first mounting surface on which an article can be placed, a second article mounting portion positioned in a different location from the first article mounting portion in a plan view and having a second mounting surface adjacent to the first mounting surface on which an article can be placed, and a connecting member connecting the first article mounting portion and the second article mounting portion, wherein at least one of the first article mounting portion and the second article mounting portion is fixed to the mounting portion holder described above.

[0010] With this configuration, the first loading surface of the first item loading section and the second loading surface of the second item loading section, which is positioned differently from the first item loading section in a plan view, are adjacent to each other and connected by a connecting member. Therefore, the cart device can load items stably while widening the loading surface. In addition, a connecting member is provided to connect the first item loading section and the second item loading section. Therefore, even when heavy items are loaded onto the first or second item loading section, it is less likely that a step will occur between the first and second item loading sections.

[0011] In one embodiment of the present invention, the support is surrounded by a composite mounting surface formed by the first mounting surface and the second mounting surface.

[0012] With this configuration, the first and second mounting surfaces form a composite mounting surface, increasing the degree of freedom in the size and shape of the articles that can be placed on it. For example, the composite mounting surface can stably support long and large articles. In addition, since the support is surrounded by the composite mounting surface, it is easy to access the article mounting area of ​​the article being placed.

[0013] In one embodiment of the present invention, the aforementioned mounting part holder comprises a first mounting part holder and a second mounting part holder, wherein the first article mounting part is fixed to the first mounting part holder and the second article mounting part is fixed to the second mounting part holder.

[0014] With this configuration, since the first and second article mounting sections are each fixed to separate mounting section holders, the strength of the first and second article mounting sections can be increased, thereby improving stability.

[0015] In one embodiment of the present invention, the first mounting surface and the second mounting surface form a composite mounting surface, and the composite mounting surface is fitted with a fall-stopping portion that protrudes upward at least a portion of its outer edge.

[0016] With this configuration, a fall-prevention mechanism is attached to the composite mounting surface. Therefore, the possibility of items falling from the item mounting surface when the cart device is moved can be reduced. In addition, by appropriately providing areas with and without fall-prevention mechanisms on the outer edge of the composite mounting surface, items larger than the dimensions of the mounting surface can be placed in the areas without fall-prevention mechanisms.

[0017] In one embodiment of the present invention, the fall prevention portion is provided on the connecting member.

[0018] With this configuration, the fall prevention mechanism is provided on the connecting member, eliminating the need for a separate member for the fall prevention mechanism, thus improving the appearance of the cart device. Furthermore, it eliminates the need to separately attach the connecting member and the fall prevention mechanism, reducing installation time and costs.

[0019] In a cart device according to one embodiment of the present invention, the fall-stopping portion is attached to the outer peripheral edge of the composite mounting surface so as to cover at least the space between the first mounting surface and the second mounting surface.

[0020] With this configuration, the drop-stop portion, which also serves as a connecting member and protrudes upward, is installed to cover the space between the first and second article placement sections. Therefore, high strength can be obtained against the bending force applied to the connecting member by the weight of the first and second article placement sections.

[0021] In one embodiment of the present invention, the first article placement section and the second article placement section are capable of changing their vertical height relative to the support.

[0022] This configuration allows the height of the item placement area to be adjusted according to the size and height of the item being placed. This makes it easier for users to place and remove items from the item placement area. [Effects of the Invention]

[0023] According to the present invention, it is possible to provide a cart device that improves stability while expanding a placement surface on which an article can be placed.

Brief Description of the Drawings

[0024] [Figure 1] It is a perspective view schematically showing a cart device according to a first embodiment of the present invention. [Figure 2] It is a side view schematically showing the cart device. [Figure 3] It is an enlarged perspective view of a base portion of a cart body of the cart device. [Figure 4] (a) is a horizontal cross-sectional view of a support base of the cart device. FIG. 3(b) is a front view of the support base of the cart device. [Figure 5] (a) is a plan view showing an upper surface of a top plate of the cart device. (b) is a plan view showing a first upper surface of a first shelf plate portion. (c) is a plan view showing a second upper surface of a second shelf plate portion. [Figure 6] It is a view showing the relationship of the sizes of the top plate, the first shelf plate portion, and the second shelf plate portion when the cart device is viewed from above. [Figure 7] It is a perspective view schematically showing a placement portion holding portion in a state where the second shelf plate portion is removed. [Figure 8] It is a perspective view seen from below in a state where the placement portion holding portion is fixed to the second shelf plate portion.

Modes for Carrying Out the Invention

[0025] (First Embodiment) A first embodiment of the present invention will be described with reference to Figures 1 to 8. In the embodiments and modifications described below, corresponding components will be denoted by the same reference numerals, and descriptions of overlapping parts may be omitted. Furthermore, in the following description, expressions indicating relative or absolute arrangements such as "parallel," "orthogonal," "center," and "coaxial" will not only strictly represent such arrangements, but will also represent states of relative displacement with tolerances or angles and distances that allow the same function to be obtained. In the following drawings, the dimensional scale may be shown differently for each component in order to make them easier to see.

[0026] [Cart device 1] Figure 1 is a schematic perspective view showing a cart device 1 according to one embodiment of the present invention. Figure 2 is a schematic side view showing the cart device 1. As shown in Figures 1 and 2, the cart device 1 is a piece of furniture used in offices and hospitals to carry and transport items such as document files and medicine bottles. The cart device 1 comprises a cart body 2 installed on the floor, a shelf board 3, a storage unit holder 7, and a bumper (cushioning material) 8. In this embodiment, the cart body 2 and the storage unit holder 7 constitute the main body of the furniture of the present invention.

[0027] In the following description, the longitudinal direction of the cart device 1 is the same as the vertical direction Z shown in Figures 1 and 2. The cart device 1 is configured to be movable by having the base portion 20 of the cart body 2, which is the lower end of the lower (downward) Z2, placed on the floor. The side that the user grips the handle 223 (described later) and faces the cart device 1 is referred to as the rear side X2, and the side that pushes the handle 223 to move the cart device 1 is referred to as the front side X1. The direction connecting the rear side X2 and the front side X1 is the direction of travel of the cart device 1 that intersects the vertical direction Z, and is referred to as the front-rear direction X (or depth direction). The direction perpendicular to the front-rear direction X is referred to as the width direction Y. In the width direction Y, one side is referred to as the left side Y1, and the opposite side is referred to as the right side Y2, based on the direction in which the user grips the handle 223 and operates the cart device 1. In this embodiment, the vertical direction Z is the same as the vertical direction, and the front-rear direction and width direction Y are horizontal directions.

[0028] [Cart body 2] The cart body 2 comprises a base section 20, a support base (support) 21, a top plate unit 22, and a lifting operation section 23.

[0029] [Base section 20] Figure 3 is an enlarged perspective view of the base portion 20 of the cart body 2. The base unit 20 is capable of moving on the floor surface. As shown in Figure 3, the base unit 20 comprises a leg rod 201, an intermediate member 202, a caster 203, and a locking part 204.

[0030] The leg rod 201 comprises two front leg rods 201a and two rear leg rods 201b. The two front leg rods 201a are straight and extend forward X1 when viewed from the support base 21, which will be described later. The two rear leg rods 201b are straight and extend rear X2 when viewed from the support base 21. In this embodiment, the rear leg rods 201b are formed to be longer than the front leg rods 201a. The intermediate member 202 connects the bases of the leg rods 201. The casters 203 are attached to the tips of each leg rod 201. The casters 203 move forward toward the front X1 in the front-rear direction X. The locking part 204 locks the casters 203.

[0031] The base portion 20 is the lower end of the cart device 1. The cart device 1 is able to move (travel) as the casters 203 of this base portion 20 roll in contact with the floor surface. Furthermore, the movement of the cart device 1 is restricted by locking the casters 203 with the locking portion 204.

[0032] [Support base (support) 21] Figure 4(a) is a horizontal cross-sectional view of the support base 21, and Figure 4(b) is a front view of the support base 21. As shown in Figures 1 and 2, the support base 21 extends upward (upward) Z1 from the base portion 20. The support base 21 is formed to be extendable and retractable. As shown in Figure 4, the support base 21 has an outer support unit 211 and an inner support unit 212.

[0033] The outer support unit 211 comprises an outer 211a, which is a hollow columnar part erected on the intermediate member 202 of the base part 20, and a shelf column 211b fixed to the outer 211a. The outer 211a has two grooves 211c formed on the front side X1 and the rear side X2 of the cart device 1. These two grooves 211c are formed parallel to each other and each extends in the vertical direction Z. The shelf columns 211b are fitted into each of the grooves 211c of the outer 211a. In other words, in this embodiment, there are a total of four shelf columns 211b, two on the front side X1 and two on the rear side X2 of the cart device 1. Each shelf column 211b has locking holes 211d formed at a constant pitch in the vertical direction Z. These locking holes 211d are the locations into which the locking claws 713a, described later, provided on the mounting bracket 7, are inserted.

[0034] The inner support unit 212 has a hollow columnar portion 212a that is inserted into the outer 211a of the outer support unit 211 and to which the top plate unit 22 is fixed at its upper end, and a roller 212b that is pivotally supported on the side of the columnar portion 212a and abuts against the inner wall surface of the outer 211a of the outer support unit 211. Such an inner support unit 212 is made movable in the vertical direction Z inside the outer 211a of the outer support unit 211 by the rolling of the roller 212b. When the inner support unit 212 protrudes significantly Z1 upward from the outer support unit 211, the support base 21 as a whole is extended, and the top plate unit 22 is positioned at a higher position. On the other hand, when most of the inner support unit 212 is housed in the outer support unit 211, the support base 21 as a whole is retracted, and the top plate unit 22 is positioned at a lower position.

[0035] [Tabletop Unit 22] As shown in Figures 1 and 2, the top plate unit 22 comprises a top plate 221, a fall prevention bar 222, and a handle (grip portion) 223.

[0036] [Tabletop 221] The top plate 221 is a substantially rectangular plate member supported by the support base 21. Specifically, the top plate 221 is supported by the support base 21 by being fixed to the upper end of the columnar portion 212a of the inner support unit 212. The top plate 221 has an outer peripheral edge portion 221m, which is the periphery of the top plate 221, and a top surface 221a on which an item can be placed.

[0037] The fall prevention bar 222 is located above the top plate unit 22 and is supported on the front side X1 of the top plate unit 22, and is bent along the edge of the top plate unit 22. This fall prevention bar 222 prevents items placed on the top plate 221 from sliding on the top plate 221 and falling off the front side X1 of the top plate 221 when, for example, the cart device 1 stops from moving.

[0038] The handle (grip portion) 223 is formed in a roughly annular shape and is provided projecting from the rear end of the outer peripheral edge 221m of the top plate 221 toward the rear X2. This handle 223 is the part that the operator grips when moving the cart device 1.

[0039] [Lifting / Lowering Operation Unit 23] The lifting operation unit 23 includes an operating lever 231 and a locking mechanism (not shown). The operating lever 231 is located on the lower side Z2 of the handle 223 (see Figure 2), and operating it releases the lock on the inner support unit 212 by the locking mechanism. The locking mechanism fixes the inner support unit 212 to the outer support unit 211. The locking mechanism releases the lock only when the operating lever 231 is operated. The support base 21 is made extendable and retractable by this lifting operation unit 23. The top plate 221, supported by the support base 21, moves up and down in the vertical direction Z in accordance with the extension and retraction of the support base 21, and can be positioned at any desired height. With this configuration, users can easily place and remove items by adjusting the height of the top plate 221 to match their own height.

[0040] [Shelf board 3] As shown in Figures 1 and 2, the shelf board 3 comprises a first shelf board section 4 and a second shelf board section 5.

[0041] [First shelf section 4] The first shelf section 4 is a substantially rectangular plate member supported by the support base 21. The first shelf section 4 is provided on the lower side Z2 of the top plate 221. The first shelf section 4 comprises an outer peripheral edge 4m which is the periphery of the first shelf section 4, a first front shelf (first item placement section) 41, and a first rear shelf (second item placement section) 42.

[0042] [First front shelf (first item placement section) 41] The first front shelf (first item placement section) 41 is a plate member attached to the front X1 of the support base 21. The first front shelf 41 has a first front surface (first placement surface) 41a on which an item can be placed. The first front shelf 41 has a notch cut out at its rear end X2 to match the shape of the side surface of the support base 21.

[0043] [First rear shelf (second item placement section) 42] The first rear shelf (second item placement section) 42 is a substantially rectangular plate member attached to the rear X2 of the support base 21 and to the rear X2 of the first front shelf 41. In plan view, the first rear shelf 42 does not overlap with the first front shelf 41 and is positioned at a different location from the first front shelf 41 (see Figure 5). The first rear shelf 42 has a first rear surface (second placement surface) 42a on which items can be placed. The first rear shelf 42 has a notch cut out at its front end X1 to match the shape of the side surface of the support base 21.

[0044] The first rear surface 42a is larger (wider) than the first front surface 41a. Specifically, the overall length of the first rear surface 42a in the width direction Y is approximately the same as the overall length of the first front surface 41a in the width direction Y, but the overall length in the front-to-back direction X is longer than the overall length of the first front surface 41a in the front-to-back direction X. Also, the area of ​​the first rear surface 42a is larger than the area of ​​the first front surface 41a.

[0045] The first front surface 41a and the first rear surface 42a are connected, forming a composite mounting surface along the plane formed by the front-to-back direction X and the width direction Y. This composite mounting surface is referred to as the first upper surface 4a. In other words, the first shelf section 4 has a first upper surface 4a on which articles can be placed. The first shelf section 4 also has a through hole 4b formed by the notches in the first front surface 41a and the first rear surface 42a. Note that the first front surface 41a and the first rear surface 42a may be adjacent with a gap or other space between them.

[0046] [Second shelf section 5] The second shelf section 5 is a substantially rectangular plate member supported by the support base 21. The second shelf section 5 is provided below the top plate 221 and the first shelf section 4 (Z2). The second shelf section 5 comprises an outer peripheral edge 5m, which is the periphery of the second shelf section 5, a second front shelf (first item placement section) 51, a second rear shelf (second item placement section) 52, and a bumper 8. The outer peripheral edge 5m has two corners each on the front side X1 and the rear side X2 in the front-rear direction X.

[0047] [Second front shelf (first item placement section) 51] The second front shelf (first item placement section) 51 is a substantially rectangular plate member attached to the front X1 of the support base 21. The second front shelf 51 has a front end 51m, which is the front end of the second shelf section 5 and is provided at the front end of the front X1, and a second front surface (first placement surface) 51a on which items can be placed. The front end 51m is part of the outer peripheral edge 5m. The front end 51m extends in the width direction Y, and both ends of the front end 51m are the two corners of the front X1 provided on the outer peripheral edge 5m in the front-rear direction X. The second front shelf 51 has a notch at the rear end X2 that is cut to match the shape of the side surface of the support base 21.

[0048] [Second rear shelf (second item placement section) 52] The second rear shelf (second item placement section) 52 is a substantially rectangular plate member attached to the rear X2 of the support base 21 and the rear X2 of the second front shelf 51. In plan view, the second rear shelf 52 does not overlap with the second front shelf 51 and is positioned differently from the second front shelf 51 (see Figure 5). The second rear shelf 52 has a rear end 52m, which is the rear end of the second shelf section 5 and is provided at the rear end of the rear X2, and a second rear surface (second placement surface) 52a on which items can be placed. The rear end 52m is part of the outer peripheral edge 5m. The rear end 52m extends in the width direction Y, and both ends of the rear end 52m are the two corners of the rear X2 provided on the outer peripheral edge 5m in the front-rear direction X. The second rear shelf 52 has a notch at the end of the front X1 cut to match the shape of the side surface of the support base 21.

[0049] The second rear surface 52a is larger than the second front surface 51a. Specifically, the overall length of the second rear surface 52a in the width direction Y is approximately the same as the overall length of the second front surface 51a in the width direction Y, but the overall length in the front-to-back direction X is longer than the overall length of the second front surface 51a in the front-to-back direction X. Also, the area of ​​the second rear surface 52a is larger than the area of ​​the second front surface 51a.

[0050] The second front surface 51a and the second rear surface 52a are connected, forming a composite mounting surface along the plane formed by the front-to-back direction X and the width direction Y. This composite mounting surface is referred to as the second upper surface 5a. In other words, the second shelf section 5 has a second upper surface 5a on which articles can be placed. The second upper surface 5a is formed substantially parallel to the first upper surface 4a. The second shelf section 5 also has through holes 5b formed by the notches in the second front surface 51a and the second rear surface 52a. Note that the second front surface 51a and the second rear surface 52a may be adjacent with a gap or other space between them.

[0051] The support base 21 is inserted through the through holes 4b and 5b. That is, the support base 21, which is inserted through the through holes 4b and 5b, is surrounded by a first upper surface 4a formed by a first front surface 41a and a first rear surface 42a, and a second upper surface 5a formed by a second front surface 51a and a second rear surface 52a. The first shelf section 4 and the second shelf section 5 are each mounted on the cart body 2 so that their position in the vertical Z direction can be changed.

[0052] [Bumper (cushioning material) 8] The bumper (cushioning material) 8 is attached to the second shelf section 5, as shown in Figures 1 and 2. Specifically, the bumper 8 has its center attached to both ends of the front end 51m and rear end 52m, which are the four corners provided on the outer edge 5m. The bumper 8 has a central axis that passes through both ends of the front end 51m and rear end 52m in the vertical direction Z. However, the placement position of the bumper 8 is not particularly limited.

[0053] The bumper 8 is elastically deformable, and a conventionally known type is used. The bumper 8 is formed in the shape of a disc with a central axis in the vertical direction Z, and rotates around the central axis.

[0054] Here, the top plate 221, the first shelf section 4, and the second shelf section 5 are all of different sizes. The sizes of the top plate 221, the first shelf section 4, and the second shelf section 5 and their relationships to each other will be explained below.

[0055] Figure 5(a) is a plan view showing the top surface 221a of the top plate 221, Figure 5(b) is a plan view showing the first top surface 4a of the first shelf section 4, and Figure 5(c) is a plan view showing the second top surface 5a of the second shelf section 5. Figure 6 is a diagram showing the relationship between the sizes of the top plate 221, the first shelf section 4, and the second shelf section 5 when the cart device 1 is viewed from above.

[0056] First, as shown in Figure 5(a), the top plate 221 is formed in a rectangular shape with two short sides facing each other in the front-to-back direction X and two long sides facing each other in the width direction Y. Of the two short sides facing each other in the front-to-back direction X, the front side X1 is designated as side 221c and the rear side X2 is designated as side 221d. Also, of the two short sides facing each other in the width direction Y, the left side Y1 is designated as side 221e and the right side Y2 is designated as side 221f. These sides 221c, 221d, 221e, and 221f constitute the outer peripheral edge 221pa of the top surface 221a of the top plate. The outer peripheral edge 221pa is part of the outer peripheral edge portion 221m of the top plate 221.

[0057] In the front-to-back direction X, the total length of the top plate 221 connecting sides 221c and 221d of the top plate surface 221a is length L1, and in the width direction Y, the total length of the top plate 221 connecting sides 221e and 221f of the top plate surface 221a is length M1. In this embodiment, the maximum length of the line connecting two points on the outer edge 221pa of the first mounting surface 221a is the diagonal of the first mounting surface 221a. In this case, the diagonal of the top plate surface 221a is length N1.

[0058] Next, as shown in Figure 5(b), the first shelf section 4 is formed in a rectangular shape with two short sides facing each other in the front-to-back direction X and two long sides facing each other in the width direction Y. Here, of the two short sides facing each other in the front-to-back direction X, one side of the front X1 is designated as side 4c, and one side of the rear X2 is designated as side 4d. Also, of the two short sides facing each other in the width direction Y, one side of the left Y1 is designated as side 4e, and one side of the right Y2 is designated as side 4f. These sides 4c, 4d, 4e, and 4f constitute the first upper outer edge (outer edge) 4pa of the first upper surface 4a. The first upper outer edge 4pa is part of the outer edge 4m of the first shelf section 4.

[0059] In the front-to-back direction X, the total length of the first shelf portion 4 connecting sides 4c and 4d of the first upper surface 4a is length L2, and in the width direction Y, the total length of the first shelf portion 4 connecting sides 4e and 4f of the first upper surface 4a is length M2. In this embodiment, the maximum length of the line connecting two points on the outer peripheral edge 4pa of the first upper surface 4a is the diagonal of the first upper surface 4a. In this case, the diagonal of the first upper surface 4a is length N2.

[0060] Next, as shown in Figure 5(c), the second shelf section 5 is formed in a rectangular shape with two short sides facing each other in the front-to-back direction X and two long sides facing each other in the width direction Y. Here, of the two short sides facing each other in the front-to-back direction X, the front side X1 is designated as side 5c and the rear side X2 is designated as side 5d. Also, of the two short sides facing each other in the width direction Y, the left side Y1 is designated as side 5e and the right side Y2 is designated as side 5f. These sides 5c, 5d, 5e, and 5f constitute the second upper outer edge (outer edge) 5pa of the second upper surface 5a. The second upper outer edge 5pa is part of the outer edge 5m of the second shelf section 5.

[0061] In the front-to-back direction X, the maximum length of the second shelf portion 5 connecting sides 5c and 5d of the second upper surface 5a is length L3, and in the width direction Y, the maximum length of the second shelf portion 5 connecting sides 5e and 5f of the second upper surface 5a is length M3. In this embodiment, the maximum length of the line connecting two points on the outer peripheral edge 5pa of the second upper surface 5a is the diagonal of the second upper surface 5a. In this case, the diagonal of the second upper surface 5a is length N3.

[0062] In the front-rear direction X, the length L1 is shorter than the lengths L2 and L3. The length L2 is shorter than the length L3. That is, in the front-rear direction X, the top plate 221, the first shelf plate portion 4, and the second shelf plate portion 5 have a length relationship of L1 < L2 < L3. In other words, the first shelf plate portion 4 has an overall length that is longer than the overall length of the top plate 221 in the front-rear direction X. The second shelf plate portion 5 has an overall length that is longer than the overall length of the first shelf plate portion 4 in the front-rear direction X.

[0063] Also, in the width direction Y, the length M1 is shorter than the lengths M2 and M3. The length M2 is shorter than the length M3. That is, in the width direction Y, the top plate 221, the first shelf plate portion 4, and the second shelf plate portion 5 have a length relationship of M1 < M2 < M3. In other words, the first shelf plate portion 4 has an overall length that is longer than the overall length of the top plate 221 in the width direction Y. The second shelf plate portion 5 has an overall length that is longer than the overall length of the first shelf plate portion 4 in the width direction Y.

[0064] Also, at the maximum length of each of the top plate 221, the first shelf plate portion 4, and the second shelf plate portion 5, the length N1 is shorter than the lengths N2 and N3. The length N2 is shorter than the length N3. That is, the top plate 221, the first shelf plate portion 4, and the second shelf plate portion 5 have a maximum length relationship of N1 < N2 < N3.

[0065] From the above, as shown in FIG. 5, it can be seen that the top surface 221a of the top plate 221 is smaller than the first upper surface 4a and the second upper surface 5a. Specifically, the outer peripheral edge 221pa of the top surface 221a completely overlaps with the first upper surface 4a when viewed from the vertical direction Z. Also, it can be seen that the first upper surface 4a of the first shelf plate portion 4 is smaller than the second upper surface 5a. Specifically, the outer peripheral edge 4pa of the first upper surface 4a completely overlaps with the second upper surface 5a when viewed from the vertical direction Z.

[0066] Also, the size of the first area P1 surrounded by the outer peripheral edge 221pa of the top plate upper surface 221a is smaller than the size of the second area P2 surrounded by the outer peripheral edge 4pa of the first upper surface 4a and the size of the third area P3 surrounded by the outer peripheral edge 5pa of the second upper surface 5a. The size of the second area P2 is smaller than the size of the third area P3. That is, the relationship among the first area P1, the second area P2, and the third area P3 is P1 < P2 < P3. In other words, as shown in FIG. 6, the area PA2 excluding the portion where the second upper surface 5a overlaps the top plate upper surface 221a is larger than the area PA1 excluding the portion where the first upper surface 4a overlaps the top plate upper surface 221a. In the present embodiment, as shown in FIG. 2, the placement surface on which articles provided in the cart device 1 can be placed becomes larger as it goes from the upper side Z1 to the lower side Z2 when viewed from the width direction Y.

[0067] Here, as shown in FIGS. 2 and 6, the side 4c on the front side X1 of the first upper surface 4a is arranged on the front side X1 by a distance S11 from the side 221c of the top plate upper surface 221a. In other words, there is a distance difference of S11 between the side 4c and the side 221c. In the present embodiment, as shown in FIG. 6, the distance S11 is the same as the distance from the foremost end portion on the front side X1 of the outer peripheral edge portion 4m of the first shelf plate portion 4 to the foremost end portion on the front side X1 of the outer peripheral edge portion 221m of the top plate 221 when viewed from the vertical direction Z.

[0068] Also, the side 5c on the front side X1 of the second upper surface 5a is arranged on the front side X1 by a distance S12 from the side 4c of the first upper surface 4a. In other words, there is a distance difference of S12 between the side 5c and the side 5c. In the present embodiment, as shown in FIG. 6, the distance S12 is the same as the distance from the foremost end portion on the front side X1 of the outer peripheral edge portion 5m of the second shelf plate portion 5 to the foremost end portion on the front side X1 of the outer peripheral edge portion 4m of the first shelf plate portion 4 when viewed from the vertical direction Z. Also, in the present embodiment, the length of the distance S11 and the length of the distance S12 are the same. The lengths of the distance S11 and the distance S12 are not particularly limited, but in the present embodiment, they are set to 3 to 4 cm.

[0069] Furthermore, the rear edge X2 side 4d of the first upper surface 4a is positioned at a distance S21 further back X2 than the edge 221d of the top plate upper surface 221a. In other words, there is a distance difference of S21 between edge 4d and edge 221d when viewed from the vertical direction Z. In this embodiment, as shown in Figure 6, the distance S21 is the same as the distance from the rearmost end of the rear edge X2 on the outer peripheral edge 4m of the first shelf plate 4 to the rearmost end of the rear edge X2 on the outer peripheral edge 221m of the top plate 221 when viewed from the vertical direction Z.

[0070] Furthermore, the rear edge X2 of the second upper surface 5a, edge 5d, is positioned at a distance S22 further back X2 than the edge 4d of the first upper surface 4a. In other words, there is a distance difference of S22 between edge 5d and edge 4d. In this embodiment, as shown in Figure 6, distance S22 is the same as the distance from the rearmost end of the rear edge X2 on the outer peripheral edge 5m of the second shelf portion 5 to the rearmost end of the rear edge X2 on the outer peripheral edge 4m of the first shelf portion 4, when viewed from the vertical direction Z. Also, in this embodiment, the length of distance S21 and the length of distance S22 are the same. The lengths of distances S21 and S22 are not particularly limited, but in this embodiment they are set to 2-3 cm.

[0071] The length of distance S11 is longer than the length of distance S21. Also, the length of distance S12 is longer than the length of distance S22. In other words, as shown in Figure 2, when viewed from the width direction Y, the first shelf section 4 and the second shelf section 5 protrude significantly more towards the front X1 than towards the rear X2 in the front-to-back direction X relative to the top plate 221.

[0072] The first upper surface 4a is provided so as to surround the support base 21, and the area of ​​the first upper surface 4a is reduced by the amount of the through hole 4b through which the support base 21 is inserted. Similarly, the second upper surface 5a is also provided so as to surround the support base 21, and the area of ​​the second upper surface 5a is reduced by the amount of the through hole 5b through which the support base 21 is inserted. However, in this embodiment, the area of ​​the first upper surface 4a is larger than the area of ​​the top surface 221a of the top plate 221, and the area of ​​the second upper surface 5a is set to be even larger than the area of ​​the first upper surface 4a.

[0073] [Connecting member 6] As shown in Figures 1 and 2, the connecting member 6 is a member that is attached to the shelf board 3. The connecting member 6 comprises a first connecting member 61 and a second connecting member 62.

[0074] [First connecting member 61] The first connecting member 61 is a connecting member that extends in the front-rear direction X. Two first connecting members 61 are attached to both sides in the width direction Y on the outer peripheral edge 4m of the first shelf section 4. The first connecting member 61 connects the first front shelf 41 and the first rear shelf 42 of the first shelf section 4. The first connecting member 61 comprises a connecting plate portion 610 and a fall-stopping portion 611.

[0075] The connecting plate portion 610 is a plate-shaped member having a front and back surface in the vertical direction Z and extending in the front-rear direction X. The upper surface Z1 of the connecting plate portion 610 abuts against the lower surface of the first front shelf 41 and the lower surface of the first rear shelf 42 from the lower surface Z2. The connecting plate portion 610 is fixed to the first front shelf 41 and the first rear shelf 42, for example, by attaching bolts or the like from the back surface.

[0076] The fall-stopping portion 611 is connected to the side surface of the connecting plate portion 610 in the width direction Y. Specifically, when the first connecting member 61 is attached to the left side Y1 in the width direction Y on the outer peripheral edge 4m of the first shelf portion 4, the fall-stopping portion 611 is connected to the side surface of the connecting plate portion 610 on the left side Y1 in the width direction Y. Also, when the first connecting member 61 is attached to the right side Y2 in the width direction Y on the outer peripheral edge 4m of the first shelf portion 4, the fall-stopping portion 611 is connected to the side surface of the connecting plate portion 610 on the right side Y2 in the width direction Y.

[0077] The fall-stopping portion 611 protrudes upward toward Z1 from the first upper outer edge 4pa of the first upper surface 4a of the first shelf plate portion 4. The fall-stopping portion 611 is attached to the first upper outer edge 4pa of the first upper surface 4a so as to cover the space between the first front surface 41a and the first rear surface 42a. In other words, in this embodiment, the fall-stopping portion 611 is provided at least at the joint 4s (see Figure 5) provided between the first front surface 41a and the first rear surface 42a. Note that the joint 4s may be a gap instead of a joint.

[0078] The first connecting member 61 may be attached around the entire circumference of the outer edge 4m, or a gap may be provided between two first connecting members 61. For example, the first connecting member 61 has a gap 61s in the front-rear direction X. By providing a gap 61s, when a long or large item is placed on the first upper surface 4a of the first shelf 4, the fall-stopping part 611 does not interfere, making it easy to place the item. The first connecting member 61 may also be fixed to the mounting part holding part 7, which will be described later.

[0079] [Second connecting member 62] The second connecting member 62 is a connecting member that extends in the front-rear direction X. Two second connecting members 62 are attached to both sides in the width direction Y on the outer peripheral edge 5m of the second shelf section 5. The second connecting member 62 connects the second front shelf 51 and the second rear shelf 52 of the second shelf section 5. The second connecting member 62 comprises a connecting plate portion 620 and a fall-stopping portion 621.

[0080] The connecting plate portion 620 is a plate-shaped member having a front and back surface in the vertical direction Z and extending in the front-rear direction X. The upper surface Z1 of the connecting plate portion 620 abuts against the lower surface of the second front shelf 51 and the lower surface of the second rear shelf 52 from the lower surface Z2 (see Figure 8). The connecting plate portion 620 is fixed to the second front shelf 51 and the second rear shelf 52, for example, by attaching bolts from the back surface.

[0081] The fall-stopping portion 621 is connected to the side surface of the connecting plate portion 620 in the width direction Y. Specifically, when the second connecting member 62 is attached to the left side Y1 in the width direction Y on the outer peripheral edge 5m of the second shelf portion 5, the fall-stopping portion 621 is connected to the side surface of the connecting plate portion 620 on the left side Y1 in the width direction Y. Also, when the second connecting member 62 is attached to the right side Y2 in the width direction Y on the outer peripheral edge 5m of the second shelf portion 5, the fall-stopping portion 611 is connected to the side surface of the connecting plate portion 620 on the right side Y2 in the width direction Y.

[0082] The fall-stopping portion 621 protrudes upward toward Z1 from the outer peripheral edge 5pa of the second upper surface 5a of the second shelf portion 5. The fall-stopping portion 621 is attached to the outer peripheral edge 5pa of the second upper surface 5a so as to cover the space between the second front surface 51a and the second rear surface 52a. In other words, in this embodiment, the fall-stopping portion 621 is provided at least in the joint 5s (see Figure 5) provided between the second front surface 51a and the second rear surface 52a. Note that the joint 5s may be a gap instead of a joint.

[0083] The second connecting member 62 may be attached around the entire circumference of the outer edge 5m, or a gap may be provided between the two second connecting members 62. For example, the second connecting member 62 has a gap 62s in the front-rear direction X. By providing a gap 62s, the second connecting member 62 can easily place long items on the second upper surface 5a of the second shelf board 5 without interference from the fall-stopping part 621. The second connecting member 62 may also be fixed to the mounting part holding part 7, which will be described later.

[0084] [Mounting part holding part (bracket) 7] Figure 7 is a schematic perspective view showing the mounting bracket 7 with the second shelf 5 removed. Figure 8 is a perspective view from below showing the mounting bracket 7 fixed to the second shelf 5. As shown in Figures 2, 7, and 8, the mounting bracket 7 is a mechanism that supports the shelf board 3. In this embodiment, the mounting bracket 7 is provided on the lower side Z2 of the first shelf board 4 and the lower side Z2 of the second shelf board 5, respectively, and detachably supports (fixes) the first shelf board 4 and the second shelf board 5.

[0085] In this embodiment, each shelf board 3 is fixed by its respective mounting bracket 7. Here, the mounting bracket 7 supporting the first shelf board 4 has the same configuration as the mounting bracket 7 supporting the second shelf board 5, except that the height in the vertical direction Z where it is positioned is different. Therefore, in the following description, only the mounting bracket 7 supporting the second shelf board 5 will be described. However, the size and shape of the mounting bracket 7 supporting the first shelf board 4 may differ from the mounting bracket 7 supporting the second shelf board 5.

[0086] The mounting part holder (bracket) 7 comprises a first mounting part holder (first bracket) 71 and a second mounting part holder (second bracket) 72.

[0087] [First mounting part holding part (first bracket) 71] The first mounting section holder 71 is positioned X1 in front of the support base 21 and below Z2 the second front shelf (first item mounting section) 51 of the second shelf section 5. The first mounting section holder 71 detachably supports (fixes) the second front shelf 51 from the support base 21.

[0088] As shown in Figure 7, the first mounting part holding part 71 comprises a front base part 710a and a front bracket part 711a.

[0089] The front base portion 710a serves as the base for attaching the second front shelf 51. The front base portion 710a is attached and fixed to the second front shelf 51, for example, with bolts. In this embodiment, the front base portion 710a is formed by arranging a plurality of straight channels or rail members in the width direction. The size and shape of the front base portion 710a are not particularly limited, but a configuration in which it is not visible from above Z1 (does not protrude) from the second front shelf 51 is preferred. The front base portion 710a may also be in the shape of a plate.

[0090] As shown in Figures 7 and 8, the front bracket portion 711a is provided on the lower side Z2 of the front base portion 710a. Multiple front bracket portions 711a are attached to the second front shelf 51 via the front base portion 710a. In this embodiment, two front bracket portions 711a are provided, each extending from the support base 21 toward each end of the front end portion 51m of the second front shelf 51. Hereinafter, in the following description, one of the multiple front bracket portions 711a will be described, and the configurations of the other front bracket portions 711a will be omitted from the description, assuming that they have similar configurations according to the appropriately set direction.

[0091] As shown in Figure 8, the front bracket portion 711a has an insertion portion 713 that is fixed to the support base 21 of the cart body 2, and an arm 714 that extends from the insertion portion 713 toward the support base 21.

[0092] As shown in Figure 8, the insertion portion 713 is a plate-shaped member formed along a vertical plane in the vertical direction Z and the front-rear direction X. The insertion portion 713 has a locking claw (locking part) 713a at the end facing the support base 21. In this embodiment, three locking claws 713a are formed, arranged in the vertical direction Z. The arrangement pitch of these locking claws 713a in the vertical direction Z is the same as the arrangement pitch of the locking holes 211d (see Figure 4; the same applies hereinafter) of the shelf posts 211b (see Figure 4; the same applies hereinafter) of the cart body 2 (see Figure 4; the same applies hereinafter), and they are insertable into the locking holes 211d. Furthermore, the locking claws 713a inserted into the locking holes 211d are locked to the shelf posts 211b by moving them downward Z2. This fixes the front bracket portion 711a (i.e., the first mounting portion holding portion 71) to the cart body 2. Furthermore, the front bracket portion 711a (i.e., the first mounting portion holding portion 71), which is fixed to the cart body 2, can be removed from the cart body 2 by lifting it up, which causes the locking claw 713a to separate from the shelf column 211b.

[0093] As described above, the shelf post 211b has multiple locking holes 211d formed in the vertical direction Z. Therefore, the front bracket portion 711a (i.e., the first mounting portion holder portion 71) can fix the front base portion 710a to any position in the height direction (vertical direction Z) of the support base 21. In other words, in this embodiment, the first mounting portion holder portion 71 can be attached to any position on the shelf post 211b, which is provided within a certain range of the support base 21, which is part of the cart body 2. To put it another way, the height position of the second front shelf board 51 fixed to the first mounting portion holder portion 71 can be changed in the vertical direction Z relative to the support base 21.

[0094] As shown in Figure 8, the arm 714 extends from the insertion portion 713 to both ends of the front end portion 51m provided by the second front shelf plate 51. The arm 714 is formed in a plate shape having vertical planes along the vertical direction Z and the direction facing the corners of both ends of the front end portion 51m as viewed from the support base 21, and its upper end is fixed to the lower surface of the front base portion 710a. The arm 714 supports the front base portion 710a from below Z2. In this embodiment, the arm 714 is fixed to the front base portion 710a with bolts or the like.

[0095] [Second mounting part holding part (second bracket) 72] The second mounting section holder 72 is positioned X2 behind the support base 21 and below Z2 the second rear shelf (second item mounting section) 52 of the second shelf section 5. The second mounting section holder 72 detachably supports (fixes) the second rear shelf 52 from the support base 21.

[0096] As shown in Figure 7, the second mounting portion holding portion 72 comprises a rear base portion 710b and a rear bracket portion 711b. The rear base portion 710b has the same configuration as the front base portion 710a, except for its position. In this embodiment, there are two rear bracket portions 711b, each extending from the support base 21 toward the respective ends of the rear end portion 52m of the second rear shelf 52. The rear bracket portion 711b has the same structure as the front bracket portion 711a, except that its longitudinal length is slightly longer than that of the front bracket portion 711a. The second rear shelf 52, which is fixed to the second mounting portion holding portion 72, can have its height position in the vertical direction Z relative to the support base 21 changed.

[0097] (action) Next, we will explain the operation of the cart device 1.

[0098] The cart device 1 is used by users to place items on it. The cart device 1 is equipped with a top surface 221a of the top plate 221 on which items can be placed, a first top surface 4a of the first shelf section 4, and a second top surface 5a of the second shelf section 5. Therefore, users can place items on any of the top surface 221a, the first top surface 4a, or the second top surface 5a.

[0099] Furthermore, the user can grasp the handle 223 of the top plate unit 22 and move the cart device 1 forward in the front direction X1 of the forward-backward direction X, which is the direction of travel. At this time, the casters 203 roll with their center of gravity positioned behind X2 of the tips of each leg rod 201. Also, as shown in Figure 2, the foremost end of the front X1 of the cart device 1 is the front end 51m of the second front shelf 51 of the second shelf section 5.

[0100] Furthermore, the user can also move the cart device 1 backward towards the rear X2 in the front-rear direction X. In this case, the casters 203 roll with their center of gravity positioned forward X1 of the tips of each leg rod 201. The rearmost end of the rear X2 of the cart device 1 is the rear end 52m of the second rear shelf 52 of the second shelf section 5, as shown in Figure 2.

[0101] The second shelf section 5 is provided with bumpers 8 attached to the center of both ends of the front end 51m and both ends of the rear end 52m of the outer peripheral edge 5m. Therefore, even if a user misoperates the cart device 1 facing the direction of travel and hits the cart device 1 against a wall or the like, the bumpers 8 attached to the front end 51m of the second front shelf 51 or the rear end 52m of the second rear shelf 52 of the second shelf section 5, which are located outside the minimum inclusion circle of the base section when viewed from above, will make contact first, preventing damage to other parts of the cart device 1. The bumpers 8 can also prevent damage to the wall that the cart device 1 hits. Furthermore, in this embodiment, the bumpers 8 rotate around an axis along the vertical direction Z. Therefore, even if a user misoperates the cart device 1 while moving it in the forward / backward direction X and hits a wall or the like, and then moves the cart device 1 to rub against the wall, the bumpers 8 that hit the wall will rotate around the axis along the vertical direction Z. Therefore, the bumper 8 can rotate without being dragged against the wall, reducing damage to the wall.

[0102] In this embodiment, the cart device 1 comprises a first front shelf (first item placement section) 41 having a first front surface (first placement surface) 41a, a first rear shelf (second item placement section) 42 positioned differently from the first front shelf 41 in a plan view and having a first rear surface (second placement surface) 42a connected to (adjacent to) the first front surface 41a on which items can be placed, and a first connecting member (connecting member) 61 connecting the first front shelf 41 and the first rear shelf 42. Therefore, the cart device 1 can widen the placement surface while stably placing items. Furthermore, because a first connecting member 61 is provided to connect the first front shelf 41 and the first rear shelf 42, even when heavy items are placed on the first front shelf 41 or the first rear shelf 42, it is less likely that a step will occur between the first front shelf 41 and the first rear shelf 42.

[0103] Furthermore, in this embodiment, the support base 21 is surrounded by a first upper surface (composite mounting surface) 4a formed by the first front surface 41a and the first rear surface 42a. Therefore, the degree of freedom in the size and shape of the article that can be placed on the first upper surface 4a is increased. For example, the first upper surface 4a can stably support long or large articles. Also, because the support base 21 is surrounded by the first upper surface 4a, it is easy to access the article mounting portion of the article to be placed.

[0104] Furthermore, in this embodiment, the second front shelf (first item placement section) 51 of the second shelf section 5 is fixed to the first placement section holding section 71, and the second rear shelf (second item placement section) 52 is fixed to the second placement section holding section 72. Therefore, the strength of the second front shelf 51 and the second rear shelf 52 can be increased, improving stability.

[0105] Furthermore, in this embodiment, the first front surface (first mounting surface) 41a and the first rear surface (second mounting surface) 42a form a first upper surface (composite mounting surface) 4a, and a fall-stopping portion 611 is attached to the first upper surface 4a, projecting upward towards Z1 from the outer peripheral edge 4pa of the first upper surface. Therefore, when the cart device 1 is moved, the possibility of items falling from the mounting surface can be reduced. In addition, by appropriately providing portions with and without the fall-stopping portion 611 on the outer peripheral edge 4pa of the first upper surface 4a, items with a length greater than the dimensions of the mounting surface can be placed in the portion without the fall-stopping portion 611.

[0106] Furthermore, in this embodiment, the fall-prevention part 611 is provided on the first connecting member (connecting member) 61. Therefore, the cart device 1 does not need to provide a separate member for the fall-prevention part, improving the appearance of the cart device 1. In addition, it is not necessary to attach the connecting member and the fall-prevention part 611 separately, which reduces installation time and costs.

[0107] Furthermore, in this embodiment, the fall-stopping portion 611 is attached to the first upper outer edge 4pa of the first upper surface 4a so as to cover the space between the first front surface 41a and the first rear surface 42a. As a result, the cart device 1 can obtain high strength against the bending force applied to the first connecting member 61 by the weight of the first front shelf 41 and the first rear shelf 42.

[0108] Furthermore, in this embodiment, the height position of the second front shelf 51 and the second rear shelf 52 can be changed in the vertical Z direction relative to the support base 21. Therefore, the height of the item placement section can be changed according to the size and height of the items to be placed, making it easier for users to place and remove items from the item placement section.

[0109] Although the first embodiment of the present invention has been described in detail above with reference to the drawings, the specific configuration is not limited to this embodiment, and design changes and the like are also included within the scope of the gist of the present invention. Furthermore, the components shown in the above embodiment and the modifications shown below can be combined as appropriate.

[0110] (modified version) In the embodiment described above, the first front shelf 41 (first item placement section) and the first rear shelf 42 (first item placement section) are each fixed to the placement section holding section 7. However, this is not particularly limited, and it is sufficient if at least one of the first front shelf 41 and the first rear shelf 42 is fixed to the placement section holding section 7. In this case as well, since the first connecting member 61 connects the first front shelf 41 and the first rear shelf 42, both the first front shelf 41 and the first rear shelf 42 can be supported by the support base 21 via either member. The same applies to the second front shelf 51 and the second rear shelf 52.

[0111] For example, the first shelf portion 4 according to the present invention only needs to have an overall length that is longer than the overall length of the top plate 221 in the front-to-back direction X, and an overall length that is longer than the overall length of the top plate 221 in the width direction Y.

[0112] Furthermore, the first shelf portion 4 and the second shelf portion 5 according to the present invention may be box-shaped storage portions having an outer edge that protrudes upward Z1.

[0113] Furthermore, the shapes of the top plate 221, the first shelf portion 4, and the second shelf portion 5 according to the present invention do not have to be rectangular. For example, the shapes of the top plate 221, the first shelf portion 4, and the second shelf portion 5 can be circular, triangular, trapezoidal, rhombus, or any other arbitrary shape. Also, the shapes of the first shelf portion 4 and the second shelf portion 5 may be different in shape and size.

[0114] The shelf board 3 is not limited to the first shelf board section 4 and the second shelf board section 5. The shelf board 3 may have only one shelf board section or may have multiple shelf board sections.

[0115] Furthermore, in the cart device 1 according to the present invention, as shown in Figure 2, the overall lengths of the top plate 221, the first shelf section 4, and the second shelf section 5 increase in that order in the front-to-back direction X, but this is not particularly limited. For example, in the front-to-back direction X, the overall length of the first shelf section 4 may be longer than the overall length of the second shelf section 5 and shorter than the overall length of the top plate 221. Also, the overall length of the first shelf section 4 may be longer than the overall lengths of both the top plate 221 and the second shelf section 5. The same applies in the width direction Y.

[0116] Furthermore, the bumper (cushioning material) 8 according to the present invention does not necessarily have to be positioned at both ends of the front end 51m and both ends of the rear end 52m of the outer peripheral edge 5m of the second shelf portion 5. For example, the bumper may be provided on the top plate 221, the first shelf portion 4, or the base portion 20. The number of bumpers 8 is not particularly limited.

[0117] In any of the above embodiments, the cart device according to the present invention can provide a cart device that expands the surface on which articles can be placed while improving stability. [Industrial applicability]

[0118] The cart device according to the present invention is industrially applicable because it expands the surface area on which articles can be placed while improving stability. [Explanation of Symbols]

[0119] 1...Cart device, 2...Cart body, 20...Base part, 203...Caster, 21...Support base (support body), 22...Top plate unit, 221...Top plate, 221a...Top plate top surface, 221m...Outer edge part, 221pa...Outer edge, 223...Handle (handle part), 23...Lifting operation part, 3...Shelf, 4...First shelf part, 4a...First top surface, 4m...Outer edge part, 41...First front shelf (first item placement part), 41a...First front (first placement surface), 42...First rear shelf (second item placement part), 42a...First rear surface (second placement surface), 4pa...First upper outer edge (outer edge), 5...First Two shelf sections, 5a...Second top surface, 5m...Outer edge section, 51...Second front shelf (first item placement section), 51a...Second front surface (first placement surface), 52...Second rear shelf (second item placement section), 52a...Second rear surface (second placement surface), 5pa...Outer edge of second top surface (outer edge), 6...Connecting member, 61...First connecting member (connecting member), 611...Drop-stop section, 62...Second connecting member (connecting member), 621...Drop-stop section, 7...Placement section holding section (bracket), 71...First placement section holding section (first bracket), 72...Second placement section holding section (second bracket), 8...Bumper (cushioning material)

Claims

1. A base unit that can move on the floor surface, A support extending upward from the base portion, A mounting part holding part connected to the support, A first article placement section having a first placement surface on which an article can be placed, A second article placement section is positioned in a different location from the first article placement section when viewed from above, and has a second placement surface adjacent to the first placement surface on which an article can be placed, A connecting member that connects the first article placement section and the second article placement section, Equipped with, At least one of the first article placement section and the second article placement section is fixed to the aforementioned placement section holder, The support is surrounded by a composite mounting surface formed by the first mounting surface and the second mounting surface. Cart device.

2. The mounting part holder comprises a first mounting part holder and a second mounting part holder. The first article placement section is fixed to the first placement section holding section, The second article placement section is fixed to the second placement section holding section. The cart device according to claim 1.

3. The first mounting surface and the second mounting surface form a combined mounting surface. The composite mounting surface is fitted with a fall-prevention portion that protrudes upward from at least a portion of its outer edge. The cart device according to claim 1 or claim 2.

4. The aforementioned fall-stopping portion is provided on the connecting member. The cart device according to claim 3.

5. The fall-preventing portion is attached to the outer edge of the composite mounting surface so as to cover at least the space between the first mounting surface and the second mounting surface. The cart device according to claim 4.

6. The first article placement section and the second article placement section are capable of changing their vertical height relative to the support. The cart device according to claim 1 or claim 2.

Images