Dolly

Abstract

To reduce a troublesome work or the like for searching for a fastening tool, by preventing the fastening tool from being misplaced when a user uses the fastening tool including a fixing belt.SOLUTION: A dolly 10 includes: a plate-shaped base portion 11 on a placement surface 11A of which a load S1 can be placed; and a caster portion 12 attached to a lower side of the base portion 11. The base portion 11 has, inside outer edges of the base portion 11, an article storage recessed portion 13 in which an article including a fixing belt S2, etc., can be stored.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a cart that can place and transport a load.

Background Art

[0002] Some conventional carts have casters attached to the lower side of a base portion on which a load can be placed on a placement surface (for example, Patent Document 1). When a cart loaded with a load travels, load collapse may occur. To prevent load collapse, a fixing belt for preventing load collapse is used to fix the load to the base portion.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the case of the cart D with casters C shown in FIG. 10, the fixing belt E is passed over the luggage F, and the luggage F is fixed to the base portion G for transportation. Specifically, the fixing belt E is bridged over the luggage F stacked high, and the luggage F is fixed to the base portion G by hanging fixing hooks (not shown) at both ends of the fixing belt E on the base portion G. By the way, when the luggage F stacked on the base portion G is small and is transported without fixing the fixing hook to the base portion G, the fixing belt E may be removed and placed around. In this case, the fixing belt E may be lost (missing), and then the fixing belt E may be searched for. Further, when the fixing belt E is removed and stored at a storage location, an operation of going to the storage location to pick up the fixing belt E occurs, but the operation of going to the storage location to pick up is not always an efficient operation, and time loss occurs.

[0005] An object of the present invention is to provide a trolley that can reduce the cumbersome work of searching for a fastener, such as a fixing belt, and reduce the burden on the user by preventing the fastener from getting lost when using a fastener including a fixing belt or the like in the above-described situation.

Means for Solving the Problems

[0006] In order to solve the above problems, according to Means 1, in a trolley including a plate-shaped base portion on which a load can be placed on a placement surface and a caster portion attached to the lower side of the base portion, the base portion has an article storage recess that is recessed in the plate thickness direction from the placement surface and can store articles including a fixing belt or the like. Note that the articles stored in the article storage recess may be fasteners such as a fixing rope or other articles in addition to the fixing belt or the like.

[0007] In the case of the trolley of Means 1, since it has an article storage recess that is recessed in the plate thickness direction from the placement surface of the base portion and can store articles including a fixing belt or the like, the fixing belt or the like is stored in a fixed position (article storage recess). As a result, it is possible to prevent the fixing belt or the like from getting lost, reduce the cumbersome work of searching around the trolley, etc., and reduce the burden. In this case, the articles may be other office supplies such as slips, writing utensils, stationery, etc. in addition to fasteners such as fixing belts and fixing ropes, which will improve the convenience of the trolley during transportation.

[0008] In order to solve the above problems, according to Means 2, in a trolley including a plate-shaped base portion on which a load can be placed on a placement surface and a caster portion attached to the lower side of the base portion, the base portion has an article storage recess formed to be recessed in the plate thickness direction from the placement surface, and the recess amount of the article storage recess is less than the plate thickness of the base portion and within a range of 70% or more of the plate thickness. Note that the articles stored in the article storage recess may be fasteners such as a fixing rope or other articles in addition to the fixing belt or the like.

[0009] In the case of the carriage of Means 2, it has a recess for storing articles that recesses in the thickness direction from the mounting surface of the base portion. Since the amount of recess of the recess for storing articles is less than the thickness of the base portion and within the range of 70% or more of the thickness, articles including a fixing belt or the like can be stored in the recess for storing articles, and the fixing belt or the like is stored in a fixed position (the recess for storing articles). In the case of such a depth, the load can be placed on the mounting surface with the fixing belt or the like stored in the recess for storing articles. Since the thickness of the base portion is for placing a load on the mounting surface of the carriage, it is approximately 4 centimeters to about 8 centimeters thick. In this case, the depth of the recess for storing articles is preferably set to be less than the thickness of the base portion and within the range of 70% or more of the thickness, and is preferably about 3 centimeters to about 6 centimeters. In the case of such a depth, fasteners such as a fixing belt or a fixing rope for fixing the carriage can be stored. Means 2 may appropriately employ the technical idea described in the first means. Further, depending on the situation, the amount of recess of the recess for storing articles may be changed to be less than the thickness of the base portion and within the range of about 50% of the thickness.

[0010] To solve the above problems, according to Means 3, in a carriage including a plate-shaped base portion on which a load can be placed and a caster portion attached to the lower side of the base portion, the base portion has a recess for storing articles including a fixing belt or the like inside the outer edge of the base portion. Note that the articles stored in the recess for storing articles may be fasteners such as a fixing rope or other articles in addition to the fixing belt or the like.

[0011] In the case of the carriage of Means 3, since there is a recess for storing articles inside the outer edge of the base portion, a recess for storing articles with a large area is formed, and fasteners including a large fixing belt or the like can be stored in the recess for storing articles. Means 3 may appropriately combine the technical ideas described in the first means or (and) the second means.

[0012] According to means 4, in the cart according to any one of means 1 to 3, it is desirable that the bottom of the article storage recess has a property capable of elastic deformation. Means 4 may appropriately incorporate the technical idea of combining one or two or more of the first means to the third means.

[0013] According to means 5, in the cart according to any one of means 1 to 3, the base portion is provided with a handle hole portion drilled in the vertical direction. Further, in order to stack the caster portion of the upper cart on the placement surface of the base portion of the lower cart, a caster portion recess for supporting the caster portion of the upper cart is provided on the base portion stacking surface. It is desirable that the depth (length) of the article storage recess is deeper (longer) than the depth (length) of the caster portion recess and shallower (shorter) than the depth (length) of the handle hole portion. Means 5 may appropriately incorporate the technical idea of combining one or two or more of the first means to the fourth means.

[0014] According to means 6, in the cart according to any one of means 1 to 3, the outer edge of the base portion is provided with a convex portion rising from the placement surface. Further, in order to stack the caster portion of the upper cart on the placement surface of the base portion of the lower cart, a caster portion recess for supporting the caster portion of the upper cart is provided on the base portion stacking surface. It is desirable that the depth of the article storage recess is longer than the depth of the caster portion recess and longer than the height of the convex portion. Means 6 may appropriately incorporate the technical idea of combining the first means to the fifth means.

[0015] According to means 7, in the cart according to any one of means 1 to 3, it is desirable that the lower end of the bottom of the article storage recess is flush with the lower end of the base portion or is located above the lower end of the base portion. In this way, since the lower end of the bottom of the article storage recess is flush with the lower end of the base portion or is located above the lower end of the base portion, the lower end of the bottom of the article storage recess does not protrude below the lower end of the base portion. Means 7 may appropriately incorporate the technical idea of combining the first means to the sixth means.

[0016] According to means 8, in the cart according to any one of means 1 to 3, a peripheral rib surrounding the article storage recess is provided around the article storage recess, and it is desirable that the lower end of the peripheral rib or the lower end of the bottom of the article storage recess is flush with the lower end of the base or located on the upper side. Since the lower end of the peripheral rib or the lower end of the bottom of the article storage recess is flush with the lower end of the base or located on the upper side in this way, the peripheral rib of the article storage recess does not protrude downward, and the possibility of damage is reduced. In addition, a peripheral rib may be provided on the bottom surface of the base, and the peripheral rib may be connected to a reinforcing rib extending in the vertical direction and a reinforcing rib extending in the horizontal direction. Means 8 may appropriately employ the technical idea of combining any one or two or more of the first to seventh means.

[0017] According to means 9, in the cart according to any one of means 1 to 3, a peripheral rib composed of a one-side rib and the other-side rib surrounding the article storage recess is provided around the article storage recess, and it is desirable that the connecting portion of the one-side rib and the other-side rib is coupled to an outer edge rib extending outward from the peripheral rib of the article storage recess. Note that the one-side rib and the other-side rib may be composed of a rib extending in the vertical direction (X-axis direction) and a rib extending in the horizontal direction (Y-axis direction). Further, a reinforcing rib extending in the vertical direction and a reinforcing rib extending in the horizontal direction may be connected to the peripheral rib. Means 9 and the rib structure (one-side rib and the other-side rib, reinforcing rib) may appropriately employ the technical idea of combining any one or two or more of the first to eighth means.

[0018] According to means 10, in the cart according to any one of means 1 to 3, a peripheral rib composed of a one-side rib and the other-side rib surrounding the article storage recess is provided around the article storage recess, and it is desirable that a reinforcing rib for reinforcing the bottom of the article storage recess is coupled to the peripheral rib. Means 10 may appropriately employ the technical idea of combining the first means to the ninth means.

Advantages of the Invention

[0019] When a user uses a cart with an article including a fixing belt or the like, since the article such as a fastener including the fixing belt or the like is stored in a fixed position (article storage recess), when using the fixing belt or the like thereafter, it can be used immediately.

Brief Description of the Drawings

[0020]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Modes for Carrying Out the Invention

[0021] Hereinafter, a cart according to a first embodiment embodying the present invention will be described with reference to FIGS. 1 to 5. First, the directions (X-axis, Y-axis, and Z-axis directions) used when explaining the cart of the present embodiment will be described. At the periphery of the base portion 11 of the cart 10 shown in FIGS. 1 to 5, the direction along the short side is defined as the X-axis direction, and the direction along the long side is defined as the Y-axis direction. The height direction of the base portion 11 is defined as the Z-axis direction, and the X-axis direction, Y-axis direction, and Z-axis direction are orthogonal to each other. The cart 10 shown in Fig. 1 includes a plate-shaped (made of synthetic resin) base portion 11 and four casters (constituting the caster portion) 12 attached to the lower side of the base portion 11. The base portion 11 has a placement surface 11A on which a load such as a luggage S1 (schematically shown in Fig. 2) can be placed, and has a thickness H1 of about a dozen centimeters in the height direction (Z-axis direction) in order to ensure sufficient mechanical strength (see Fig. 4). The thickness H1 of the base portion 11 is defined as the thickness of the plate material. In the case of this embodiment, the height of the convex portion 11P (described later) formed on the outer edge side of the placement surface 11A of the base portion 11 is excluded. However, depending on changes in the situation, etc., the height of the convex portion 11P on the outer edge of the base portion 11 may be included.

[0022] At the center of the base portion 11, an article storage recess 13 (described later) is provided that can accommodate a fixing belt S2 (schematically shown in Fig. 2). When the fixing belt S2 is accommodated in such an article storage recess 13, the user can always visually check the fixing belt S2, so that it is possible to prevent the fixing belt S2 from getting lost. In Fig. 2, in order to clearly show the fixing belt S2, etc., the load S1 and the fixing belt S2, etc. are described at positions different from the base portion 11 (moving in the arrow direction during loading). Since the thickness H1 of the plate material of the base portion 11 is defined as the plate thickness of the base portion 11 (Claim 2), as shown in Figs. 4 and 5, the sum of the recess amount H2 (depth) of the article storage recess 13 and the thickness H3 (length) of the bottom portion 13B of the article storage recess 13 is the thickness H1 of the base portion 11. The plate thickness H1 of the base portion 11 is determined for placing a load such as a luggage S1 on the placement surface 11A of the cart 10, and is approximately 4 centimeters to 8 centimeters thick. In this case, the depth of the article storage recess 13 is preferably set to be less than the plate thickness H1 of the base portion 11 and within the range of 70% or more of the plate thickness H1, and is approximately 3 centimeters to 5.6 centimeters.

[0023] At the central positions along both peripheral edges of the base portion 11, two handle holes 14 (at the left and right ends in the Y-axis direction) and two handle holes 15 (at the left and right ends in the X-axis direction) are provided. The handle holes 14 and 15 are used for operations such as stacking a plurality of carts 10, for example, one on top of the other, pulling up the carts 10 individually, or carrying them by hand. The handle holes 14 and 15 are preferably formed as through holes that penetrate the plate material of the base portion 11 so that the operator (user) can insert their hand sufficiently and exert a large force in this state when performing the above operations. That is, when the handle holes 14 and 15 are through holes in the base portion 11, the depth of the handle holes 14 and 15 is the same as the thickness H1 of the base portion 11.

[0024] A hook portion (not shown) is attached to the lower side near both handle holes 14 of the base portion 11, and the loaded object S1 is fixed using the long fixing belt S2 and the hook portion. That is, similar to the prior art (FIG. 10), the fixing belt S2 is laid across the stacked loaded objects S1, and the fixing hooks S3 and S4 (schematically shown in FIG. 2) at both ends of the fixing belt S2 can be hooked onto the hook portion of the base portion 11 for fixing.

[0025] Specifically, with the fixing hook S3 at one end of the belt S2 hooked onto a hook portion on one side of the base portion 11 (not shown), the fixing belt S2 is laid across the loaded object S1. Further, the fixing hook S4 at the other end of the fixing belt S2 is hooked onto the hook portion on the other end side near the handle hole 14 of the base portion 11, and by applying tension to the fixing belt S2, the loaded object S1 placed on the base portion 11 can be fixed, preventing the load from collapsing.

[0026] Each caster 12 is attached to the four corners of the lower side (bottom surface 11B) of the base portion 11. At the four corners of the placement surface 11A of the loading platform 11, four caster placement portions 11C for supporting each caster 12 are provided when stacking the carts 10 vertically. Each caster placement portion 11C is a concave portion that is recessed by a depth (length 11H) from the placement surface 11A, that is, for example, recessed by about several centimeters, so that it can support the caster portion 12 of the upper cart 10 when stacking the caster portion 12 of the upper cart 10 on the placement surface 11A of the base portion 11 of the lower cart 10.

[0027] The size of the plate-shaped base portion 11 can be set by the length P1 of one side (short side) in the short side direction (X-axis direction) of the planar shape (see Fig. 2) and the length P3 of the other side (long side) in the long side direction (Y-axis direction). Specifically, the length (P1) of the short side and the length (P3) of the long side of the base portion 11 are determined to be, for example, about 40 centimeters and about 60 centimeters. Note that the length P1 of the short side and the length P3 of the long side may be other lengths. Note that the planar shape of the base portion 11 may be appropriately changed from a rectangular shape or may be other shapes by appropriately changing the length P1 of the short side and the length P3 of the long side.

[0028] On the outer edge of the base portion 11, there is a convex portion 11P that rises from the placement surface 11A. The convex portion 11P prevents the loaded object S1 placed on the placement surface 11A of the loading platform 11 from falling, etc., and a certain height (length 11Q) is required for the convex portion 11P. That is, the height (length 11Q) for preventing the loaded object S1 from falling, etc. is about several centimeters from the placement surface 11A. In this case, the height of the convex portion 11P is generally longer than the depth (length 11H) of the recess 11C for the caster portion.

[0029] At the center of the placement surface 11A of the loading platform 11, an article storage recess 13 that is recessed in the plate thickness direction (Z-axis direction) from the placement surface 11A is provided. The planar shape of the article storage recess 13 becomes approximately square by making one side with a length P2 in the X-axis direction and the other side with a length P4 in the Y-axis direction have the same length. The planar shape of the article storage recess 13 may be a rectangular shape or other shapes other than a square shape by changing the lengths P2 and P4 as needed. The article storage recess 13 is formed in the bottom portion 13B such that a large number of through holes 13A are arranged in the vertical and horizontal directions (X-axis direction and Y-axis direction). The reason for forming a large number of through holes 13A is to allow the liquid (such as moisture) accumulating at the bottom portion 13B to flow downward and to reduce the weight of the entire loading platform 11.

[0030] As shown in FIGS. 2 and 4, the volume of the recess 13 for storing articles is determined by the length P2, the length P4, and the depth (recess amount H2). Specifically, it is determined as follows. That is, when the loaded object S1 (see FIG. 2) such as a luggage is stacked vertically on the placement surface 11A of the cart 10, it is determined so that the fixing belt S2 (see FIG. 4) for preventing the load from collapsing can be stored in the recess 13 for storing articles.

[0031] Specifically, the depth (recess amount H2) of the recess 13 for storing articles is set to be longer than the belt width of the fixing belt S2 in order to store the long fixing belt S2 in a wound state in the recess 13 for storing articles. In this case, when a plurality of carts 10 with the loaded object S1 stacked on the placement surface 11A are stacked, it is desirable that the loaded object S1 can be stacked on the placement surface 11A with the fixing belt S2 stored in the recess 13 for storing articles.

[0032] Specifically, the fixing belt S2 having the fixing hooks S3 at both ends has a belt width of several centimeters, a belt length of about several meters, and a total belt weight of about several kilograms in a wound state. Therefore, as the volume of the recess 13 for storing articles for storing the fixing belt S2 therein, the length P2 is several tens of centimeters (the length P2 is less than the length P1), the length P4 is several tens of centimeters (the length P4 is less than the length P3), and the recess amount H2 is about ten-odd centimeters (note that the recess amount H2 is shorter than the thickness H1 of the plate of the base 11).

[0033] Since the thickness of the bottom 13B of the recess 13 for storing articles is the thickness (H3) obtained by subtracting the amount of indentation H2 from the plate thickness (H1), when storing the above-described fixing belt S2 (total belt weight of about several kilograms) in the recess 13 for storing articles, the thickness H3 and mechanical strength of the bottom 13B are set to a thickness and mechanical strength capable of supporting the total weight of the fixing belt S2. As a result of trial and error, in order to make the thickness H3 of the bottom 13B equal to or greater than a predetermined value, it is desirable to set the amount of indentation H2 (FIG. 4) of the recess 13 for storing articles within a range of less than 30% of the plate thickness (H1) of the base portion 11. Note that, depending on the situation, the amount of indentation H2 of the recess 13 for storing articles may be changed to a range less than the plate thickness (H1) of the base portion 11 and about 50% (40%) of the plate thickness.

[0034] In addition, the lengths P2 and P4 and the depth (amount of indentation H2) of the recess 13 for storing articles can be set to lengths P2 and P4 and a depth (amount of indentation H2) other than the above by appropriately selecting the material and length of the fixing belt S2. Further, when changing to a fastening tool such as a fixing rope (an article for fixing the loaded object S1) other than the fixing belt S2, the volume (lengths P2 and P4 and amount of indentation H2) of the recess 13 for storing articles can be appropriately changed.

[0035] Also, the position (shown in FIG. 2) of the recess 13 for storing articles provided on the mounting surface 11A of the loading platform 11 can be determined as follows. That is, the position of the recess 13 for storing articles (length P2) in the short side direction (X-axis direction) is defined by lengths P5 and P6 in the short side direction (X-axis direction) (length P1 is the sum of length P2, length P5, and length P6). Further, the position of the recess 13 for storing articles (length P4) in the long side direction (Y-axis direction) is defined by lengths P7 and P8 in the long side direction (Y-axis direction) (length P3 is the sum of length P4, length P7, and length P8).

[0036] In this case, since the length P5 and the length P6 are of approximately the same length, and the length P7 and the length P8 are of approximately the same length, the recess 13 for storing articles will be located at the center of the placement surface 11A with respect to the X-axis direction and the Y-axis direction. However, with the length P2 determined, the position of the recess 13 for storing articles in the short side direction (X-axis direction) can be changed by appropriately changing the length P5 and the length P6. Similarly, with the length P4 determined, the position of the recess 13 for storing articles in the long side direction (Y-axis direction) can be changed by appropriately changing the length P7 and the length P8.

[0037] Next, the structure such as ribs provided on the bottom side 11B etc. of the loading platform 11 will be described with reference to FIGS. 3 to 5. Note that an outer edge rib 13Z (see FIG. 3) for ensuring mechanical strength is provided on the outer edge of the loading platform 11. The outer edge rib 13Z and the adjacent inner rib 13Q (including ribs intersecting the outer edge rib 13Z) are structured to support most of the total load applied to the loading platform 11, and it is desirable in terms of structure to enhance the mechanical strength. Further, it is desirable that the outer edge rib 13Z and the inner rib 13Q adjacent to the outer edge rib 13Z have a structure with durability against the impact strength and bending strength applied from the outside of the loading platform 11. Note that the bending strength generally corresponds to the mechanical strength. As shown in FIG. 3, peripheral ribs 13Y extending in the long side direction (Y-axis direction) are disposed on the outer edge of the recess 13 for storing articles on the bottom 13B side of the recess 13 for storing articles (both on the upper side and the lower side in FIG. 3). Similarly, peripheral ribs 13X extending in the short side direction (X-axis direction) are disposed on the outer edge of the recess 13 for storing articles (both on the left side and the right side in FIG. 3). These peripheral ribs 13X and peripheral ribs 13Y are coupled to each other at both ends (connection part 13P), and form a substantially square shape in plan view with the length P2 and the length P4 as one side and the other side.

[0038] The surrounding ribs 13X and 13Y are structured to support most of the total load applied to the bottom 13 of the recess 13 for storing articles. Therefore, when setting the load applied to the bottom 13 of the recess 13 for storing articles to be small (large), the load applied to the surrounding ribs 13X and 13Y is small (large), and the thicknesses of the surrounding rib 13X and the surrounding rib 13Y can be set to be thin (thick) (that is, the load is set to a small (large) specification). In this case, the mechanical strength of the surrounding ribs 13X and 13Y can be weakened by adopting a specification in which the mechanical strength is thinner than the thicknesses of the short-side ribs, long-side ribs, or outer-edge ribs.

[0039] As shown in FIG. 3, between the surrounding ribs 13 (surrounding ribs 13X and 13Y) and the outer-edge rib 13Z of the recess 13 for storing articles, long-side ribs 16 (16A, 16B) extending in the long-side direction (Y-axis direction) are disposed, and short-side ribs 17 (17A, 17B) extending in the short-side direction (X-axis direction) are also disposed. The long-side ribs 16 (16A, 16B) and the short-side ribs 17 (17A, 17B) are structured to support the load applied to the recess 13 for storing articles, etc., together with the surrounding ribs 13X and 13Y, and it is desirable to enhance the mechanical strength.

[0040] The long-side rib 16A extends in the long-side direction (Y-axis direction) without being connected to the surrounding rib 13X of the recess 13 for storing articles, and is connected between the outer-edge ribs 13Z. On the other hand, the long-side rib 16B extends in the long-side direction (Y-axis direction), is connected to the surrounding rib 13X of the recess 13 for storing articles, and is also connected to the outer-edge rib 13Z. As shown in FIG. 3, the interval between adjacent long-side ribs 16A may be wider than the interval between adjacent long-side ribs 16B. In addition to this, the interval between adjacent long-side ribs 16A may be narrower than the interval between adjacent long-side ribs 16B, or may be an interval of the same degree. When forming a narrow rib interval, it is generally formed when it is necessary to support a large load, and when forming a wide rib interval, it is formed when it is necessary to support a relatively small load.

[0041] The short-side rib 17A extends in the short-side direction (X-axis direction) without being connected to the peripheral rib 13Y of the article storage recess 13, and is connected between the outer-edge ribs 13Z. On the other hand, the short-side rib 17B extends in the short-side direction (X-axis direction), is connected to the peripheral rib 13Y of the article storage recess 13, and is also connected to the outer-edge rib 13Z. The interval between adjacent short-side ribs 17A may be narrower than the interval between adjacent short-side ribs 17B, or may be of the same degree, or conversely, may be wider than the interval between adjacent short-side ribs 17B.

[0042] A reinforcing rib 13N extending in the short-side direction (X-axis direction) within the article storage recess 13 is connected to the peripheral rib 13Y of the article storage recess 13. Further, a reinforcing rib 13M extending in the long-side direction (Y-axis direction) within the article storage recess 13 is connected to the peripheral rib 13X of the article storage recess 13 at a predetermined interval. As shown in FIG. 3, the interval between adjacent reinforcing ribs 13N is of the same degree as the interval between adjacent reinforcing ribs 13M. The interval between the reinforcing ribs 13N may be narrower than the interval between adjacent reinforcing ribs 13M, or conversely, may be wider than the interval between adjacent reinforcing ribs 13M. As a structure of the ribs surrounding the article storage recess 13, when the peripheral rib 13X which is a rib on one side, the peripheral rib 13Y which is a rib on the other side, and the connecting portion 13P connecting the rib 13X on one side and the rib 13Y on the other side are combined with the outer-edge ribs (that is, the long-side ribs 16 (16A, 16B) and the short-side ribs 17 (17A, 17B)) extending outward from the peripheral ribs 13X and 13Y of the article storage recess 13, the load applied to the article storage recess 13 and the like can be sufficiently supported.

[0043] Also, the thickness of the bottom 13B of the article storage recess 13 is specified as the thickness H3 as described above. In the case of this embodiment, the thickness H3 is the total length of the bottom-surface rib 17E (thickness H6) of the bottom 13B and the thickness (length H7) of the flat portion of the bottom 13B. Note that the bottom-surface rib 17E (thickness H6) may be of the same degree as the thickness (length H7) of the flat portion. Otherwise, the bottom-surface rib 17E (thickness H6) may be thinner than the thickness (length H7) of the flat portion, or conversely, may be thicker than the thickness (length H7) of the flat portion. The thickness (H3) of the bottom 13B may be the same as the thickness (H5) of the surface of the placement surface 11A, or alternatively, the thickness (H3) of the bottom 13B may be thinner than the thickness (H5) of the surface of the placement surface 11A, or conversely, it may be thicker than the thickness (H5) of the surface of the placement surface 11A. The bottom rib 17E (thickness H6) may be the same thickness as the thickness (H5) of the surface of the placement surface 11A, or alternatively, it may be thinner than the thickness (H5) of the surface of the placement surface 11A, or conversely, it may be thicker than the thickness (H5) of the surface of the placement surface 11A.

[0044] Also, the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the long side ribs 16 (16A, 16B), but various changes can be made as needed, and it may be the same thickness, or conversely, it may be thicker than the thickness of the long side ribs 16 (16A, 16B). When the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the long side ribs 16 (16A, 16B), the weight of the bottom rib 17E can be reduced. On the other hand, when the thickness of the bottom rib 17E is thicker than the thickness of the long side ribs 16 (16A, 16B), the mechanical strength of the bottom rib 17E is ensured. Also, the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the short side ribs 17 (17A, 17B), but various changes can be made as needed, and it may be the same thickness, or conversely, it may be thicker than the thickness of the short side ribs 17 (17A, 17B). When the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the short side ribs 17 (17A, 17B), the weight of the bottom rib 17E can be reduced. On the other hand, when the thickness of the bottom rib 17E (thickness H6) is thicker than the thickness of the short side ribs 17 (17A, 17B), the mechanical strength of the bottom rib 17E is ensured.

[0045] Also, although the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the peripheral rib 13X, various changes can be made as needed, and it may have the same thickness, or conversely, it may be thicker. Also, although the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the peripheral rib 13Y, various changes can be made as needed, and it may have the same thickness, or conversely, it may be thicker than the thickness of the peripheral rib 13Y. When the thickness of the bottom rib 17E (thickness H6) is thinner than the thickness of the peripheral rib 13X, the weight of the bottom rib 17E can be reduced. On the other hand, when the thickness of the bottom rib 17E (thickness H6) is thicker than the thickness of the peripheral rib 13X, the mechanical strength of the bottom rib 17E is ensured.

[0046] Also, the lower end of the bottom rib 17E (thickness H6) may be on the same plane as the lower end of the plate thickness (H1) of the base portion 11. Otherwise, the lower end of the bottom rib 17E (thickness H6) may be above the lower end of the plate thickness (H1) of the base portion 11, or conversely, it may be below the lower end of the plate thickness (H1) of the base portion 11. When the lower end of the bottom rib 17E (thickness H6) does not protrude below the lower end of the plate thickness (H1) of the base portion 11, when the cart 10 is traveling, even if there are obstacles or the like on the traveling road surface, the bottom rib 17E is less likely to be damaged. Also, when stacking the upper cart 10 on the placement surface 11A of the base portion 11 of the lower cart 10, the bottom rib 17E is less likely to hit the articles stored in the article storage recess 13 of the lower cart 10, so it is less likely that the articles will hit the bottom rib 17E and cause problems (for example, scratching the surface of the other party or the possibility of damage to itself).

[0047] Also, the lower end of the thickness (length H7) of the flat plate portion of the bottom portion 13B may be on the same plane as the lower end of the plate thickness (H1) of the base portion 11. Otherwise, the lower end of the thickness (length H7) of the flat plate portion of the bottom portion 13B may be above the lower end of the plate thickness (H1) of the base portion 11, or conversely, it may be below the lower end of the plate thickness (H1) of the base portion 11. These upper or lower positions may be at any thickness greater than 0% and less than 50% of the plate thickness (H1) of the base portion 11 and be in the upper or lower position. When the lower end of the flat part of the bottom 13B does not protrude below the lower end of the plate thickness (H1) of the base part 11, even if there are obstacles or the like on the running road surface during the running of the cart 10, the flat part of the bottom 13B is less likely to be damaged. Also, when stacking the upper cart 10 on the placement surface 11A of the base part 11 of the lower cart 10, the flat part of the bottom 13B is less likely to hit the articles stored in the article storage recess 13 of the lower cart 10. Therefore, it is less likely that the articles will hit the bottom rib 17E, resulting in problems (for example, scratching the surface of the other party or the possibility of damage to itself).

[0048] Also, the lower end of the thickness (length H7) of the flat part of the bottom 13B may be on the same plane as the lower end of the thickness of the long side ribs 16 (16A, 16B). Otherwise, the lower end of the thickness (length H7) of the flat part of the bottom 13B may be above the lower end of the thickness of the long side ribs 16 (16A, 16B), or conversely, may be below the lower end of the thickness of the long side ribs 16 (16A, 16B). These upper or lower positions may be at any thickness greater than 0% and less than 50% of the thickness (length H7) of the flat part of the bottom 13B, and may be in the upper or lower positions. When the thickness (length H7) of the flat part of the bottom 13B is thinner than the thickness of the long side ribs 16 (16A, 16B), the weight of the flat part of the bottom 13B can be reduced. On the other hand, when the thickness (length H7) of the flat part of the bottom 13B is thicker than the long side ribs 16 (16A, 16B), the mechanical strength of the flat part of the bottom 13B is ensured.

[0049] Also, the lower end of the thickness (length H7) of the flat part of the bottom 13B may be on the same plane as the lower end of the thickness of the short side ribs 17 (17A, 17B). Otherwise, the lower end of the thickness (length H7) of the flat part of the bottom 13B may be above the lower end of the thickness of the short side ribs 17 (17A, 17B), or conversely, may be below the lower end of the thickness of the short side ribs 17 (17A, 17B). These upper or lower positions may be at any thickness greater than 0% and less than 50% of the thickness (length H7) of the flat part of the bottom 13B, and may be in the upper or lower positions. When the thickness (length H7) of the flat portion of the bottom 13B is thinner than the thickness of the short-side ribs 17 (17A, 17B), the weight reduction of the flat portion of the bottom 13B can be achieved. On the other hand, when the thickness (length H7) of the flat portion of the bottom 13B is thicker than the short-side ribs 17 (17A, 17B), the mechanical strength of the flat portion of the bottom 13B is ensured.

[0050] Also, the lower end of the thickness (length H7) of the flat portion of the bottom 13B may be on the same plane as the lower end of the thickness of the peripheral rib 13X. Otherwise, the lower end of the thickness (length H7) of the flat portion of the bottom 13B may be on the upper side of the lower end of the thickness of the peripheral rib 13X, or conversely, on the lower side of the lower end of the thickness of the peripheral rib 13X. These upper or lower positions may be at any degree of a number greater than 0% and less than 50% of the thickness (length H7) of the flat portion of the bottom 13B, and may be in the upper or lower positions. When the thickness (length H7) of the flat portion of the bottom 13B is thinner than the thickness of the peripheral rib 13X, the weight reduction of the flat portion of the bottom 13B can be achieved. On the other hand, when the thickness (length H7) of the flat portion of the bottom 13B is thicker than the peripheral rib 13X, the mechanical strength of the flat portion of the bottom 13B is ensured.

[0051] Also, the lower end of the thickness (length H7) of the flat portion of the bottom 13B may be on the same plane as the lower end of the thickness of the peripheral rib 13Y. Otherwise, the lower end of the thickness (length H7) of the flat portion of the bottom 13B may be on the upper side of the lower end of the thickness of the peripheral rib 13Y, or conversely, on the lower side of the lower end of the thickness of the peripheral rib 13Y. These upper or lower positions may be at any degree of a number greater than 0% and less than 50% of the thickness (length H7) of the flat portion of the bottom 13B, and may be in the upper or lower positions. When the thickness (length H7) of the flat portion of the bottom 13B is thinner than the thickness of the peripheral rib 13Y, the weight reduction of the flat portion of the bottom 13B can be achieved. On the other hand, when the thickness (length H7) of the flat portion of the bottom 13B is thicker than the peripheral rib 13Y, the mechanical strength of the flat portion of the bottom 13B is ensured.

[0052] Further, the surface of the flat portion of the bottom 13B may be a flat surface having a predetermined smoothness. The smoothness of the surface of the flat portion of the bottom 13B may be the same as that of the placement surface 11A of the article storage recess 11. Alternatively, the smoothness of the surface of the flat portion of the bottom 13B may be smaller than that of the placement surface 11A of the pedestal 11, or conversely, may be larger than that of the placement surface 11A of the pedestal 11.

[0053] Also, the flat portion of the bottom 13B may have elasticity, and can be achieved, for example, by attaching an elastic rubber material or the like (not shown). When the surface of the flat portion of the bottom 13B has elasticity in this way, the surface of the flat portion of the bottom 13B becomes softer than the placement surface 11A of the pedestal 11. When the surface of the flat portion of the bottom 13B has elasticity, when picking up an article placed on the flat portion of the bottom 13B with a hand (finger), the hand (finger) of the operator sinks in, and the article placed on the bottom 13B becomes easier to pick up. In order to further facilitate picking up the article placed on the bottom 13B, a two-step recess may be formed in the bottom 13B. However, as a structure in which the bottom 13B has elasticity, when the bottom 13B is formed of a synthetic resin, it may be determined so as to be equal to or less than the plate thickness H1 of the pedestal 11 (a predetermined thickness or less). That is, when the thickness of the bottom 13B of the article storage recess 13 is thin, when the bottom rib 17E (thickness H6) is about the same as the thickness (length H7) of the flat portion (otherwise, even when the thickness H6 is thinner or thicker than the thickness H7), the mechanical strength of the bottom 13B is small, and the bottom 13B has a structure having elasticity.

[0054] Also, the thickness (length H7) of the flat portion of the bottom 13B may be about the same as the length by which the caster placement portion 11C (recess) is lowered by a predetermined depth (length 11H) from the placement surface 11A in the height direction (Z-axis direction) of the pedestal 11. Alternatively, the thickness (length H7) of the flat portion of the bottom 13B may be smaller than the depth (length 11H) of the caster placement portion 11C (recess), or conversely, may be larger. The upper or lower position corresponding to the thickness (length H7) of these flat portions may be at an upper or lower position corresponding to a thickness of any number greater than 0% and less than 50% of the thickness (length H7) of the flat portion of the bottom 13B.

[0055] The density of the flat portion of the bottom 13B may be approximately the same as that of the placement surface 11A. Alternatively, the density of the flat portion of the bottom 13B may be smaller than that of the placement surface 11A, or conversely, may be larger than that of the placement surface 11A. Specifically, the reason for increasing the rib density by narrowing the rib interval between the outer rib 13Z and the inner rib 13Q is that the load applied near the outer rib 13Z of the loading platform 11 becomes a high load, and it is for improving the bending strength. On the other hand, the rib interval between the reinforcing ribs 13M and 13N that are coupled to the peripheral ribs 13 (peripheral ribs 13X, peripheral ribs 13Y) of the article storage recess 13 is made relatively low density compared to the rib interval between the outer rib 13Z and the inner rib 13Q in order to improve the bending strength when the bottom side 11B of the loading platform 11 receives a load. Also, the reason for making the rib interval low density by widening the rib interval sandwiched between the peripheral ribs 13X, 13Y and the inner rib 13Q is to make it easier to disperse the load received on the bottom side 11B of the loading platform 11. That is, in this location, it is a part that is less likely to receive the load of the load S1 such as luggage, and strong mechanical strength is not required, and it is for weight reduction of the base 11. Note that as the significance of mechanical strength, it mainly implies the bending strength when a load is applied, but other strengths such as impact strength may also be included. Setting the rib intervals in this way to high density (the rib interval between the outer rib 13Z and the inner rib 13Q), relatively high density (the rib interval between the reinforcing ribs 13M and 13N), and low density (the rib interval sandwiched between the peripheral ribs 13X, 13Y and the inner rib 13Q) is for appropriately receiving the load applied to the base 11. However, if necessary, by appropriately changing the rib intervals, it is possible to change the above rib intervals to high density (the rib interval between the outer rib 13Z and the inner rib 13Q), low density (the rib interval between the reinforcing ribs 13M and 13N), and relatively high density (the rib interval sandwiched between the peripheral ribs 13X, 13Y and the inner rib 13Q). Note that as a method for setting a high-density rib interval, for example, the rib interval of the short-side rib 17A between the casters 12 (caster mounting portion 11C) in the X-axis direction of the base 11 may be made narrower than that of the other short-side ribs 17A, 17B, or the length of the rib in the Z-axis direction may be made longer than that of the other ribs to increase the mechanical strength. Also, as a method for setting the medium-density rib interval, for example, the rib interval of the short-side rib 17B between the peripheral rib 13Y and the outer-edge rib 13Z of the article storage recess 13 on the central side in the Y-axis direction of the base portion 11 may be made narrower than that of the other short-side ribs 17A and 17B, or the length of the rib in the Z-axis direction may be increased to enhance the mechanical strength. Further, when two loads such as two pieces of luggage are placed side by side, a portion that is likely to receive the load of the two loads such as two pieces of luggage is generated, and regarding this location, a certain mechanical strength is required. Also, as a method for setting the low-density rib interval, for example, the rib intervals of the short-side ribs 17A and 17B between the central side (peripheral rib 13X) in the Y-axis direction of the base portion 11 and the caster 12 (caster mounting portion 11C) may be made wider than those of the other short-side ribs 17A and 17B, or the length of the rib in the Z-axis direction may be shortened to reduce the mechanical strength.

[0056] Also, at the joint portion 13R (hereinafter also referred to as the joint) between the bottom portion 13B and the peripheral rib 13X and the peripheral rib 13Y, a spat rib (not shown) may be provided. Also, at the joint portion 13R, an R (round) surface shape connecting to either the peripheral rib 13X or the peripheral rib 13Y or the bottom portion 13B may be formed. The R (round) surface shape provided at the joint portion 13R may be larger than the R (round) surface shape provided at other locations of the base portion 11. As another modification, a structure in which the bottom rib 17E (thickness H6) of the bottom portion 13B is not provided may be adopted. In this case, the thickness H3 of the bottom portion 13B is only the thickness (length H7) of the flat plate portion of the bottom portion 13B.

[0057] Next, the second embodiment will be described with reference to FIGS. 6 to 8. FIG. 6 is a corresponding view of FIG. 1, FIG. 7 is a corresponding view of FIG. 2, and FIG. 8 is a corresponding view of FIG. 4. Regarding the same members in the first embodiment for the second embodiment, the same reference numerals are given and detailed descriptions are omitted. The cart 10 includes a plate-shaped base portion 11 and four casters 12. The base portion 11 has a placement surface 11A on which a load such as a piece of luggage (not shown) can be placed, and has a thickness H1 of about ten-odd centimeters (see FIG. 8) to ensure sufficient mechanical strength. At the four corners of the mounting surface 11A, when the carts 10 are stacked vertically, four caster mounting portions 11C for supporting the respective casters 12 are provided. The length (P1) of the short side and the length (P3) of the long side of the base portion 11 are determined, for example, to be about 40 centimeters and about 60 centimeters.

[0058] At positions along both peripheral edges of the base portion 11, two edge base portions 18 (both left and right ends in the X-axis direction) and one edge base portion 19 (one end in the Y-axis direction) are provided. The edge base portions 18 and 19 serve functions such as preventing the carts 10 from falling when a plurality of carts 10 are stacked vertically, for example, and preventing the loaded items from falling when the loaded items are placed on the mounting surface 11A of the cart 10. In the second embodiment, in particular, at one end portion in the Y-axis direction of the two edge base portions 18 and both end portions in the X-axis direction of the one edge base portion 19, there are coupling portions (corner portions) that are coupled to each other. Therefore, the loaded items do not fall from the coupling portions (corner portions), and the usability is improved.

[0059] In the center of the base portion 11, it is possible to accommodate a fixing belt (schematically shown by S2 in FIG. 8). In the second embodiment, the base portion 11 and the edge base portions 18 and 19 form a recess 23, and the recess 23 serves the function of the article storage recess 13 in the first embodiment. When the fixing belt S2 is accommodated in this recess 23, when the user uses the fixing belt S2, the fixing belt S2 can always be visually observed, so that it is possible to prevent the fixing belt S2 from getting lost.

[0060] In the case of the second embodiment, the recess 23 has one side (length P11) extending in the short side direction (X-axis direction) and the other side (length P12) extending in the long side direction (Y-axis direction). The volume of the recess 23 sandwiched by the placement surface 11A of the base portion 11, the edge portions 18 (both left and right ends in the X-axis direction) and the edge portion 19 (one end in the Y-axis direction) becomes larger as one side (length P11) is closer to the length (P1) of the short side of the base portion 11 and the other side (length P12) is closer to the length (P3) of the long side of the base portion 11. Therefore, the edge portions 18 and 19 preferably have a shape along the outer edge of the base portion 11 (a shape that does not fit inside the base portion 11). The larger the volume of the recess 23 sandwiched by the placement surface 11A, the edge portion 18 and the edge portion 19, the longer fixed belt S2 or larger articles can be stored, improving usability.

[0061] The length P11, the length P12 for determining the volume of the recess 23, and the height (H10) of the edge portions 18 and 19 are determined as follows. That is, when stacking loads vertically on the placement surface 11A of the cart 10, it is determined so that the fixing belt S2 for preventing load collapse can be stored in the recess 23. In this case, it is desirable that the recess 23 can maintain the state of storing the fixing belt S2 in a state where a plurality of carts 10 are stacked.

[0062] Unlike the first embodiment, the length P11 for determining the size of the recess 23 is approximately the same as the length (P1) of the short side of the base portion 11, and the length P12 is a length obtained by subtracting approximately the length of one caster mounting portion 11C from the length P3. Therefore, the size of the planar shape of the recess 23 is larger than the planar shape of the article storage recess 13 of the first embodiment.

[0063] Further, ribs 24A with a height (H13) are provided on the bottom surface 23B of the base portion 11. Since the height (H13) of the ribs 24A on the bottom surface 23B of the base portion 11 is approximately the same as the recess amount (H12) of the recess 23, the rib height (H13) of the bottom surface 23B of the base portion 11 is less than the plate thickness (H1) of the base portion 11 and is about 50% of the plate thickness (H1). As a result, the recess amount (H12) of the recess 23 is within the range where the base portion 11 is less than the plate thickness (H1) and is about 50% of the plate thickness. Regarding the recess amount (H12) of the recess 23, by increasing the height of the edge base portions 18 and 19 (which becomes the height H12 in this case), the recess amount (H12) may be changed to a range where it is less than the plate thickness (H1) of the base portion 11 and is about 70% of the plate thickness (H1). Depending on the situation, the recess amount (H12) may be changed to about 40% or 60% of the plate thickness (H1).

[0064] And the ribs 24A on the bottom surface 23B of the base portion 11 may be the same as the bottom surface 23B of the base portion 11 in the first embodiment. That is, the ribs 24A may have the same form as the surrounding ribs 13X and 13Y that connect to the reinforcing ribs 13N and 13M. Also, the ribs 24A may have a form having outer edge ribs (i.e., long side ribs 16 (16A, 16B) and short side ribs 17 (17A, 17B)) that extend outward from the surrounding ribs 13X and 13Y.

[0065] As described above, with the base portion 11, the two edge base portions 18 (both left and right ends in the X-axis direction), and the one edge base portion 19 (both ends in the Y-axis direction), as a result of forming the recess 23 on the placement surface 11A, the recess 23 located inside the edge base portion 18 and the edge base portion 19 functions as the article storage recess 13 in the first embodiment. When the fixing belt S2 is housed in this recess 23, since the user can always visually observe the fixing belt S2, it is possible to prevent the fixing belt S2 from getting lost.

[0066] Next, the third embodiment will be described with reference to FIG. 9. FIG. 9 is a corresponding view of FIG. 6. For the same members in the first and second embodiments in the third embodiment, the same reference numerals are given and detailed descriptions are omitted. The carriage 10 of the third embodiment is different from the second embodiment in that two edge base portions 28 (both left and right ends in the X-axis direction) and two edge base portions 29 (one end in the Y-axis direction) are provided at positions along both peripheral edges of the base portion 11, and other structures are the same as those of the second embodiment.

[0067] A recess 33 is formed by the placement surface 11A of the base portion 11, the two edge base portions 28, and the two edge base portions 29. The recess 33 functions as the article storage recess 13 similar to that of the first embodiment. When a fixing belt (not shown) is accommodated in this recess 33, the user can always visually check the fixing belt, so that it is possible to prevent the fixing belt from getting lost.

[0068] The two edge base portions 28 and the two edge base portions 29 are different from the edge base portion 18 and the edge base portion 19 of the second embodiment in that there is no corner where the edge base portion 28 (both left and right ends in the X-axis direction) and the edge base portion 29 (both ends in the Y-axis direction) are connected. In this carriage 10, for example, when a load with low strength such as cardboard is placed on the placement surface 11A, since there is no corner where the edge base portion 28 and the edge base portion 29 are connected, there is no situation where the load hits the corner where the edge base portion 18 and the edge base portion 19 (second embodiment) are connected and gets damaged, and the convenience is improved.

[0069] The amount of indentation of the recess 33 may be changed to a range less than the thickness of the base portion 11 and about 70% of the thickness by increasing the height of the edge base portions 28 and 29. Also, the bottom surface of the base portion 11 of the third embodiment may have the same configuration as the bottom surface 23B of the base portion 11 of the second embodiment, or may have the same configuration as the bottom surface 13B of the base portion 11 of the first embodiment. The placement surface 11A, and the recess 33 sandwiched between the edge table portions 28 and 29 are, as in the second embodiment, the closer one side (length P11) of the base portion 11 is to the length (P1) of the short side of the base portion 11, and the closer the other side (length P12) is to the length (P3) of the long side of the base portion 11, the larger it becomes. Therefore, the edge table portions 28 and 29 desirably have a shape along the outer edge of the base portion 11 (a shape that does not protrude inside the base portion 11). The larger the volume of the recess 33 sandwiched between the placement surface 11A, the edge table portion 28, and the edge table portion 29, the more a long fixing belt S2 or large articles can be stored, improving usability.

[0070] The present invention is not necessarily limited to those shown in the above-described embodiments (the first to third embodiments), and various modifications other than the above configuration are possible. As the article, a fastening tool such as a fixing rope other than the fixing belt etc. may be used. Also, regarding the size of the placement surface 11A of the loading platform 11, it is not limited to stacking one piece of the load F shown in FIG. 10 in the height direction, and it may be a cart in a form that spreads over an area of two or more pieces of the load F and is further stacked in the height direction.

[0071] According to the above-described embodiment, in the cart 10 including the plate-shaped base portion 11 on which the loaded object S1 can be placed and the casters 12 attached to the lower side of the base portion 11, the base portion 11 has a recess 13 for storing articles including the fixing belt S2 etc., which is recessed in the plate thickness direction (Z-axis direction) from the placement surface 11A. Therefore, an article including the fixing belt S2 etc. can be stored in the article storage recess 13 (predetermined position). By storing an article including the fixing belt S2 etc. in the article storage recess 13, it is possible to prevent the article including the fixing belt S2 etc. from getting lost.

[0072] When the situation where the fixing belt S2 is lost (missing) is eliminated in this way, the operation of searching for the fixing belt S2 does not occur. Also, when an article including the fixing belt S2 or the like is removed and stored at a storage location, the operation of going to the storage location to retrieve the article including the fixing belt S2 or the like occurs. However, in the case of this embodiment, such an operation does not occur. By eliminating the operation of going to the storage location to retrieve the fixing belt S2 or the like, the time for that operation does not occur, and the time loss associated with inefficient operations does not occur.

[0073] According to the above-described embodiment, in the cart 10 including the plate-shaped base portion 11 on which the load S1 can be placed on the placement surface 11A and the casters 12 attached to the lower side of the base portion 11, the base portion 11 has a concave portion 13 for storing articles including the fixing belt S2 or the like that is recessed in the plate thickness direction (Z-axis direction) from the placement surface 11A. Since the amount of recess H2 (depth) of the concave portion 13 for storing articles is less than the plate thickness (thickness H1) of the base portion 11 and within the range of 70% or more of the plate thickness (thickness H1), the fixing belt S2 can be stored at a determined position (concave portion 13 for storing articles). When the amount of recess H2 (depth) is the above depth, in a state where the fixing belt S2 or the like is stored in the concave portion 13 for storing articles, it may be possible to place the load S1 on the placement surface 11A.

[0074] According to the above-described embodiment, in the cart 10 including the plate-shaped base portion 11 on which the load S1 can be placed on the placement surface 11A and the casters 12 attached to the lower side of the base portion 11, in the base portion 11, the base portion 11 is provided at positions along both peripheral edges of the base portion 11 of the edge base portions 18 and 19. Thus, recesses 23 and 33 (concave portions for storing articles) for storing the fixing belt S2 and articles other than the belt (for example, slips, writing utensils, stationery, and other office supplies) can be formed inside the outer edge of the base portion 11. Wide-area recesses 23 and 33 (concave portions for storing articles) are formed inside the outer edge of such a base portion 11, and a large fixing belt S2 can be stored in the recesses 23 and 33 (concave portions for storing articles).

[0075] In the first to third embodiments described above, in the cart 10, the bottom 13B (surface) of the article storage recess 13 formed in the base portion 11 may have, for example, a property capable of elastic deformation (a resin material capable of elastic deformation). In this case, when picking up an article placed on the bottom 13B with a hand (finger), the hand (finger) of the operator sinks into the elastically deformable property portion of the bottom 13B, making it easier to pick up the article placed on the bottom 13B. As the surface of the article storage recess 13, a form having an elastically deformable property may adopt a form other than pasting a rubber material or the like.

[0076] Also, in the cart 10 of the first to third embodiments described above, the base portion 11 is provided with handle holes 14 and 15 drilled in the vertical direction. Further, in order to stack the caster portion 12 of the upper cart 10 on the placement surface 11A of the base portion 11 of the lower cart 10, in a situation where a caster portion recess 11C (length 11H) for supporting the caster portion 12 of the upper cart 10 is provided on the placement surface 11A of the base portion 11, the depth of the article storage recess 13 (the length of the recess amount H2) is deeper (longer) than the depth of the caster portion recess 11C (length 11H) and shallower (shorter) than the depth of the handle holes 14 and 15 (the length of the plate thickness H1). Therefore, with respect to the function of the caster portion recess 11C to support the caster portion 12, the function of the article storage recess 13 to store articles, and the function of the handle holes 14 and 15 to be used as handles, each can fully exert its respective function.

[0077] In the cart 10 of the first to third embodiments described above, a convex portion 11P rising from the mounting surface 11A is provided at the outer edge of the base portion 11. Also, in order to stack the caster portion of the upper cart 10 on the mounting surface 11A of the base portion 11 of the lower cart 10, a caster portion recess 11C for supporting the caster portion 12 of the cart 10 located on the upper side is provided on the mounting surface 11A of the base portion 11. The depth (recess amount H2) of the article storage recess 13 is longer than the depth (recess amount H2) of the caster portion recess 13 and is also longer than the height (length 11Q) of the convex portion 11P. That is, since the depth (recess amount H2) of the article storage recess 13 is longer than the depth (recess amount H2) of the caster portion recess 11C and the height (length 11Q) of the convex portion 11P, with respect to the function of the caster portion recess 11C supporting the caster portion 12, the function of the article storage recess 13 storing articles, and the function of the convex portion 11P preventing the loaded object S1 from falling from the mounting surface 11A, each can fully exhibit its function.

[0078] In the cart 10 of the first to third embodiments described above, the lower end of the bottom portion 13B of the article storage recess 13 is flush with the lower end of the base portion 11 or is located above the lower end of the base portion 11. Therefore, the lower end of the bottom portion 13B of the article storage recess 13 does not protrude below the lower end of the base portion 11. In this way, when the bottom portion 13B of the article storage recess 13 does not protrude below the lower end of the base portion 11, even if there are obstacles or the like on the traveling road surface during the traveling of the cart 10, the bottom portion 13B of the article storage recess 13 is less likely to be damaged. Also, when stacking the upper cart 10 on the mounting surface 11A of the base portion 11 of the lower cart 10, the bottom portion 13B of the article storage recess 13 is less likely to hit the articles stored in the article storage recess 13 of the lower cart 10. Therefore, it is less likely that a problem (for example, scratching the surface of the other party or the possibility of damage to itself) will occur due to the article hitting the bottom portion 13B.

[0079] In the cart 10 of the first to third embodiments described above, peripheral ribs 13X and 13Y surrounding the article storage recess 13 are provided around the article storage recess 13. Since the lower ends of the peripheral ribs 13X and 13Y or the lower end of the bottom 13B of the article storage recess 13 are flush with or located above the lower end of the base 11, the peripheral ribs 13X and 13Y of the article storage recess 13 do not protrude below the lower end of the base 11, and the same effect is achieved.

[0080] In the cart 10 of the first to third embodiments described above, when the lower ends of the peripheral ribs 13X and 13Y of the article storage recess 13 or the lower end of the bottom 13B of the article storage recess 13 do not protrude beyond the lower end of the base 11, even if there are obstacles or the like on the running surface when the cart 10 is running, the lower ends of the peripheral ribs 13X and 13Y of the article storage recess 13 or the lower end of the bottom 13B of the article storage recess 13 are less likely to be damaged. Also, when stacking the upper cart 10 on the placement surface 11A of the base 11 of the lower cart 10, the lower ends of the peripheral ribs 13X and 13Y of the article storage recess 13 or the lower end of the bottom 13B of the article storage recess 13 are less likely to hit the articles stored in the article storage recess 13 of the lower cart 10. Therefore, it is less likely that problems (such as damaging the surface of the article) will occur due to the articles hitting the lower ends of the peripheral ribs 13X and 13Y or the lower end of the bottom 13B of the article storage recess 13.

[0081] In the cart 10 of the first to third embodiments described above, peripheral ribs 13X and 13Y composed of a side rib 13X and the other side rib 13Y surrounding the article storage recess 13 are provided. By connecting the connecting portion 13P of the peripheral rib 13X and the peripheral rib 13Y to the outer edge ribs (long side ribs 16, 16A, 16B, short side ribs 17, 17A, 17B) extending outward from the peripheral ribs 13X and 13Y of the article storage recess 13, it is desirable to increase the mechanical strength with a rib group surrounding the article storage recess 13.

[0082] In the carriage 10 of the first to third embodiments described above, peripheral ribs 13X and 13Y composed of one-side rib 13X and the other-side rib 13Y surrounding the article storage recess 13 are provided, and reinforcing ribs 13M and 13N for reinforcing the bottom 13B of the article storage recess 13 are coupled to the peripheral ribs 13X and 13Y of the article storage recess 13. By using the reinforcing ribs 13M and 13N for reinforcing the article storage recess 13, it is desirable to increase the mechanical strength.

Explanation of Reference Numerals

[0083] 10... carriage, 11... base, 11A... mounting surface, 11P... convex portion 11C... recess for caster portion, 11H... depth of recess for caster portion 11Q... height of convex portion, 12... caster (caster portion) 13... article storage recess, 13A... through hole, 13B... bottom 13X... peripheral rib (one-side rib), 13Y... peripheral rib (the other-side rib) 13P... connecting portion, 13M, 13N... reinforcing ribs, reinforcing ribs 14, 15... holes for handle 16, 16A, 16B... long-side ribs (outer edge ribs) 17, 17A, 17B... short-side ribs (outer edge ribs) 18, 19... edge base portions 23, 33... recesses (article storage recesses) S1... loaded object, S2... fixing belt (fastening tool, article) H1... thickness of loading platform, H2... amount of recess of article storage recess

Claims

1. A plate-shaped platform on which an object can be placed, A caster portion attached to the underside of the base portion; In a bogie equipped with The platform portion has an item storage recess that is recessed in a thickness direction from the placement surface and is capable of storing items including a fixing belt or the like.

2. A plate-shaped platform on which an object can be placed, A caster portion attached to the underside of the base portion; In a bogie equipped with The platform portion has an item storage recess formed to be recessed in a plate thickness direction from the placement surface, A cart, characterized in that the recessed portion for storing items has a recessed amount that is less than the plate thickness of the base portion and is within a range of 70% or more of the plate thickness.

3. A plate-shaped platform on which an object can be placed, A caster portion attached to the underside of the base portion; In a bogie equipped with The cart is characterized in that the base has an item storage recess inside the outer edge of the base, which is capable of storing items including a fixing belt and the like.

4. The bogie according to any one of claims 1 to 3, A cart according to claim 1, wherein the bottom of the item storage recess has an elastically deformable property.

5. The bogie according to any one of claims 1 to 3, The base portion includes a handle hole formed in the vertical direction, and In order to stack the caster part of the upper dolly on the loading surface of the base part of the lower dolly, a caster part recess for supporting the caster part of the dolly located on the upper side is provided on the loading surface of the base part, The depth of the article storage recess is greater than the depth of the caster recess, and is shallower than the depth of the handle hole.

6. The bogie according to any one of claims 1 to 3, The outer edge of the base portion is provided with a protrusion rising from the placement surface, In order to stack the caster part of the upper dolly on the loading surface of the base part of the lower dolly, a caster part recess for supporting the caster part of the dolly located on the upper side is provided on the loading surface of the base part, A dolly characterized in that the depth of the item storage recess is greater than the depth of the caster recess and greater than the height of the protrusion.

7. The bogie according to any one of claims 1 to 3, A cart characterized in that the lower end of the bottom of the item storage recess is flush with the lower end of the base or is located above the lower end of the base.

8. The bogie according to any one of claims 1 to 3, A cart characterized in that a peripheral rib is provided around the item storage recess to surround the item storage recess, and the lower end of the peripheral rib or the lower end of the bottom of the item storage recess is located flush with or above the lower end of the base portion.

9. The bogie according to any one of claims 1 to 3, A trolley is characterized in that a peripheral rib consisting of a one-side rib and an other-side rib that surrounds the item storage recess is provided around the item storage recess, and the connecting portion of the one-side rib and the other-side rib is connected to an outer edge rib extending outward from the peripheral rib of the item storage recess.

10. The bogie according to any one of claims 1 to 3, A cart characterized in that a peripheral rib consisting of a one-side rib and an other-side rib that surrounds the item storage recess is provided around the item storage recess, and a reinforcing rib that reinforces the bottom of the item storage recess is attached to the peripheral rib.

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