Storage box with casters

Abstract

To provide a caster-fitted storage box which can secure satisfactory storageability even if large diameter casters are adopted, and in which a storage body can exhibit high strength.SOLUTION: In a caster-fitted storage box, the bottom four corner parts of a storage body 1 are provided with caster cover parts 3, casters 2 are disposed at the inside of the caster cover parts 3 in a state where an upper half is stored and a lower half is exposed to the lower part of a bottom part in the storage body 1, the internal bottom part of the storage body 1 is formed into a flat bottom face 4, a circumferential part of the flat bottom face 4 is provided with a groove-shaped recessed part 5 recessed downward from the flat bottom face 4, the storage body 1 is integrally molded into a shape in which the flat bottom face 4 and a wall part 6 are connected via the groove-shaped recessed part 5, and the cast cover parts 3 are disposed at the inside of the groove-shaped recessed part 5 in a state of not being projected to a part upper than the flat bottom face 4.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to a storage box with casters that is easy to move. [Background technology]

[0002] BACKGROUND ART Conventionally, storage boxes made of synthetic resin have been used to conveniently store clothes, small items, and the like.

[0003] Some storage boxes of this type are equipped with casters at the four corners of the bottom for easy movement (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Design Registration No. 1448787 Summary of the Invention [Problem to be solved by the invention]

[0005] Storage boxes with casters are popular because larger diameter caster wheels make them easier to move. However, when the diameter of the casters is increased, the caster covers (wheel housings) that house the wheels protrude further inward from the bottom and side walls of the box. This creates a problem when storing a large number of CD and DVD cases, for example, as the protruding caster covers get in the way and make it impossible to store them in an orderly manner, resulting in a decrease in storage efficiency.

[0006] The present invention focuses on the problems with such storage boxes with casters and aims to solve them by providing a storage box with casters that can ensure good storage capacity even when large diameter casters are used, without the caster cover parts protruding inward from the inner bottom and side walls of the storage body, and that furthermore has reinforced the storage body to provide high strength. [Means for solving the problem]

[0007] The gist of the present invention will be explained with reference to the accompanying drawings.

[0008] Store items in storage A storage box with casters, in which caster cover parts 3 are provided at the four corners of the bottom of a box-shaped storage body 1 made of synthetic resin, casters 2 are arranged with their upper halves housed within the caster cover parts 3 and their lower halves exposed below the bottom of the storage body 1, and the casters 2 are rotatably provided at the four corners of the bottom of the storage body 1, The storage body 1 is surrounded by a wall portion 6. The stored items are placed and stored. The inner bottom is formed into a flat bottom surface 4, A recess 5 recessed downward from the flat bottom surface 4 is provided on the side or periphery of the flat bottom surface 4, and the storage body 1 is integrally molded in a shape in which the flat bottom surface 4 and the wall portion 6 are connected via this recess 5, and this recess 5 is configured as a groove-like recess 5 having a length along the side or periphery of the flat bottom surface 4. It , The caster cover parts 3 are disposed in the groove-shaped recessed parts 5 at positions corresponding to the four corners of the bottom of the storage body 1 in a state where they do not protrude above the flat bottom surface 4. The groove-like recess 5 is provided between the vertical inner surface of the wall portion 6 surrounding the flat bottom surface 4 and the flat bottom surface 4, but it is configured so that there is nothing protruding above the height of the flat bottom surface 4. This relates to a storage box with casters.

[0009] The storage body 1 also relates to the storage box with casters described in claim 1, characterized in that the lower end of the wall portion 6 is positioned at a position at least equal to the lower end of the upper half of the caster 2, or positioned lower than the lower end of the upper half of the caster 2, and is configured so that when the caster 2 touches the ground surface, the lower end of the wall portion 6 is positioned close to the ground surface.

[0010] The storage box with casters described in claim 1 is also characterized in that the groove-like recess 5 is provided around the entire periphery of the flat bottom surface 4, and is formed in a shape that connects this groove-like recess 5 with the entire periphery of the lower end of the wall portion 6. [Effects of the Invention]

[0011] Because the present invention is configured as described above, even if large-diameter casters that are easy to move are used, the caster cover portion in which the upper half of the caster is stored is located within a recess provided on the edge or periphery of the flat bottom surface and does not protrude above the flat bottom surface, so the caster cover portion does not get in the way inside the storage body and items can be stored efficiently.Furthermore, because the recess is molded integrally with both the flat bottom surface and the wall portion and is configured as a groove-like recess with a length that follows the edge or periphery of the flat bottom surface, both the flat bottom surface and the wall portion are reinforced by the recess, resulting in a storage body that exhibits high strength and is less likely to deform, making it an extremely practical storage box with casters.

[0012] Furthermore, in the invention described in claim 2, the lower end of the wall of the storage body is positioned at the same position as the lower end of the upper half of the caster, or at a position lower than the lower end of the upper half of the caster, and is configured so that the lower end of this wall is positioned close to the ground surface when the caster touches the ground surface.As a result, there is a small gap between the lower end of the wall and the ground surface, making it more practical as it is difficult for dust and other debris to get under the storage body, resulting in a storage box with casters.

[0013] In addition, in the invention described in claim 3, the flat bottom surface and the wall portion are reinforced all around by the recesses, increasing the strength of the storage body, making the storage box with casters even more practical. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 is a perspective view showing the present embodiment. [Figure 2] FIG. 1 is a front view showing the present embodiment. [Figure 3] FIG. 2 is a perspective view showing the present embodiment from below. [Figure 4] FIG. 2 is a perspective view showing the present embodiment with the cover removed. [Figure 5] FIG. 2 is a partially enlarged cross-sectional side view showing the present embodiment. [Figure 6] FIG. 2 is an enlarged perspective cross-sectional view showing the present embodiment with the cover removed. [Figure 7] FIG. 10 is a perspective view showing the state in which the present embodiment is used in combination with another storage box. DETAILED DESCRIPTION OF THE INVENTION

[0015] The best mode for carrying out the present invention will now be briefly described with reference to the accompanying drawings, illustrating the operation of the present invention.

[0016] The storage box with casters of the present invention has caster cover parts 3 provided at the four corners of the bottom of a box-shaped storage body 1 made of synthetic resin, and casters 2 arranged with their upper half housed within the caster cover parts 3 and their lower half hanging down and exposed, and these casters 2 are rotatably provided at the four corners of the bottom of the storage body 1. In other words, the storage box with casters of the present invention can be freely moved by the user via the casters 2.

[0017] In addition, the storage body 1 of the present invention has an internal bottom surrounded by a wall 6 formed as a flat bottom 4, and a recess 5 recessed downward from the flat bottom 4 is provided between the side or peripheral part of this flat bottom 4 and the wall 6, and the flat bottom 4 and the wall 6 are integrally molded in a shape that connects them via this recess 5, and this recess 5 is configured as a groove-like recess 5 having a length that follows the side or peripheral part of the flat bottom 4, and the caster cover part 3 is arranged within this recess 5 so as not to protrude above the flat bottom 4.

[0018] Therefore, even if large diameter casters 2 that are easy to move are used, the caster cover parts 3 in which the upper halves of the casters 2 are stored are located in the recessed parts 5 and do not protrude above the flat bottom surface 4, so the caster cover parts 3 do not get in the way when storing items on the flat bottom surface 4.

[0019] Therefore, it is possible to easily employ large diameter casters 2 that are easy to move, and even if it is desired to store a large number of items such as CD or DVD cases in the storage body 1, they can be lined up in an orderly fashion on the flat bottom surface 4 and stored efficiently in the storage body 1, regardless of the presence of the caster cover parts 3.

[0020] Furthermore, the storage body 1 of the present invention exhibits high strength because both the flat bottom surface 4 and the wall portion 6 are reinforced by the groove-like recess 5 having a length along the side or peripheral portion of the flat bottom surface 4.

[0021] Furthermore, for example, the storage body 1 may be configured such that the lower end of the wall 6 is positioned at a position at least equal to the lower end of the upper half of the caster 2, or lower than the lower end of the upper half of the caster 2, and the lower end of this wall 6 is positioned close to the ground surface when the caster 2 touches the ground surface.When configured in this way, the gap between the lower end of the wall 6 and the ground surface is small, making it difficult for dust and other debris to enter below the storage body 1 through this small gap. [Example]

[0022] Specific embodiments of the present invention will be described with reference to the drawings.

[0023] The storage box with casters in this embodiment has caster cover parts 3 provided at the four corners of the bottom of a box-shaped storage body 1 made of synthetic resin, and casters 2 arranged with their upper half stored within this caster cover part 3 and their lower half hanging down and exposed, and these casters 2 are also provided at the four corners of the bottom of the storage body 1 so that they can rotate freely.

[0024] 1, the storage unit 1 is integrally molded as an open-top box-like body with walls 6 rising from the entire periphery of a flat bottom 4 that is generally rectangular in plan view. In other words, the storage unit 1 is integrally molded in a shape where the inner bottom is surrounded on all four sides by walls 6 and is formed on the flat bottom 4. In the following description of this embodiment, the direction along the long sides of the storage unit 1 is defined as the left-right direction, and the direction along the short sides is defined as the front-rear direction.

[0025] In addition, a recess 5 is provided around the entire periphery of the flat bottom surface 4, recessed downward from the flat bottom surface 4, and the flat bottom surface 4 and the entire periphery of the lower end of the wall portion 6 are connected via this recess 5. The storage body 1 is integrally molded (see FIGS. 4 and 6). In other words, the recess 5 is configured as a groove-like recess 5 that is annular in plan view and has a length along the circumferential direction of the wall portion 6. Although not shown, the groove-like recess 5 may be provided only on a pair of front and rear long sides of the flat bottom surface 4, or may be provided only on a pair of left and right short sides.

[0026] Within this annular groove-like recess 5, at both the left and right ends of the portion corresponding to the front and rear long sides (at positions corresponding to the four corners of the bottom of the storage body 1), the caster cover portions 3 are provided (integrally molded) so as not to protrude above the flat bottom surface 4, and have a semicircular recessed shape that is concave upward when viewed from the front and rear, with the caster cover portions 3 on the front side of the storage body 1 opening in a semicircular shape at the front and the caster cover portions 3 on the rear side of the storage body 1 opening in a semicircular shape at the rear (see Figures 4 to 6).

[0027] The casters 2 are arranged in the caster cover part 3 configured in this manner, with the upper half housed and the lower half hanging down and exposed, and the casters 2 are arranged so that the axial direction of their rotation axes 11 coincides with the front-to-back direction of the storage body 1, and are provided at the four corners of the bottom of the storage body 1 so as to be able to rotate freely.

[0028] More specifically, a pair of thin plate-shaped bearing pieces 9 are integrally molded in a hanging manner below each of the four caster cover parts 3, facing each other at a small distance in the front-to-rear direction of the storage body 1, and the casters 2 are rotatably supported between the pair of bearing pieces 9. In other words, the casters 2 are rotatably provided at the four corners of the bottom of the storage body 1 via the bearing pieces 9, and the storage body 1 is configured to be movable in the left-to-right direction (the length direction of the long sides of the storage body 1) via the four casters 2.

[0029] Furthermore, the casters 2 employed in this embodiment are equipped with wheels 10 of a relatively large diameter that are easy to move. That is, the caster cover parts 3 that can accommodate the upper halves of these large-diameter casters 2 (wheels 10) and that have a shape that does not protrude above the flat bottom surface 4 are provided in the groove-like recessed parts 5. In other words, the storage body 1 is integrally molded with a shape in which the flat bottom surface 4 is raised so that the caster cover parts 3 that can accommodate the upper halves of these large-diameter casters 2 (wheels 10) fit into the groove-like recessed parts 5.

[0030] To explain the casters 2 in more detail, the rotating shafts 11 protrude from both sides of the center of the wheels 10, and the rotating shafts 11 on both sides are rotatably supported by the pair of bearing pieces 9, with a disk-shaped decorative plate 12 provided at the tip of one of the rotating shafts 11 (see Figure 5), and the wheels 10 are supported by the bearing pieces 9 so that the decorative plate 12 is located outside (the front and rear sides) of the storage unit 1, and therefore the decorative plate 12 is disposed at the front opening and the rear opening of each caster cover part 3. In other words, only the decorative plate 12 is visible from the outside of the storage unit 1 (the wheels 10 and bearing parts are not visible), resulting in a good appearance (see Figures 1 to 3).

[0031] In addition, in this embodiment, the storage body 1 is integrally molded in a shape such that the lower end of the wall portion 6 is positioned at the same position as the lower end of the upper half of the caster 2, and is configured so that when the caster 2 touches the ground surface, the lower end of the wall portion 6 is positioned close to the ground surface.

[0032] That is, this embodiment is configured so that the gap between the lower end of the wall 6 and the ground surface is small, which makes it difficult for dust and other debris to get into the lower part of the storage body 1 through this small gap, and also provides the storage body 1 with a stable and well-presented appearance without feeling too high-waisted. Although not shown, the lower end of the wall 6 may be formed in a shape that is positioned lower than the lower end of the upper half of the caster 2.

[0033] The storage body 1 of this embodiment also includes a cover 13 made of synthetic resin and having a generally rectangular shape in plan view, which closes the upper opening in an openable and detachable manner.

[0034] To explain the opening, closing, and detaching structure of the lid body 13, buckles 14 are rotatably mounted on the top of the left and right wall portions 6 of the storage body 1, and when the left and right buckles 14 are rotated and engaged with the left and right portions of the lid body 13 that close the top opening of the storage body 1, the lid body 13 is held in a closed state, and when the left and right buckles 14 are rotated and disengaged from the left and right portions of the lid body 13 in this closed state, the lid body 13 can be removed and the top opening of the storage body 1 can be opened.

[0035] In addition, the lid body 13 in the drawing has caster storage recesses 15 (molded integrally) at the four corners of the top surface that can accommodate approximately the lower half of the caster 2, and is configured so that another storage box with casters can be stacked on top of this lid body 13 that closes the upper opening of the storage body 1.

[0036] In addition, the storage body 1 of this embodiment has a support step 7 formed (integrally molded) around the entire circumference in the vertical middle part of the wall portion 6, and is configured so that the outer bottom periphery of another storage box 8 (for example, of a different size) can be placed on this support step 7, making it possible to use it as a multi-tiered storage system (see Figure 7).

[0037] The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate. [Explanation of symbols]

[0038] 1 Storage unit 2 Casters 3 Caster cover 4 flat bottom 5 recess 6 Wall

Claims

1. A storage box with casters, in which caster cover sections are provided at the four corners of the bottom of a box-shaped storage body made of synthetic resin for storing stored items, and casters are arranged with their upper halves stored within the caster cover sections and their lower halves exposed below the bottom of the storage body, and the casters are provided at the four corners of the bottom of the storage body so as to be able to rotate freely, The storage body is surrounded by a wall portion, and an inner bottom portion on which the storage items are placed and stored is formed as a flat bottom surface, A recess is provided on the side or periphery of the flat bottom surface, recessed downward from the flat bottom surface, and the storage body is integrally molded in a shape in which the flat bottom surface and the wall portion are connected via this recess, and this recess is configured as a groove-like recess having a length along the side or periphery of the flat bottom surface, A storage box with casters is characterized in that the caster cover portion is arranged within this groove-like recess at a position corresponding to the four corners of the bottom of the storage body so as not to protrude above the flat bottom surface, and the groove-like recess is provided between the vertical inner surface of the wall portion surrounding the flat bottom surface and the flat bottom surface, but nothing protrudes above the height of the flat bottom surface.

2. The storage box with casters according to claim 1, characterized in that the lower end of the wall of the storage body is positioned at a position at least equal to the lower end of the upper half of the caster, or at a position lower than the lower end of the upper half of the caster, and is configured so that the lower end of the wall is positioned close to the ground surface when the caster touches the ground surface.

3. The storage box with casters according to claim 1, characterized in that the groove-like recess is provided around the entire periphery of the flat bottom surface, and is formed in a shape that connects this groove-like recess with the entire periphery of the lower end of the wall portion.

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