Medical waste storage box
The cardboard medical waste storage box with a double-wall structure addresses the challenges of resin boxes by providing robustness, ease of incineration, and compact storage, effectively managing medical waste storage and disposal.
Patent Information
- Application Number
- JP2023197139
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2023-11-21
- Publication Date
- 2025-06-02
AI Technical Summary
Existing medical waste storage boxes, typically made of resin, are robust but difficult to incinerate and take up significant space when not in use.
A medical waste storage box made of cardboard with a double-wall structure, featuring side wall flaps that overlap the side walls and a lid with a similar double-wall design, providing robustness and ease of incineration while being compact when stored.
The cardboard medical waste storage box is robust enough to handle sharp medical waste without piercing, easy to incinerate without generating harmful gases, and compact for storage, addressing the limitations of resin boxes.
Smart Images
Figure 2025083646000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a medical waste storage box that is disposed of as a whole box while storing medical waste.
Background Art
[0002] Medical waste such as used gauze, absorbent cotton, paper diapers, urine test cups, dialyzers (hemodialysis machines), syringes, or containers containing blood or serum to which blood or body fluid adheres is disposed of as a whole box while being stored in a dedicated box (medical waste storage box). Secondary contamination due to the exposure or leakage of medical waste outside the box must be avoided during the storage, transportation, and disposal operations of the medical waste storage box. Therefore, the medical waste storage box is required to be robust.
[0003] Conventionally, resin boxes have been widely used as medical waste storage boxes. Resin boxes have the advantage of high mechanical strength and robustness. However, resin boxes have problems such as the generation of harmful gases when incinerated, making incineration disposal difficult, and bulkiness during storage when not in use.
Summary of the Invention
Problems to be Solved by the Invention
[0004] Therefore, in view of the above circumstances, an object of the present invention is to provide a medical waste storage box that is robust, easy to incinerate, and does not take up much space during storage when not in use.
Means for Solving the Problems
[0005] To solve the above problems, the medical waste storage box according to the present invention "comprises a cardboard box body, The box body four side walls that form a square tube, and Four second side wall flaps extending from the upper edge of each of the side walls or extending from each of four top walls provided in a strip along the upper edge of each of the side walls, Four bottom flaps extending from the lower edge of each of the side walls and forming the bottom of the box, Each of the second side wall flaps overlaps with one of the side walls over the entire height to form a double wall.
[0006] In the box body of this configuration, each of the four second side wall flaps overlaps with one of the side walls over the entire height to form a double wall. Therefore, although it is made of cardboard, the box body is robust. Also, due to the double wall structure, even if the medical waste contained has sharp parts, the risk of it piercing through the box is reduced. And since it is made of cardboard, it is easier to incinerate compared to conventional resin containers.
[0007] In addition, since the box body is made of cardboard, it can be folded flat with the four side walls in a square tube shape. Therefore, it does not take up much space when stored unused, and when in use, it can quickly be formed into a three-dimensional shape from the flat-folded state.
[0008] The medical waste storage box according to the present invention, in addition to the above configuration, Each of the second side wall flaps extends from one of the top walls, And a plate body can be sandwiched between the overlapping second side wall flap and the side wall.
[0009] In this configuration, since the second side wall flap extends from the top wall, a space is formed between the side wall and the second side wall flap by the depth length of the top wall, and a plate body is sandwiched in this space. Therefore, a plate body is added to the double wall structure composed of the side wall and the second side wall flap to form a multi-layer structure. As a result, the box body becomes even more robust, and when the medical waste contained has sharp parts, the risk of it piercing through the box is further reduced.
[0010] In addition to the above configuration, the medical waste container according to the present invention "further comprises a lid made of cardboard, The lid has a rectangular lid top surface, and four lid side walls extending from each of the four sides of the lid top surface, and four second lid side wall flaps extending from each of the four lid side walls, and each of the second lid side wall flaps may be configured to overlap with one of the lid side walls over the entire height to form a double wall."
[0011] The medical waste container of this configuration includes a lid, and in the lid, each of the four second lid side wall flaps overlaps with one of the lid side walls over the entire height to form a double wall. Therefore, although it is made of cardboard, the lid is robust, and the whole combination of the box body and the lid becomes robust.
[0012] Also, since the lid also has a double wall structure, even if the medical waste being stored has sharp parts, the risk of it penetrating the lid is reduced. And since both the box body and the lid are made of cardboard in addition to the box body, it is easy to incinerate the combination of the box body and the lid with medical waste stored inside.
Advantages of the Invention
[0013] As described above, according to the present invention, it is possible to provide a medical waste container that is robust, easy to incinerate, and does not take up much space when stored unused.
Brief Description of the Drawings
[0014]
Figure 1
Figure 2
Figure 3
Figure 4
Figure 5
Figure 6
Figure 7
Figure 8
Embodiments for Carrying Out the Invention
[0015] Hereinafter, a medical waste container which is a specific embodiment of the present invention will be described with reference to the drawings. First, the medical waste container of the first embodiment will be described with reference to FIGS. 1 to 6.
[0016] The medical waste container of the first embodiment includes a bottomed cylindrical box body 1 and a lid 3 that closes the opening of the box body 1. The box body 1 and the lid 3 are each manufactured from a single blank 1b, 3b punched out from corrugated cardboard in which a core formed in a corrugated shape is disposed between the front and back liners.
[0017] The box body 1 has four side walls 11, 12, four top walls 21, 22, four second side wall flaps 31, 32, and four bottom flaps 41, 42. Specifically, the four side walls 11, 12 are composed of a pair of opposing side walls 11 and a pair of opposing side walls 12, and as shown in the developed view of FIG. 1, in the blank 1b that is the basis of the box body, the side walls 11 and the side walls 12 are continuously provided alternately. Further, an adhesive piece 15 is continuously provided on the side wall 11 or the side wall 12 that is the end among the four continuously provided side walls 11, 12. Here, the case where the adhesive piece 15 is continuously provided on the side wall 11 is illustrated.
[0018] When the direction in which the four side walls 11 and 12 are continuously provided in the blank 1b is referred to as the width direction, in this embodiment, the length of the side wall 11 in the width direction is set to be larger than the length of the side wall 12 in the width direction. When the direction orthogonal to the width direction on the surfaces of the side walls 11 and 12 is the vertical direction, the lengths (heights) of the four side walls 11 and 12 in the vertical direction are equal.
[0019] In one pair of the pair of side walls 11 and the pair of side walls 12, a notch 17 for forming a handle 16 is formed. This notch 17 is U-shaped, and a folding line 19 is formed so as to connect the open ends of the U-shape. Note that an arcuate notch 18 is formed adjacent to the most protruding portion in the U-shape of the notch 17.
[0020] A narrow strip-shaped top wall 21 extends along the upper end sides of each of the pair of side walls 11, and a narrow strip-shaped top wall 22 extends along the upper end sides of each of the pair of side walls 12. When the direction orthogonal to the width direction on the surfaces of the top walls 21 and 22 is referred to as the depth direction, the lengths of the top walls 21 and 22 in the depth direction are constant, and for example, can be 6 mm to 12 mm.
[0021] In each of the pair of top walls 21, a second side wall flap 31 extends from the side opposite to the boundary line with the side wall 11, and in each of the pair of top walls 22, a second side wall flap 32 extends from the side opposite to the boundary line with the side wall 12. When the direction orthogonal to the width direction on the surfaces of the second side wall flaps 31 and 32 is the vertical direction, the lengths (heights) of the four second side wall flaps 31 and 32 in the vertical direction are equal to the lengths (heights) of the four side walls 11 and 12 in the vertical direction.
[0022] In this embodiment, this height (the height of the second side wall flaps 31 and 32, the height of the side walls 11 and 12) is set to be greater than the width length of the side wall 12, which is the shorter one in terms of the width length among the side walls 11 and 12. Therefore, a folding line 37 parallel to the width direction is provided on the second side wall flap 31 with the longer width length among the second side wall flaps 31 and 32. The distance from the upper end side of the side wall 11 to the folding line 37 is set to be shorter than the width length of the side wall 12.
[0023] In each of the second side wall flaps 31 and 32, the end sides opposite to the top wall 21, 22 side (the side wall 11, 12 side) are free ends, and the insertion pieces 35 protrude from the center thereof.
[0024] Bottom flaps 41 extend from the lower end sides of each of the pair of side walls 11, and bottom flaps 42 extend from the lower end sides of each of the pair of side walls 12. In each of the bottom flaps 41 and 42, the end sides opposite to the boundary lines with the side walls 11 and 12 are free ends.
[0025] When the direction orthogonal to the width direction on the surface of the bottom flaps 41 and 42 is defined as the depth direction, the length in the depth direction of one pair among the pair of bottom flaps 41 and the pair of bottom flaps 42 is set such that an overlapping portion is formed when they are butted together. Here, the case where the bottom flap 41 overlaps when butted together is exemplified, and its length in the depth direction is set to be greater than half of the length in the width direction of the side wall 12. In the vicinity of the center at the free end of each of the bottom flaps 41, a concave notch 44 is formed. Due to the presence of this notch 44, when the pair of bottom flaps 41 are butted together, their free ends can be engaged with each other.
[0026] Also, a folding line 47 is formed from one end of the notch 44 of each of the bottom flaps 41 toward the nearer end of both ends at the boundary line between the bottom flap 41 and the side wall 11. The angle formed by the boundary line between the bottom flap 41 and the side wall 11 and the folding line 47 is 45 degrees, and the two folding lines 47 are inclined in the same direction in the blank 1b.
[0027] In each of the four bottom flaps 41 and 42, a small hole portion 45 is provided through the center of the boundary line with the side walls 11 and 12. The shape and size of these small hole portions 45 are set to the shape and size into which the insertion pieces 35 protruding from the second side wall flaps 31 and 32 can be inserted.
[0028] In addition to the folding lines 19, 37, and 47, a plurality of folding lines are formed on the blank 1b. Specifically, the lower edges of the side walls 11 and 12 (the boundary lines between the side walls 11 and 12 and the bottom flaps 41 and 42), the upper edges of the side walls 11 and 12 (the boundary lines between the side walls 11 and 12 and the top walls 21 and 22), the boundary lines between the top walls 21 and 22 and the second side wall flaps 31 and 32, and the boundary line between the adhesive piece 15 and the side wall (here, the side wall 11) are folding lines. That is, folding lines are formed at the base ends of the bottom flaps 41 and 42, the top walls 21 and 22, the second side wall flaps 31 and 32, and the adhesive piece 15, respectively. The folding lines are formed by compressing the cardboard.
[0029] When assembling the box body 1 from the blank 1b having the above configuration, the adhesive piece 15 at one end of both ends of the four connected side walls 11 and 12 is folded along the folding line at the base end, and after applying an adhesive, it is adhered to the inner surface of the side wall (here, the side wall 12) at the other end. Thereby, the four side walls 11 and 12 form a rectangular tube.
[0030] Also, each of the bottom flaps 41 and 42 is folded along the folding line at the base end. On the inner surface of the bottom flap 41, an adhesive is applied to the portion on the free end side from the folding line 47, and while adhering to the outer surface of the bottom flap 42 adjacent to this portion, the pair of bottom flaps 41 are butted against each other and the cutout portions 44 of each other are engaged.
[0031] On one hand, the top walls 21 and 22 are each bent along the base folding line, and the second side wall flaps 31 and 32 are each bent along the base folding line. At this time, the second side wall flap 31 is bent so as to overlap the side wall 11 from the inside, and the second side wall flap 32 is bent so as to overlap the side wall 12 from the inside. In this embodiment, since the heights of the second side wall flaps 31 and 32 are set to be longer than the width length of the side wall 12, when the second side wall flap 31 is bent, it interferes with the opposing side wall 11. Therefore, as described above, the folding line 37 is provided on the second side wall flap 31. Thus, as shown in FIG. 2, by folding the second side wall flap 31 inward with the portion on the free end side of the folding line 37 bent outward, the second side wall flap 31 can be bent while avoiding interference with the opposing side wall 11. By inserting the insertion pieces 35 provided at the free ends of the second side wall flaps 31 and 32 into the small hole portions 45 provided in the bottom flaps 41 and 42 respectively, a state is maintained in which the pair of second side wall flaps 31 overlap the side wall 11 respectively, and the pair of second side wall flaps 32 overlap the side wall 12 respectively.
[0032] As described above, since the heights of the second side wall flaps 31 and 32 are the same as the heights of the side walls 11 and 12, the second side wall flaps 31 and 32 overlap the side walls 11 and 12 over the entire height respectively, forming a double wall. Also, in a state where the box body 1 is placed on a horizontal plane, the top walls 21 and 22 form a horizontal frame-shaped surface at the opening edge of the box body 1.
[0033] Also, in the side wall 12, by bending and raising the portion surrounded by the notch 17 along the folding line 19, the handle 16 is formed. At that time, by hooking the fingertips on the notch portion 18, the handle 16 can be easily raised.
[0034] On one hand, as shown in Fig. 5, the cover body 3 has a cover top surface 50, four cover side walls 61, 62, four locking pieces 71, and four second cover side wall flaps 81, 82 before assembly. Specifically, the cover top surface 50 is a rectangle surrounded by a pair of first sides 51 and a pair of second sides 52. The pair of first sides 51 is slightly longer than the width length of the side wall 11, and the pair of second sides 52 is slightly longer than the width length of the side wall 12. The four cover side walls 61, 62 consist of a pair of cover side walls 61 extending from each of the first sides 51 and a pair of cover side walls 62 extending from each of the second sides 52. The length of the cover side wall 61 in the direction perpendicular to the first side 51 is the same as the length of the cover side wall 62 in the direction perpendicular to the second side 52. Since this length becomes the height of the assembled cover body 3, it is referred to as the height of the cover side walls 61, 62.
[0035] Among the four second cover side wall flaps 81, 82, a pair of second cover side wall flaps 81 extend from the end sides opposite to the first side 51 in each of the pair of cover side walls 61, and the ends opposite to the cover side walls 61 are free ends. In each of the pair of cover side walls 61 and the pair of second cover side wall flaps 81, when the direction parallel to the first side 51 is referred to as the width direction, locking pieces 71 protrude from both ends in the width direction of the cover side wall 61. Hook-shaped locking portions 71f are provided at the tips of the locking pieces 71 respectively. The length of the locking piece 71 is set such that when the boundary line with the cover side wall 61 is bent and tilted toward the second side 52, the locking portions 71f of the two locking pieces 71 on both sides of the second side 52 engage with each other, and the total length of the two locking pieces 71 combined in this state is equal to the length of the second side 52. Also, the pair of second cover side wall flaps 81 have cutout portions 81f formed by notching the corner portions of the free ends at both ends in the width direction.
[0036] Of the four second lid side wall flaps 81 and 82, a pair of second lid side wall flaps 82 extend from the end sides opposite to the second side 52 in each of the pair of lid side walls 62, and the ends opposite to the lid side walls 62 are free ends. Each second lid side wall flap 82 has a partition wall 82b that extends in a very narrow strip shape along the boundary line with the lid side wall 62 at the base on the lid side wall 62 side. In the pair of second lid side wall flaps 82, if the direction parallel to the second side 52 is referred to as the width direction, the pair of second lid side wall flaps 82 each have a protruding piece 82f at both ends in the width direction. This protruding piece 82f is formed by notching the lid side wall 62 side while leaving the free end side at both ends in the width direction of the second lid side wall flap 82.
[0037] The length of the second lid side wall flap 81 in the direction orthogonal to the width direction is equal to the height of the lid side wall 61, and the length of the second lid side wall flap 82 in the direction orthogonal to the width direction is equal to the height of the lid side wall 62. As described above, since the heights of the lid side walls 61 and 62 are the same, the lengths of the second lid side wall flaps 81 and 82 in the direction orthogonal to the width direction are also the same, and are referred to as the height of the second lid side wall flaps 81 and 82.
[0038] The boundary lines (the first side 51 and the second side 52) between the lid top surface 50 and the lid side walls 61 and 62, the boundary line between the lid side wall 61 and the locking piece 71, the boundary line between the lid side wall 61 and the second lid side wall flap 81, the boundary line between the lid side wall 62 and the partition wall 82b, and the boundary line between the portion excluding the partition wall 82b and the partition wall 82b in the second lid side wall flap 82 are folding lines.
[0039] When assembling the lid body 3 from the blank 3b with the above configuration, each of the lid side walls 61 and 62 is bent at a right angle to the lid top surface 50. Then, the locking piece 71 bent along the boundary line with the lid side wall 61 is superimposed inside the lid side wall 62. Specifically, as shown in FIG. 6, the two locking pieces 71 extending in the same direction from one and the other of the pair of lid side walls 61 are tilted from both sides of the lid side wall 62 toward the lid top surface 50 while engaging their locking portions 71f with each other.
[0040] Furthermore, fold the second lid side wall flap 81 inward to overlap with the lid side wall 61. Also, fold the second lid side wall flap 82 inward from inside the locking piece 71. Since there is a partition wall 82b between the second lid side wall flap 82 and the lid side wall 62, a space for accommodating the locking piece 71 is formed between the second lid side wall flap 82 and the lid side wall 62. Therefore, the second lid side wall flap 82 and the lid side wall 62 overlap, and the locking piece 71 is sandwiched therebetween.
[0041] When the second lid side wall flap 81 is folded inward, a slit is formed between the notch portions 81f at both ends of the second lid side wall flap 81 and the locking piece 71. By inserting the protruding pieces 82f at both ends of the second lid side wall flap 82 into this slit, the state in which the second lid side wall flaps 81 and 82 are folded inward is maintained. As described above, since the heights of the second lid side wall flaps 81 and 82 are the same as the heights of the lid side walls 61 and 62, a double-wall structure is formed over the entire height.
[0042] In this way, the lid body 3 can be easily assembled from the blank 3b without the need for staples, adhesives, adhesive tapes, etc.
[0043] When accommodating medical waste, use it with the opening of the box body 1 assembled as described above closed with the lid body 3 assembled as described above. A plastic bag may be placed inside the box body 1, and the opening edge of the plastic bag may be hung from the inside to the outside along the opening edge of the box body 1, and then the opening of the box body 1 may be closed with the lid body 3.
[0044] In the box body 1, since the side wall 11 and the second side wall flap 31 overlap over the entire height, and the side wall 12 and the second side wall flap 32 overlap over the entire height to form a double wall, the mechanical strength is high and it is robust. Also, in the lid 3, in addition to the lid side wall 61 and the second lid side wall flap 81 overlapping over the entire height, and the lid side wall 62 and the second lid side wall flap 82 overlapping over the entire height to form a double wall, there is a locking piece 71 between the lid side wall 62 and the second lid side wall flap 82, resulting in a partially triple structure, so the mechanical strength is high and it is robust. Therefore, when storing or transporting the box with medical waste contained, even if the boxes are stacked, the box will not deform or be crushed, and secondary contamination due to the exposure or leakage of the contents can be prevented.
[0045] Also, since both the box body 1 and the lid 3 have a double wall structure, when containing medical waste with sharp parts, the risk of the sharp parts piercing through the box is reduced.
[0046] In addition, since the box body 1 is made of cardboard, the four side walls 11, 12 can be flattened and folded in a state where they are formed into a square tube by the adhesion of the adhesive pieces 15. Therefore, when not in use, they can be stacked in a flattened and folded state, and there is no bulkiness when storing them when not in use. In particular, in this embodiment, the bottom flap 41 has a folding line 47, and since the angle formed by the boundary line between the bottom flap 41 and the side wall 11 and the folding line 47 is 45 degrees, even when the bottom flap 41 and the bottom flap 42 are adhered, the box body 1 can be flattened and folded.
[0047] Furthermore, by causing a portion surrounded by the cut 17 in the side wall 12, a handle 16 is formed, and thus the box can be carried by gripping this portion. In a general cardboard box, when a handle is formed by a cut, a hole that penetrates the cardboard paper is formed in that portion. In contrast, in the present embodiment, since the second side wall flap 32 overlaps the side wall 12 provided with the cut 17 from the inside, even if the cut 17 for forming the handle 16 and the notch 18 for hanging a finger when raising the handle 16 are formed in the side wall 12, there is an advantage that a hole that penetrates the side surface of the box does not occur.
[0048] And since both the box body 1 and the lid body 2 are made of cardboard paper, when incinerating the medical waste in an accommodated state, unlike a resin container, harmful gases are less likely to be generated.
[0049] Next, the medical waste storage box of the second embodiment will be described with reference to FIGS. 7 and 8. The difference between the medical waste storage box of the second embodiment and that of the first embodiment lies in the configuration of the box body 2. The difference between the box body 2 and the box body 1 of the first embodiment is that the length in the depth direction of the top walls 21b, 22b in the box body 2 is larger than the length in the depth direction of the top walls 21, 22 in the box body 1, and that the box body 2 further includes four plate bodies 91, 92. The same components as those in the first embodiment are denoted by the same reference numerals, and detailed descriptions thereof are omitted.
[0050] In the first embodiment, the top walls 21, 22 constitute a flat frame-shaped surface at the opening edge of the box body 1. Having such a flat frame-shaped surface at the opening edge results in a good appearance of the box body. The top walls 21b, 22b in the box body 2 of the second embodiment not only make the appearance good by forming a flat frame-shaped surface at the opening edge, but also have the function of forming a space for accommodating the plate body 91 between the side wall 11 and the second side wall flap 31, and forming a space for accommodating the plate body 92 between the side wall 12 and the second side wall flap 32.
[0051] The plate bodies 91 and 92 are made of cardboard paper and are formed in a size that is slightly smaller than the side wall 11 and slightly smaller than the side wall 12, respectively, in a double-folded state. When assembling the box body 2, as shown in FIG. 7, when folding the second side wall flap 31 inward, the plate body 91 is sandwiched between the plate body 91 and the side wall 11, and when folding the second side wall flap 32 inward, the plate body 92 is sandwiched between the plate body 92 and the side wall 12.
[0052] As a result, the side surface of the box body 2 has a multi-layer structure of the side walls 11 and 12, the double-folded plate bodies 91 and 92, and the second side wall flaps 31 and 32. Therefore, the box body 2 has higher mechanical strength, and when containing medical waste having sharp parts, the risk that the sharp parts penetrate the box is further reduced.
[0053] Actually, when measuring the compressive strength (vertical compressive strength) in accordance with JIS Z0403-2 for both the box body 2 (internal volume: 45 liters) and a resin container body (company's own product) of the same capacity, the box body 2 had a high compressive strength about 1.5 times that of the resin container body.
[0054] Also, for the side surface (multi-layer structure) of the box body 2 and the side surface of the resin container body, a puncture resistance test was conducted in accordance with JIS Z1707 using an injection needle as a puncturing instrument. As a result, the side surface of the box body 2 had puncture resistance equal to or higher than that of the side surface of the resin container body.
[0055] And since the box body 2 can be flattened and folded with the plate bodies 91 and 92 sandwiched between the side walls 11 and 12 and the second side wall flaps 31 and 32, respectively, it does not take up much space when stored when not in use.
[0056] As described above, the preferred embodiments of the present invention have been described. However, the present invention is not limited to the above-described embodiments, and various improvements and design changes can be made without departing from the gist of the present invention as described below.
[0057] For example, in the above embodiment, the case where the width length of the side wall 11 in the box bodies 1 and 2 is greater than the width length of the side wall 12, and accordingly the first side 51 in the lid body 3 is longer than the second side 52 was exemplified. However, the present invention is not limited thereto, and the width length of the side wall 11 can be made equal to the width length of the side wall 12, and the length of the first side 51 can be made equal to the length of the second side 52.
[0058] Also, similar to the first embodiment, when the plate bodies 91 and 92 are not sandwiched between the side walls 11 and 12 and the second side wall flaps 31 and 32, the top walls 21 and 22 may not be provided, and the second side wall flaps 31 and 32 may directly extend from the side walls 11 and 12, respectively.
[0059] Furthermore, in the above, the case where the plate bodies 91 and 92 are made of cardboard was exemplified, but they may be made of wooden plates. Also, the case where a single plate body 91 or 92 is folded in two and sandwiched between the side walls 11 and 12 and the second side wall flaps 31 and 32 was exemplified, but the number of plate bodies sandwiched at one location may be plural.
[0060] In addition, the case where both the box bodies 1 and 2 and the lid body 3 are made of cardboard was exemplified, but only the box bodies may be made of cardboard and combined with a resin-made lid body.
[0061] Also, the medical waste storage box can be configured to include a bottom plate that is separate from the blank 1b that forms the box bodies 1 and 2. Such a bottom plate can be superimposed from the inside on the box bottom formed by the four bottom flaps 41 and 42 when the box bodies 1 and 2 are changed from the folded state to a three-dimensional shape. By providing such a bottom plate, the puncture resistance in the bottom direction can be increased. The bottom plate can be made of cardboard or wood.
[0062] Similarly, the medical waste container can be configured to include a lid plate body that is separate from the blank 2b that forms the lid 2. The lid plate body has a size slightly smaller than the lid top surface 50, and in the assembled lid 2, it is superimposed on the lid top surface 50 from the inside. At that time, for example, as described above, the pair of second lid side wall flaps 81 are folded inward to overlap with the lid side wall 61, and the two locking pieces 71 are engaged on only one side of the pair of second sides 52. Then, the second lid side wall flap 82 is folded inward to overlap with the lid side wall 62. And on the side of the other second lid side wall flap 82 that has not been folded yet, the lid plate body is inserted along the inner surface of the lid top surface 50 between the two locking pieces 71 that have not been engaged yet. As a result, the lid plate body is superimposed on the lid top surface 50, and the portions along its three sides are sandwiched between the free end edges of the pair of folded second lid side wall flaps 81 and one second lid side wall flap 82 and the lid top surface 50. Then, the remaining two locking pieces 71 are engaged, and the second lid side wall flap 82 is folded inward from above to overlap with the lid side wall 62. By doing so, the lid plate body is pressed toward the lid top surface 50 by the four second lid side wall flaps 81, 82, and the state where the lid plate body is superimposed on the lid top surface 50 is maintained. By providing such a lid plate body, the puncture resistance in the direction of the lid top surface 50 can be increased. The lid plate body can be made of cardboard or wood.
Explanation of Signs
[0063] 1 Box body 2 Box body 3 Lid 11, 12 Side wall 21, 22, 21b, 22b Top wall 31, 32 Second side wall flap 41, 42 Bottom flap 50 Lid top surface 61, 62 Lid side wall 81, 82 Second lid side wall flap 91, 92 Plate body
Claims
1. Comprising a box body made of cardboard, The box body is, Four side walls forming a square tube, Four second side wall flaps extending from the upper edge of each of the side walls or extending from each of the four top walls provided in a strip along the upper edge of each of the side walls, Four bottom flaps extending from the lower edge of each of the side walls to form a box bottom, and is provided with, Each of the second side wall flaps overlaps with one of the side walls over the entire height to form a double wall A medical waste container characterized by this.
2. Each of the second side wall flaps extends from one of the top walls, A plate body is sandwiched between the overlapping second side wall flaps and the side walls The medical waste container according to claim 1, characterized by this.
3. Further comprising a lid made of cardboard, The lid is, A rectangular lid top surface, Four lid side walls extending from each of the four sides of the lid top surface, Four second lid side wall flaps extending from each of the four lid side walls, and is provided with, Each of the second lid side wall flaps overlaps with one of the lid side walls over the entire height to form a double wall The medical waste container according to claim 1 or claim 2, characterized by this.