Container used in centrifuge and method for treating target material using said container

Abstract

To provide: a container for enhancing the processing capacity of a centrifuge; and a method for treating a treating target material using said container.SOLUTION: A container 100 is held on a rotation body of a centrifuge, the centrifuge comprising a revolution body revolvable around its revolution axis, the rotation body held on the revolution body and rotatable around its rotation axis, and a drive unit for applying, to at least one of the revolution body and the rotation body, a revolution / rotation force. The container comprises: a bottom wall portion 110 and a side wall portion 120; and a raised portion 130, which rises from the bottom wall portion 110 while contacting the side wall portion 120. The raised portion 130 comprises: an upstream side surface 132 facing an upstream side of rotation of the rotation body; and a downstream side surface 134 facing a downstream side of the rotation of the rotation body. The upstream side surface 132 and the downstream side surface 134 each have an inclined surface that is inclined relative to the side wall portion 120. The inclined surface of the upstream side surface 132 has a larger inclination angle than the inclined surface that the downstream side surface 134 has, relative to the side wall portion 120.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a container used in a centrifuge and a method for processing a material to be processed using the container. [Background technology]

[0002] There is known a centrifuge that processes a material stored in a container by rotating the container while revolving the container on its axis. This centrifuge is used for various purposes, for example, as a mixing / defoaming device that simultaneously mixes and defoams the material (Patent Document 1). This centrifuge is also used as a ball mill that pulverizes the material (Patent Document 2). Furthermore, this centrifuge is also used as an emulsifying device that emulsifies the material (Patent Document 3). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4084493 [Patent Document 2] Japanese Patent Application Laid-Open No. 2002-143706 [Patent Document 3] Japanese Patent Application Laid-Open No. 2010-194470 Summary of the Invention [Problem to be solved by the invention]

[0004] However, there is a demand for further improvements in the processing capacity of the above-mentioned centrifuges. For example, when the material to be processed contains powdery components, clumps may form, resulting in insufficient processing or a long processing time.

[0005] The present invention has been made in view of the above circumstances, and an object of the present invention is to provide a container for improving the processing capacity of a centrifuge, and a method for processing a material using the container. [Means for solving the problem]

[0006] The present invention, which aims to solve the above problems, comprises the following invention-specific matters and technical features.

[0007] That is, an invention according to one aspect is a container held by the rotating body of a centrifuge, the container comprising: an orbital body rotatable about an axis of revolution; a rotating body held by the orbital body and rotatable about an axis of rotation; and a drive unit that applies a rotational force to at least one of the orbital body and the rotating body, the container comprising: a bottom wall portion; a side wall portion; and a raised portion that contacts the side wall portion and raises from the bottom wall portion, the raised portion having an upstream side that faces the upstream side of the rotation of the rotating body, and a downstream side that faces the downstream side of the rotation of the rotating body, the upstream side and the downstream side each having an inclined surface that is inclined relative to the side wall portion, and the inclined surface of the upstream side having a larger inclination angle relative to the side wall portion than the inclined surface of the downstream side.

[0008] At least one of the inclined surfaces of the upstream side surface and the downstream side surface may be formed as a concave surface recessed toward the side wall portion.

[0009] Furthermore, the inclined surfaces of the upstream side and the downstream side may be surfaces that follow an imaginary circle, and the inclined surface of the upstream side may be a surface that follows an imaginary circle having a smaller radius than the inclined surface of the downstream side.

[0010] Furthermore, an invention according to one aspect is a container held by the rotating body of a centrifuge, the container comprising: a revolving body rotatable about its axis of revolution; a rotating body held by the revolving body and rotatable about its axis of rotation; and a drive unit that applies a rotational force to at least one of the revolving body and the rotating body, the container comprising: a bottom wall portion, a side wall portion, and a raised portion that contacts the side wall portion and rises from the bottom wall portion, the raised portion having an upstream side that faces upstream of the rotation of the rotating body, and a downstream side that faces downstream of the rotation of the rotating body, the upstream side and the downstream side each having an inclined surface that is inclined with respect to the side wall portion, the inclined surfaces of the upstream side and the downstream side being surfaces that follow an imaginary circle, and the inclined surface of the upstream side being a surface that follows an imaginary circle having a smaller radius than the inclined surface of the downstream side.

[0011] Furthermore, according to one aspect, the invention comprises any one of the above-mentioned containers, a revolving body rotatable around the revolution axis, a rotating body held by the revolving body and rotatable around the rotation axis, and a drive unit that imparts a rotational force to at least one of the revolving body and the rotating body, wherein the rotating body is a centrifuge that holds the container.

[0012] Furthermore, an invention according to one aspect is a method for processing a material to be processed, comprising the steps of storing the material to be processed in any of the containers described above, and processing the material to be processed by revolving and / or rotating the container containing the material to be processed. [Effects of the Invention]

[0013] According to the present invention, it is possible to provide a container for improving the processing capacity of a centrifuge, and a method for processing a material to be processed using the container. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a cross-sectional view showing a schematic configuration of a centrifuge according to an embodiment of the present invention. [Figure 2] FIG. 1 is a plan view of a container according to an embodiment of the present invention. [Figure 3]4 is an end view of a container according to an embodiment of the present invention taken along the line AA in FIG. 3. FIG. [Figure 4] 1 is a flowchart of a processing method according to an embodiment of the present invention. [Figure 5] FIG. 1 is a front view of a container according to an embodiment of the present invention. [Figure 6] FIG. 2 is a rear view of a container according to an embodiment of the present invention. [Figure 7] FIG. 2 is a right side view of a container according to an embodiment of the present invention. [Figure 8] FIG. 2 is a left side view of a container according to an embodiment of the present invention. [Figure 9] FIG. 1 is a plan view of a container according to an embodiment of the present invention. [Figure 10] FIG. 2 is a bottom view of a container according to an embodiment of the present invention. [Figure 11] 10 is a BB end view of FIG. 9 of a container according to an embodiment of the present invention. [Figure 12] 1 is a perspective view of a container according to an embodiment of the present invention. [Figure 13] FIG. 1 is a front view of a container according to an embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 14] FIG. 2 is a rear view of a container according to one embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 15] FIG. 2 is a right side view of a container according to an embodiment of the present invention (the portion indicated by a solid line is a raised portion). [Figure 16] FIG. 1 is a left side view of a container according to an embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 17] FIG. 1 is a plan view of a container according to one embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 18] FIG. 2 is a bottom view of a container according to one embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 19]18 is a cross-sectional view of a container according to one embodiment of the present invention taken along the CC line in FIG. 17 (the part indicated by the solid line is one of the raised portions. The dashed line indicates only the boundary between the raised portion and other portions). [Figure 20] FIG. 1 is a perspective view of a container according to one embodiment of the present invention (the part indicated by a solid line is one of the raised portions). [Figure 21] FIG. 1 is a plan view of a container according to an embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings. However, the embodiments described below are merely examples, and are not intended to exclude various modifications or applications of techniques not explicitly stated below. The present invention can be implemented in various modifications (for example, by combining the various embodiments) within the scope of the spirit of the present invention.

[0016] In the present invention, each numerical value is evaluated substantively. For example, when a first numerical value and a second numerical value are equal, the present invention treats the two values ​​as equal even if there is a difference between them, as long as the effect is equivalent to that achieved when the two values ​​are mathematically strictly equal. In addition, in the following description of the drawings, identical or similar parts are denoted by identical or similar symbols. The drawings are schematic and do not necessarily correspond to actual dimensions, ratios, etc. Parts in the drawings may have different dimensional relationships or ratios.

[0017] 1 is a cross-sectional view showing the schematic configuration of a centrifuge according to one embodiment of the present invention. As shown in the figure, the centrifuge 1 includes a revolving body 10, a rotating body 20, a support substrate 30, a drive unit 40, and a control unit 50. In addition, the centrifuge 1 includes a balance weight, a housing, etc., which are not shown.

[0018] The revolving body 10 is configured to include a shaft portion 11, a first arm 12, and a second arm 13. The shaft portion 11 of the revolving body 10 is rotatably supported by a support substrate 30, and the revolving body 10 is rotated by a drive portion 40 around a revolution axis L1, which is an imaginary straight line.

[0019] The first arm 12 extends in a first direction perpendicular to the revolution axis L1, is configured to bend midway, and is fitted with the rotating body 20. The second arm 13 extends in a second direction opposite to the first direction, and is fitted with the balance weight described above to balance the rotation of the revolving body 10 and improve quietness, etc.

[0020] The rotating body 20 is configured to include a shaft portion 21 and a holder portion 22. The shaft portion 21 of the rotating body 20 is rotatably held at a position closer to the tip end than the bent portion of the first arm 12 of the revolving body 10, and the rotating body 20 is rotated around a rotation axis L2, which is an imaginary straight line, by a drive unit 40. Based on the above-mentioned arrangement, the rotation axis L2 has a predetermined inclination angle with respect to the revolution axis L1.

[0021] The holder portion 22 is configured in a cylindrical shape with a bottom, and is open at the end face opposite to the shaft portion 21. The holder portion 22 receives and holds the container 100 shown in Fig. 2 and the like from the bottom through the open portion.

[0022] The drive unit 40 includes, for example, a motor, and gears, pulleys, belts, and the like that transmit the rotational force generated by the motor to the shafts 11 and 21. The control unit 50 controls the operation of the drive unit 40 and the like, thereby controlling the overall operation of the centrifuge 1.

[0023] The centrifuge 1 configured as described above rotates the revolving body 10 about the revolution axis L1 while rotating the rotating body 20 about the rotation axis L2, with the container 100 containing the material M to be processed held in the holder portion 22 of the rotating body 20. As a result, the container 100 revolves about the revolution axis L1 while rotating about the rotation axis L2, so that the material M to be processed contained in the container 100 is processed.

[0024] There are no particular limitations on the composition or use of the material to be processed M. The material to be processed M may be a material containing only fluid components, a material containing granular components (which may be powder components; the same applies below) in addition to fluid components, or a material containing only solid components.

[0025] Fig. 2 is a plan view showing a container according to one embodiment of the present invention, and Fig. 3 is an end view showing a container according to one embodiment of the present invention, taken along the line AA in Fig. 2. As shown in these figures, the container 100 is configured to include a bottom wall portion 110, a side wall portion 120, and a raised portion 130.

[0026] The container 100 has an opening at the end of the side wall 120 opposite the bottom wall 110, and stores the material to be processed M. The container 100 may be formed so that a lid (not shown) can be attached to the opening. The container 100 is mounted on the holder 22 shown in FIG. 1 so that the center line CL, which is an imaginary straight line passing through the center of the container, overlaps with the rotation axis L2 (in this case, the container 100 may be mounted on the holder 22 via an adapter (not shown). However, it is also possible to mount the container 100 on the holder 22 so that the center line CL does not overlap with the rotation axis L2.

[0027] The bottom wall 110 extends in a direction perpendicular to the center line CL at the bottom of the container 100. The bottom wall 110 may be a straight flat surface, a curved surface that is slightly convex upward, a curved surface that is slightly convex downward, or the like.

[0028] The side wall portion 120 extends upward from the outer peripheral edge of the bottom wall portion 110. The side wall portion 120 may extend straight upward or may be slightly inclined with respect to the center line CL.

[0029] The corners 122 formed between the bottom wall 110 and the side wall 120 may be lightly chamfered, C-chamfered, or R-chamfered. The bottom wall 110 may have an engaging portion (not shown) on its outer circumferential surface for engaging with the holder 22 of the rotating body 20.

[0030] The raised portion 130 protrudes from the bottom wall portion 110 while contacting the side wall portion 120. One or more raised portions 130 may be provided, and the number is not limited, but for example, one raised portion 130 is provided as shown in Figures 2 and 3.

[0031] The raised portion 130 is not present in the central region of the bottom wall portion 110 so as not to excessively impede the flow of the material to be processed M. The raised portion 130 may be formed so as to extend along the side wall portion 120 up to the vicinity of the opening of the container 100, or may be formed only near the bottom wall portion 110 as shown in Figures 2 and 3.

[0032] The raised portion 130 has an upstream side surface 132 provided on the upstream side of the rotation (spin) of the rotating body 20 (Figures 2 and 3 assume that the rotation (spin) direction of the rotating body 20 is counterclockwise), a downstream side surface 134 provided on the downstream side of the rotation (spin) of the rotating body 20, and a top surface 136 facing the opening side of the container 100.

[0033] The upstream side surface 132 and the downstream side surface 134 have inclined surfaces that are inclined with respect to the side wall portion 120. As shown in the figure, these inclined surfaces are provided over the entire area of ​​the upstream side surface 132 and the downstream side surface 134, but it is also possible that these inclined surfaces are provided over only a portion of the area.

[0034] The inclination angle α of the inclined surface of the upstream side surface 132 relative to the side wall portion 120 is larger than the inclination angle β of the inclined surface of the downstream side surface 134 relative to the side wall portion 120. As shown in FIG. 2 , the inclination angle α refers to the angle between an imaginary line connecting the position of the inclined surface of the upstream side surface 132 closest to the side wall portion 120 and the position of the inclined surface of the upstream side surface 132 closest to the center line CL, and a tangent to a position on the side wall portion 120 that intersects with the imaginary line (including an extension of the imaginary line). The inclination angle β refers to the angle between an imaginary line connecting the position of the inclined surface of the downstream side surface 134 closest to the side wall portion 120 and the position of the inclined surface of the downstream side surface 134 closest to the center line CL, and a tangent to a position on the side wall portion 120 that intersects with the imaginary line (including an extension of the imaginary line).

[0035] The inclined surfaces of the upstream side surface 132 and the downstream side surface 134 are formed as concave surfaces recessed toward the side wall portion 120. In particular, it is preferable that the inclined surfaces of the upstream side surface 132 and the downstream side surface 134 are formed as surfaces along imaginary circles Cα and Cβ, respectively, as shown in Fig. 2. Note that the imaginary circle Cα has a smaller radius than the imaginary circle Cβ.

[0036] In addition, the corners formed between the upstream side surface 132, the downstream side surface 134, and the top surface 136, as well as the corners formed between any of the upstream side surface 132, the downstream side surface 134, and the top surface 136 and the bottom wall portion 110 or the side wall portion 120, may be chamfered, C-chamfered, or R-chamfered.

[0037] Furthermore, the specific size of the raised portion 130 may be, for example, as follows, but is not limited to these. First, as shown in FIG. 2 or 3, the raised portion 130 has a height H, a length L, and a width W. The height H is the dimension between the highest part of the raised portion 130 and the bottom wall portion 110. The length L is the dimension between the part of the raised portion 130 that protrudes most from the side wall portion 120 and the side wall portion 120. The width W is the dimension between the two most circumferentially protruding parts of the raised portion 130. Since the size of the container 100 can be changed as needed, if the height of the side wall portion 120 inside the container 100 is 100%, the lower limit of the height H of the raised portion 130 may be 5%, and more preferably 10%. The upper limit of the height H of the raised portion 130 may be 100%. When the radius of the bottom wall 110 inside the container 100 is taken as 100%, the lower limit of the length L of the raised portion 130 may be 10%, more preferably 20%. The upper limit of the length L of the raised portion 130 may be 80%. When the diameter of the bottom wall 110 inside the container 100 is taken as 100%, the lower limit of the width W of the raised portion 130 may be 10%, more preferably 20%. The upper limit of the width W of the raised portion 130 may be 80%.

[0038] 4 is a flowchart illustrating a method for processing a material according to one embodiment of the present invention. The processing method is carried out using a container 100.

[0039] First, the user of the container 100 places the material to be processed M in the container 100 (S401). Next, the user causes the holder portion 22 of the rotor 20 of the centrifuge 1 to hold the container 100 (S402). As a result, the container 100 is held by the holder portion 22 so that its center line CL coincides with or is parallel to the rotation axis L2.

[0040] Next, the user operates the centrifuge 1 (S403). As the centrifuge 1 operates, the container 100 rotates (revolves) around the revolution axis L1 and also rotates around the rotation axis L2. As a result, the material M to be processed is processed in the container 100.

[0041] After processing the material M to be processed, the user stops the centrifuge 1 (S404). Thereafter, the user can remove the container 100 from the centrifuge 1, and use the material M to be processed that has been processed in the container 100.

[0042] Here, when the container 100 rotates (revolves) around the revolution axis L1 while rotating (spins) around the rotation axis L2, the upstream side 132 of the raised portion 130 is positioned upstream of the rotation around the rotation axis L2, and the downstream side 134 of the raised portion 130 is positioned downstream of the rotation around the rotation axis L2. The inclination angle α of the inclined surface of the upstream side 132 with respect to the side wall portion 120 is larger than the inclination angle β of the inclined surface of the downstream side 134 with respect to the side wall portion 120. This applies a strong force to the material M to be processed that hits the inclined surface of the upstream side 132, and allows the subsequent material M to flow smoothly along the inclined surface of the downstream side 134. This allows the container 100 to efficiently process the material M to be processed, such as by stirring. In particular, in the container 100, when the material M to be processed is a material that contains granular components in addition to fluid components, the inclined surface of the upstream side 132 can break up clumps of the granular components, while the inclined surface of the downstream side 134 can allow them to flow smoothly, and processing of the material M to be processed, such as stirring, can be completed in a short time.

[0043] Furthermore, the inclined surfaces of the upstream side surface 132 and the downstream side surface 134 are each formed as a concave surface recessed toward the sidewall portion 120, and in particular, are formed as surfaces along the imaginary circles Cα and Cβ. As a result, the inclined surface of the upstream side surface 132 applies a strong force to the material M to be processed that hits the inclined surface, and also promotes the smooth flow of the material M to be processed, and further allows the material M to flow even more smoothly on the downstream side surface 134. As a result, in the container 100, processing of the material M to be processed, such as stirring, can be performed more efficiently.

[0044] Table 1 shows experimental results when a predetermined test material containing a granular component in addition to a fluid component was used as the material M to be processed. Configuration 1 refers to the case where a container according to one embodiment of the present invention shown in Figures 5 to 12 was used. Comparative Example 1 refers to the case where a container in which the raised portion was removed from the container of Configuration 1 was used. Comparative Example 2 refers to the case where a container in which the raised portion of the container of Configuration 1 was modified so that the inclination angle α of the inclined surface of the upstream side relative to the sidewall portion and the inclination angle β of the inclined surface of the downstream side relative to the sidewall portion were equal (the radii of the imaginary circles Cα and Cβ were equal). In Table 1, "processing completed," "partially incomplete," and "processing incomplete" refer to a state where mixing is complete, a state where some lumps remain, and a state where many lumps remain, respectively. As shown in Table 1, when Configuration 1 was used, processing of the material M to be processed could be completed in a shorter time than in Comparative Examples 1 and 2.

[0045] [Table 1]

[0046] 5 to 12 show six-sided views, an end view, and a perspective view of a container according to one embodiment of the present invention, and Figs. 13 to 20 show six-sided views, an end view, and a perspective view of a container according to one embodiment of the present invention, in which only one protrusion is shown by a solid line.

[0047] The above-described embodiments are merely examples for explaining the present invention, and are not intended to limit the present invention to these embodiments. The present invention can be embodied in various forms without departing from the spirit of the present invention.

[0048] For example, in the methods disclosed herein, steps, operations, or functions may be performed in parallel or in a different order unless the results are inconsistent. The steps, operations, and functions described are provided merely as examples, and some of the steps, operations, and functions may be omitted or combined into one, or other steps, operations, or functions may be added, without departing from the spirit of the invention.

[0049] Moreover, the raised portion 130 may be configured so that the upstream side surface 132 and the downstream side surface 134 have flat inclined surfaces. Fig. 21 is a plan view of the container 100 in this case (note that Fig. 21 assumes that the rotation direction (spin) of the rotor 20 is counterclockwise).

[0050] The upstream side surface 132 and the downstream side surface 134 have a flat inclined surface that is inclined with respect to the side wall portion 120. This inclined surface is provided over the entire area of ​​the upstream side surface 132 and the downstream side surface 134, but it is also possible that this inclined surface is provided only on a portion of the upstream side surface 132. The inclination angle α of the inclined surface of the upstream side surface 132 with respect to the side wall portion 120 is larger than the inclination angle β of the inclined surface of the downstream side surface 134 with respect to the side wall portion 120. In the present application, when the upstream side surface 132 has a flat inclined surface, even if the inclination angle α of the inclined surface is 90 degrees, it is treated as being inclined with respect to the side wall portion 120.

[0051] Even when the inclined surfaces of the upstream side surface 132 and the downstream side surface 134 are flat, the inclination angle α of the inclined surface of the upstream side surface 132 relative to the side wall portion 120 of the container 100 is larger than the inclination angle β of the inclined surface of the downstream side surface 134 relative to the side wall portion 120. This applies a strong force to the material M that hits the inclined surface of the upstream side surface 132, and causes the material M to flow smoothly along the inclined surface of the downstream side surface 134. This allows the container 100 to efficiently process the material M, such as by stirring. In particular, when the material M contains granular components in addition to fluid components, the container 100 can break up clumps of the granular components using the inclined surface of the upstream side surface 132, while allowing the material M to flow smoothly along the inclined surface of the downstream side surface 134, thereby completing the process of the material M, such as by stirring, in a short time. It is also possible that one of the inclined surfaces of the upstream side surface 132 and the downstream side surface 134 is formed as a concave surface (a surface along an imaginary circle) recessed toward the side wall portion 120, and the other is formed as a flat surface.

[0052] Furthermore, the raised portion 130 may be configured such that the surfaces of the inclined surfaces of the upstream side surface 132 and the downstream side surface 134 are surface-treated. For example, minute irregularities may be formed on the inclined surfaces of the upstream side surface 132 and the downstream side surface 134, or a water-repellent coating or a hydrophilic coating may be applied. In this case, different surface treatments may be applied to the inclined surface of the upstream side surface 132 and the inclined surface of the downstream side surface 134. That is, the inclined surface of the upstream side surface 132 may be surface-treated to apply a stronger force to the material M to be treated, and the inclined surface of the downstream side surface 134 may be surface-treated to promote a smoother flow of the material M thereafter. In this case, the raised portion 130 may be such that the inclination angle α of the inclined surface of the upstream side surface 132 relative to the side wall portion 120 is equal to the inclination angle β of the inclined surface of the downstream side surface 134 relative to the side wall portion 120 (the radius of the imaginary circle Cα is equal to the radius of the imaginary circle Cβ).

[0053] Furthermore, although various embodiments are disclosed in this specification, specific features (technical matters) in one embodiment can be added to or substituted for specific features in other embodiments, with appropriate modifications, and such forms are also included in the spirit of the present invention. [Industrial Applicability]

[0054] The present invention can be widely used in the field of rotation-revolution type centrifuges. [Explanation of symbols]

[0055] 1: centrifuge, 10: revolving body, 11: shaft, 12: first arm, 13: second arm, 20: rotating body, 21: shaft, 22: holder, 30: support substrate, 40: drive unit, 50: control unit, 100: container, 110: bottom wall, 120: side wall, 130: raised portion, 132: upstream side, 134: downstream side, 136: top surface, CL: center line, Cα: virtual circle, Cβ: virtual circle, H: height, L1: revolution axis, L2: rotation axis, M: material to be processed, R: angle, α: tilt angle, β: tilt angle

Claims

1. A container held by the rotating body of a centrifuge, the container comprising: a revolving body rotatable around a revolution axis; a rotating body held by the revolving body and rotatable around a rotation axis; and a drive unit that applies a rotational force to at least one of the revolving body and the rotating body, a bottom wall portion and a side wall portion; a raised portion that is in contact with the side wall portion and protrudes from the bottom wall portion; Equipped with The raised portion is an upstream side surface facing the upstream side of the rotation of the rotor; a downstream side surface facing the downstream side of rotation of the rotor; Equipped with the upstream side surface and the downstream side surface each have an inclined surface that is inclined with respect to the side wall portion, A container, wherein the inclined surface of the upstream side surface has a larger inclination angle with respect to the side wall portion than the inclined surface of the downstream side surface.

2. The container according to claim 1 , wherein at least one of the inclined surfaces of the upstream side surface and the downstream side surface is formed as a concave surface recessed toward the side wall portion.

3. 3. The container according to claim 2, wherein the inclined surfaces of the upstream side and the downstream side are surfaces that follow an imaginary circle, and the inclined surface of the upstream side is a surface that follows an imaginary circle having a smaller radius than the inclined surface of the downstream side.

4. A container held by the rotating body of a centrifuge, the container comprising: a revolving body rotatable around a revolution axis; a rotating body held by the revolving body and rotatable around a rotation axis; and a drive unit that applies a rotational force to at least one of the revolving body and the rotating body, a bottom wall portion and a side wall portion; a raised portion that is in contact with the side wall portion and protrudes from the bottom wall portion; Equipped with The raised portion is an upstream side surface facing the upstream side of the rotation of the rotor; a downstream side surface facing the downstream side of rotation of the rotor; Equipped with the upstream side surface and the downstream side surface each have an inclined surface that is inclined with respect to the side wall portion, A container wherein the inclined surfaces of the upstream side and the downstream side are surfaces that follow an imaginary circle, and the inclined surface of the upstream side is a surface that follows an imaginary circle having a smaller radius than the inclined surface of the downstream side.

5. A container according to any one of claims 1 to 4; a revolving body rotatable around the revolution axis; a rotating body that is held by the revolving body and is rotatable around the rotation axis; a drive unit that applies a rotational force to at least one of the revolving body and the rotating body; Equipped with The rotating body is a centrifuge that holds the container.

6. A step of storing a material to be processed in the container according to any one of claims 1 to 4; a step of processing the material to be processed by revolving and / or rotating the container containing the material to be processed; A method for treating a material to be treated, comprising:

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