Method for manufacturing article storage container and article storage container manufactured thereby

Abstract

A method for manufacturing an article storage container according to the present invention is a method for manufacturing an article storage container including a first unit for fixing an article, a second unit for covering the first unit, and a connection unit for making the second unit pivot from the first unit. The method comprises: a molding step of molding the first unit, the second unit, and the connection unit; a surface polishing step of polishing the surfaces of the molded first unit, second unit, and connection unit; and an assembly step of assembling the components of the first unit, the second unit, and the connection unit, wherein wet polishing or both the wet polishing and dry polishing are used in the step of polishing the surfaces.

Description

Method for manufacturing a storage container for goods and a storage container for goods manufactured according to the same

[0001] The present invention relates to a method for manufacturing an article storage container and an article storage container manufactured according to the same, and more specifically, to a method for manufacturing an article storage container with improved aesthetics by significantly reducing surface roughness and an article storage container manufactured according to the same.

[0002] Generally, grinding is a process of physically removing material primarily to reduce surface roughness or to obtain a desired shape and size.

[0003] This process can be applied to various materials such as metals, ceramics, glass, semiconductors, and even plastics, and plays an important role in industries requiring precision processing.

[0004] However, conventional dry polishing methods applied to storage boxes have a limitation in that it is difficult to produce a mirror-like surface with very high gloss (e.g., a surface gloss grade of N3 or lower).

[0005] Therefore, a method to resolve these problems is required.

[0006] The present invention is an invention devised to solve the problems of the aforementioned prior art, and the present invention has the objective of providing a method for manufacturing an article storage container capable of reducing surface roughness to a surface gloss level of N3 grade or lower, and an article storage container manufactured according to the same.

[0007] The problems of the present invention are not limited to those mentioned above, and other unmentioned problems will be clearly understood by those skilled in the art from the description below.

[0008] A method for manufacturing an article storage container according to an embodiment of the present invention for achieving the above-described purpose is a method for manufacturing an article storage container comprising a first unit for fixing an article, a second unit for covering the first unit, and a connecting unit for rotating the second unit from the first unit, wherein the method comprises: a molding step of molding the first unit, the second unit, and the connecting unit; a surface polishing step of polishing the surface of the molded first unit, the second unit, and the connecting unit; and an assembly step of assembling components of the first unit, the second unit, and the connecting unit, wherein the step of polishing the surface may use wet polishing or both wet polishing and dry polishing.

[0009] The above wet polishing can be performed using a mixed material of silicon carbide (SiC) and an aqueous nitric acid solution as a wet abrasive.

[0010] The above wet abrasive may further include square or rectangular wool.

[0011] The above wet abrasive may be formed by silicon carbide (SiC) with a size of 300 µm to 50 µm, an aqueous nitric acid solution with a concentration of 4.5%, and wool with a size of 2 mm to 10 mm in a weight ratio of 2:6:2.

[0012] The above wet abrasive can be changed from silicon carbide (SiC) of 300 µm to 50 µm in size to silicon carbide (SiC) of 0.5 µm in size.

[0013] The above wet abrasive can be changed from silicon carbide (SiC) with a size of 300 µm to 50 µm to aluminum oxide (Al2O3) with a size of 0.05 µm.

[0014] A method for manufacturing an article storage container according to one embodiment of the present invention for achieving the above-described purpose may include an article storage container manufactured according to the article storage container manufacturing method described above, comprising: a first unit for fixing an article in an internal space; a second unit covering the first unit; and a connecting unit that causes the second unit to rotate on the first unit.

[0015] The inner surface of the first unit, the second unit, and the connecting unit may have a surface roughness of 0.1 μm or less.

[0016] The first unit may include a body portion forming an internal space; and a seating portion fixed inside the body portion to form an internal surface and secure an article.

[0017] The second unit may include a cover portion covering the body portion; and a protective portion connected to the inside of the cover portion to form an inner surface and enclose an article.

[0018] The above connecting unit may include: a first guide portion that is open in one direction and forms a path that guides the second unit to open or close as it rotates from the first unit; a second guide portion coupled to one side of the open portion of the first guide portion and arranged so that one side of the second unit contacts when the second unit rotates in the opening or closing direction to guide the rotation corresponding to the path; and a cover portion that is arranged to face an article to form an inner surface and is fixed to the first guide portion.

[0019] The above-mentioned first unit may further include a support unit that supports the lower part so that it does not fall over.

[0020] The outer surface of the first unit, the second unit, and the support unit may have a surface roughness of 0.1 μm or less.

[0021] The method for manufacturing an article storage container according to the present invention for solving the above problem, and the article storage container manufactured according to the same, have the effect of being able to reduce surface roughness to a surface gloss level of N3 grade or lower.

[0022] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by those skilled in the art from the description in the claims.

[0023] The summary described above, as well as the detailed description of the preferred embodiments of the present application described below, will be better understood when read in conjunction with the accompanying drawings.

[0024] Preferred embodiments are illustrated in the drawings for the purpose of illustrating the present invention.

[0025] However, it should be understood that the present application is not limited to the exact arrangement and means depicted.

[0026] FIG. 1 is a method for manufacturing an article storage container according to one embodiment of the present invention;

[0027] FIG. 2 is a drawing for explaining a surface polishing step in a method for manufacturing an article storage container according to an embodiment of the present invention;

[0028] FIG. 3 is a drawing showing the state before surface polishing in a method for manufacturing an article storage container according to one embodiment of the present invention;

[0029] FIG. 4 is a drawing showing the state after wet polishing in a method for manufacturing an article storage container according to one embodiment of the present invention;

[0030] FIGS. 5 and 6 are drawings showing the state after dry polishing in a method for manufacturing an article storage container according to an embodiment of the present invention;

[0031] FIG. 7 is a drawing showing the appearance of an article storage container according to one embodiment of the present invention;

[0032] FIGS. 8 and 9 are drawings for explaining the configuration of an article storage container according to an embodiment of the present invention;

[0033] FIG. 10 is a drawing showing the inner surface of an article storage container according to one embodiment of the present invention;

[0034] FIG. 11 is a drawing for explaining a support unit of an article storage container according to one embodiment of the present invention.

[0035] Below, with reference to the attached drawings, embodiments of the present invention are described in detail so that those skilled in the art can easily implement the invention. However, since the description of the present invention is merely an example for structural or functional explanation, the scope of the rights of the present invention should not be interpreted as being limited by the embodiments described in the text. That is, since the embodiments are subject to various modifications and may take various forms, the scope of the rights of the present invention should be understood to include equivalents capable of realizing the technical concept. Furthermore, the objectives or effects presented in the present invention do not imply that a specific embodiment must include all of them or only such effects; therefore, the scope of the rights of the present invention should not be understood as being limited by them.

[0036] The meaning of the terms described in this invention should be understood as follows.

[0037] Terms such as "first" and "second" are intended to distinguish one component from another, and the scope of rights shall not be limited by these terms. For example, the first component may be named the second component, and similarly, the second component may be named the first component. When a component is referred to as being "connected" to another component, it should be understood that it may be directly connected to that other component, or that there may be other components in between. Conversely, when a component is referred to as being "directly connected" to another component, it should be understood that there are no other components in between. Meanwhile, other expressions describing the relationship between components, such as "between" and "exactly between," or "adjacent to" and "directly adjacent to," shall be interpreted in the same manner.

[0038] A singular expression should be understood to include a plural expression unless the context clearly indicates otherwise, and terms such as "include" or "have" are intended to specify the existence of the set-up features, numbers, steps, actions, components, parts, or combinations thereof, and should be understood not to preclude the existence or addition of one or more other features, numbers, steps, actions, components, parts, or combinations thereof.

[0039] Unless otherwise defined, all terms used herein have the same meaning as generally understood by those skilled in the art to which this invention pertains. Terms defined in commonly used dictionaries should be interpreted as having meanings consistent with the context of the relevant technology and should not be interpreted as having an ideal or overly formal meaning unless explicitly defined in this invention.

[0040] A preferred embodiment of the present invention, in which the objective of the present invention can be specifically realized, will be described below with reference to the attached drawings.

[0041] In describing this embodiment, the same names and symbols are used for identical components, and additional explanations thereof are omitted.

[0042] FIG. 1 is a method for manufacturing an article storage container according to an embodiment of the present invention, FIG. 2 is a drawing for explaining a surface polishing step in a method for manufacturing an article storage container according to an embodiment of the present invention, FIG. 3 is a drawing showing a state before surface polishing in a method for manufacturing an article storage container according to an embodiment of the present invention, FIG. 4 is a drawing showing a state after wet polishing in a method for manufacturing an article storage container according to an embodiment of the present invention, FIG. 5 and FIG. 6 are drawings showing a state after dry polishing in a method for manufacturing an article storage container according to an embodiment of the present invention, FIG. 7 is a drawing showing the appearance of an article storage container according to an embodiment of the present invention, FIG. 8 and FIG. 9 are drawings for explaining the configuration of an article storage container according to an embodiment of the present invention, FIG. 10 is a drawing showing the inner surface of an article storage container according to an embodiment of the present invention, and FIG. 11 is a drawing for explaining a support unit of an article storage container according to an embodiment of the present invention.

[0043] First, a method for manufacturing an article storage container (10) according to one embodiment of the present invention may include, broadly, a molding step (S100), a surface polishing step (S200), and an assembly step (S300).

[0044] A method for manufacturing an article storage container (10) comprising a first unit (100) for fixing an article, a second unit (200) covering the first unit (100) described above, and a connecting unit that allows the second unit (200) to rotate from the first unit (100) described above, wherein the configuration of the first unit (100), the second unit (200), and the connecting unit will be described in more detail after the manufacturing method is described.

[0045] In the molding step (S100), the above-described first unit (100), the above-described second unit (200), and the above-described connecting unit can each be molded.

[0046] At this time, each molded product may be made of stainless steel, and the process may include cleaning the surface of the material thoroughly and removing oxide layers or contaminants.

[0047] In addition, stainless steel plates can be cut into desired shapes using methods such as laser cutting, waterjet cutting, and shearing.

[0048] After going through the process described above, sharp edges or irregular parts of the material can be polished.

[0049] Next, the desired shape can be created through the molding process.

[0050] Here, the shape of the article storage container (10) according to one embodiment of the present invention may vary, and it is obvious that the material is not limited to stainless steel as long as it facilitates the storage of articles.

[0051] However, for a more detailed explanation, the shape of the article storage container (10) according to one embodiment of the present invention may be provided in an elliptical egg shape that increases overall resistance to external forces.

[0052] In particular, when pressure is applied in the longitudinal direction, the egg shape can exhibit very high resistance.

[0053] If such a shape can be created, the shape can be made through at least one of the following forming processes: press forming, which uses a mold to press a stainless steel plate into a desired shape; extrusion forming, which uses a mold to extrude a stainless steel rod into a shape with various cross-sections; and bending forming, which uses a bending machine to bend a plate or rod into a specific angle.

[0054] In addition, by including a heat treatment process to remove internal stress generated during welding or forming, the mechanical properties of the product can be improved, and the product's lifespan can be extended by minimizing internal residual stress.

[0055] Next, in the surface polishing step (S200), at least a portion of the surface of each of the first unit (100), second unit (200), and connecting unit formed through the molding step (S100) can be polished.

[0056] For example, when the user has the second unit (200) open from the first unit (100), the inner surface of the first unit (100), the inner surface of the second unit (200), and the inner surface of the connecting unit visible to the user can also be formed as mirror-like surfaces with very high gloss (e.g., a gloss level of N3 grade or lower).

[0057] In addition, when the second unit (200) is closed in the first unit (100), the outer surface of the first unit (100) visible to the user, the outer surface of the second unit (200), and the outer surface of the support unit described later may be formed as a mirror-like surface with very high gloss (e.g., a surface gloss level of grade N3 or lower).

[0058] Specifically, the step of polishing the surface may use wet polishing or a combination of the wet polishing and dry polishing described above.

[0059] For a more detailed explanation, we will describe a hybrid polishing method in which wet polishing is performed followed by dry polishing, but it is acceptable to perform wet polishing alone, and the scope of rights is not limited by this.

[0060] First, regarding wet polishing, wet polishing is a polishing method that uses a liquid such as water or lubricant during the polishing process, which can be advantageous for reducing frictional heat, improving surface quality, and effectively removing dust and foreign substances.

[0061] In other words, wet polishing is advantageous for polishing metal surfaces such as stainless steel and aluminum to create a smooth and uniform surface. It minimizes surface defects and allows for even polishing, providing a high-quality finish and excellent gloss, thereby reducing material damage caused by excessive heat generation or impact.

[0062] Therefore, it may be suitable for work requiring a delicate finish, such as an article storage container (10) according to one embodiment of the present invention.

[0063] Specifically, the wet polishing described above can be performed using a mixture of silicon carbide (SiC) and an aqueous nitric acid solution as a wet abrasive.

[0064] Silicon carbide has excellent strength and wear resistance, making it effective for polishing various metals as well as non-metallic materials, thus allowing for versatile use as a material.

[0065] In addition, aqueous nitric acid solution is a strong oxidizing agent that can play a role in removing the oxide layer on the surface during the polishing process or activating the surface by inducing specific chemical reactions.

[0066] In particular, it can be used to clean the surface of metal materials and remove corrosive contaminants to make the surface uniform, and it can be applied to the surface of various metals such as stainless steel, aluminum, copper, and iron.

[0067] The polishing process using the aforementioned silicon carbide and aqueous nitric acid solution together can be carried out in the following order.

[0068] First, large defects, scratches, and irregularities on the surface can be removed using silicon carbide abrasive, and in this process, an aqueous nitric acid solution can be added to remove oxides or contaminants on the surface, thereby increasing the efficiency of the polishing process.

[0069] In addition, finer-grained silicon carbide abrasives can be used to remove fine defects on the surface and make it smoother.

[0070] The surface is finely polished and buffed by reducing the particle size of the abrasive and adjusting the concentration of the aqueous nitric acid solution; this process continuously removes the fine oxide layer from the surface, creating a very uniform and smooth surface.

[0071] However, the wet polishing in the present invention is performed by fixing at least one of the first unit (100), the second unit (200), and the connecting unit (300) to a central axis in a polishing container containing a mixture of silicon carbide and an aqueous nitric acid solution, and rotating it. In this rotating polishing process, there is a problem in that it is difficult to obtain the desired polishing quality due to the inertia of the silicon carbides trying to move away from at least one of the first unit (100), the second unit (200), and the connecting unit (300) fixed to a central axis by centrifugal force.

[0072] To solve this, the wet abrasive of the present invention may further include square or rectangular wool.

[0073] Therefore, since the fibers of the wool are intricately intertwined, the silicon carbides adhere to the wool, which can solve the problem of centrifugal force or inertia, and the pressure applied to the surface of the storage container (10) is evenly distributed and finely polished, so that fine scratches and defects on the surface can be removed and the surface can be finished smoothly and evenly.

[0074] Furthermore, when combined with wet polishing, the use of water and abrasives reduces frictional heat, and a more uniform surface treatment can be achieved.

[0075] In addition, wool has the ability to absorb and disperse frictional heat generated during the polishing process, which can prevent the polished surface from overheating, discoloring, or deformation, and can be safely used on heat-sensitive materials.

[0076] In other words, wool has the characteristic of absorbing moisture and silicon carbide well and distributing them evenly, so the lubricating effect can be maximized during the polishing process.

[0077] Furthermore, wool can be effective in keeping the surface clean by adsorbing residues or contaminants generated during polishing, and due to its soft and flexible properties, it can minimize damage even when excessive pressure is applied to the surface.

[0078] Specifically, the wet abrasive may be formed with silicon carbide (SiC) of a size of 300 µm to 50 µm, an aqueous nitric acid solution of 4.5% concentration, and wool of a size of 2 mm to 10 mm in a weight ratio of 2:6:2.

[0079] At this time, even if the silicon carbide (SiC) with a size of 300 µm to 50 µm is changed to silicon carbide (SiC) with a size of 0.5 µm, the wet abrasive will all fall within the scope of the present invention.

[0080] In addition, even if the silicon carbide (SiC) with a size of 300 µm to 50 µm is changed to aluminum oxide (Al2O3) with a size of 0.05 µm, this may also fall within the scope of the present invention.

[0081] Next, regarding dry polishing, dry polishing can be performed on a small scale or intermittently before and after the wet polishing process described above.

[0082] Unlike wet grinding illustrated in Fig. 4, dry grinding does not require drying the surface or treating wastewater after the operation, and since no liquid is used, there is less residue after the operation, making cleaning easier.

[0083] Dry grinding can be performed in multiple stages as shown in FIGS. 5 and 6 for precise surface finishing of hard wood or certain metals (aluminum, stainless steel, etc.).

[0084] As such, dry grinding can be a method of grinding in, for example, one to three stages, but it is not necessary to proceed up to three stages, and it is obvious that the scope of rights is not limited even if only one stage is performed or only two or three stages are performed.

[0085] By polishing as described above, the desired surface roughness can be reduced to 0.1 μm or less.

[0086] Finally, the components of the first unit (100), the second unit (200), and the connecting unit can be assembled through the assembly step (S300).

[0087] Specifically, the item storage container (10) manufactured through the item storage container (10) manufacturing method described above is as follows.

[0088] Specifically, a storage container (10) according to one embodiment of the present invention may largely include a first unit (100), a second unit (200), and a connecting unit (300).

[0089] The first unit (100) can secure an item in the internal space.

[0090] Specifically, the first unit (100) may include a body portion (110) that forms an internal space, and the body portion (110) may be formed in an elliptical hemispherical shape to form the entire item storage container (10) into an egg shape as described above.

[0091] And a seating portion (130) that is fixed inside the body portion (110) to form an inner surface and fixes an item may be included.

[0092] The method and shape of fixation may vary depending on the article, and it is obvious that the scope of the rights of the present invention is not limited by this.

[0093] However, for a more detailed explanation, to give an example, if the item is a gemstone (J) such as a ring, a protruding block may be formed in the seating portion (130) to hold the ring portion of the ring.

[0094] Additionally, the first unit (100) may further include a fixing part (120) connecting the body part (110) and the seating part (130) described above.

[0095] Next, let's look at the second unit (200) covering the first unit (100).

[0096] If the first unit (100) is located at the bottom, the second unit (200) is formed at the top so as to face the first unit (100), and the entire storage container (10) is closed by covering the first unit (100), and the storage container (10) can be opened by being spaced apart from the first unit (100).

[0097] The second unit (200) can also be provided in the same form as the first unit (100), in the shape of an elliptical hemisphere opposite to the first unit (100) to form the entire item storage container (10) into an egg shape.

[0098] The second unit (200) may include, for example, a cover portion (210) that covers the body portion (110), and a protective portion (220) that is connected inside the cover portion (210) to form an inner surface and surrounds an article.

[0099] In addition, a protrusion (230) may be formed at one end of the protective part (220) to form the opening or closing rotational direction of a curved or straight path.

[0100] The protrusion (230) can be slid by contacting the first guide part (310) described later and rotating.

[0101] A connecting unit (300) for connecting the first unit (100) and the second unit (200) described above can be fixed to the first unit (100) so that the second unit (200) can be rotated from the first unit (100) to open or close.

[0102] The connecting unit (300) may include a first guide part (310), a second guide part (311), and a cover part (320).

[0103] The first guide section (310) is opened in one direction and can form a path that guides the second unit (200) to open or close as it rotates from the first unit (100).

[0104] The second guide part (311) is coupled to one side of the opening of the first guide part (310) and is arranged so that one side of the second unit (200) comes into contact when the second unit (200) rotates in the opening or closing direction, thereby guiding rotation corresponding to the path described above.

[0105] At this time, the second unit (200) can be pushed up through the elastic part (311).

[0106] The cover portion (320) is fixed to the first guide portion (310) and is arranged to face the item to form an inner surface so that it can be seen by the user when the item storage container (10) is opened.

[0107] At this time, the inner surfaces of the first unit (100), the second unit (200), and the connecting unit (300) can be polished so that the surface roughness is 0.1 μm or less.

[0108] For example, as described above, when the item storage container (10) is opened, the inner surface (P12) of the seating portion (130) of the first unit (100) visible to the user, the inner surface (P22) of the protective portion (220), and the inner surface (P31) of the cover portion (320) can be polished so that the surface roughness is 0.1 μm or less, so that the inner surface can be made into a mirror-like surface with very high gloss (e.g., surface gloss grade N3 or lower).

[0109] An article storage container (10) according to one embodiment of the present invention having the above-described configuration may further include a support unit (400) that supports the lower part of the first unit (100) so that the first unit (100) or the entire article storage container (10) does not tip over.

[0110] If the entire item storage container (10) or the first unit (100) can be prevented from falling over due to the support unit (400), the method of combining the first unit (100) and the support unit may be diverse, and it is obvious that the scope of the rights of the present invention is not limited by this.

[0111] In other words, the first unit (100) can be fixed in the support unit (400) using at least one of the methods of a quick-release mechanism using a magnet, a screw thread, a bayonet mount, and a fixing pin or clip.

[0112] However, for a more detailed explanation, the bayonet mount configuration in which the first unit (100) is swept from the support unit (400) to be attached or detached is described as an example. The support unit (400) may include a base portion (410), a support portion (420), and a coupling portion (430) as shown in FIG. 11.

[0113] The support portion (410) can be provided in the form of a wide circular or rectangular flat plate so as to be in stable contact with the ground.

[0114] The support member (420) is coupled to the upper part of the base member (410), and an incision area having curvature for a sweep path can be formed.

[0115] Accordingly, the support member (420) and the first unit (100) can be inserted into the cut area and rotated to be fixed to the support unit.

[0116] At this time, a connecting part (430) is included for more secure fixation, and the connecting part (430) is provided to face the first unit (100) that has been introduced into the cut area, so that the first unit (100) can be pushed up toward the inner surface of the support part (420) using elastic force and pressed against it.

[0117] As previously explained, the outer surfaces of the first unit (100), the second unit (200), and the support unit (400) can also be provided with a surface roughness of 0.1 μm or less.

[0118] For example, as previously described, when the item storage container (10) is closed, the outer surface (P11) of the body part (110) of the first unit (100) visible to the user, the outer surface (P21) of the cover part (210) of the second unit (200), and the outer surface (P41) of the upper side of the support part (420) of the support unit can also be polished so that the surface roughness is 0.1 μm or less, so that the inner surface can be made into a mirror-like surface with very high gloss (for example, a surface gloss grade of N3 or lower).

[0119] We have examined preferred embodiments according to the invention, and it is obvious to those skilled in the art that, in addition to the embodiments described above, the invention may be embodied in other specific forms without departing from the spirit or scope thereof.

[0120] Therefore, the embodiments described above should be regarded as exemplary rather than limiting, and accordingly, the present invention is not limited to the description above but may be modified within the scope of the appended claims and their equivalents.

[0121] In other words, the embodiments of the present invention are not implemented only through the device and / or method of operation described above, but may also be implemented through a program for realizing a function corresponding to the configuration of the embodiments of the present invention, a recording medium on which such program is recorded, etc. Such implementation can be easily achieved by a person skilled in the art to which the present invention pertains from the description of the embodiments explained above. Although the embodiments of the present invention have been described in detail above, the scope of the rights of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims also fall within the scope of the rights of the present invention.

[0122]

[0123] Explanation of the symbols

[0124] 10: Item storage container

[0125] 100: 1st unit

[0126] 200: 2nd Unit

[0127] 300: Connection Unit

[0128] 400: Support Unit

[0129]

[0130] S100: Molding stage

[0131] S200: Surface polishing step

[0132] S300: Assembly stage

Claims

1. A method for manufacturing an article storage container comprising a first unit for fixing an article, a second unit for covering the first unit, and a connecting unit for allowing the second unit to rotate on the first unit, wherein A molding step for molding the first unit, the second unit, and the connecting unit; A surface polishing step for polishing the surfaces of the molded first unit, the second unit, and the connecting unit; and A method for manufacturing an article storage container comprising an assembly step of assembling components of the first unit, the second unit, and the connecting unit, The step of polishing the above surface is, Characterized by using wet grinding, or using the above wet grinding and dry grinding, Method for manufacturing a storage container for goods.

2. In Paragraph 1, The above wet grinding is, Characterized by using a mixed material of silicon carbide (SiC) and an aqueous nitric acid solution as a wet abrasive for polishing. Method for manufacturing a storage container for goods.

3. In Paragraph 2, The above wet abrasive is, Characterized by further including square or rectangular wool, Method for manufacturing a storage container for goods.

4. In Paragraph 3, The above wet abrasive is, Characterized by the silicon carbide (SiC) with a size of 300 µm to 50 µm, the aqueous nitric acid solution with a concentration of 4.5%, and the wool with a size of 2 mm to 10 mm being formed in a weight ratio of 2:6:

2. Method for manufacturing a storage container for goods.

5. In Paragraph 4, The above wet abrasive is, Characterized by changing the silicon carbide (SiC) of a size of 300 µm to 50 µm to the silicon carbide (SiC) of a size of 0.5 µm. Method for manufacturing a storage container for goods.

6. In Paragraph 4, The above wet abrasive is, Characterized by changing the silicon carbide (SiC) of 300 µm to 50 µm in size to aluminum oxide (Al2O3) of 0.05 µm in size. Method for manufacturing a storage container for goods.

7. A storage container for articles manufactured according to the method for manufacturing a storage container for articles of Paragraph 1, wherein A first unit for securing an item in an internal space; A second unit covering the first unit; and A connecting unit comprising a first unit that allows the second unit to rotate, Item storage container.

8. In Paragraph 7, The inner surfaces of the first unit, the second unit, and the connecting unit are, Characterized by a surface roughness of 0.1 μm or less, Item storage container.

9. In Paragraph 7, The above-mentioned first unit is, A body part forming an internal space; and Characterized by including a seating portion that is fixed inside the body portion to form an inner surface and secures an article. Item storage container.

10. In Paragraph 7, The above second unit is, A cover portion covering the above body portion; and Characterized by including a protective part connected to the interior of the above-mentioned cover part to form an inner surface and wrapping around an article. Item storage container.

11. In Paragraph 7, The above connecting unit is, A first guide part that opens in one direction and forms a path that guides the second unit to open or close as it rotates from the first unit; A second guide part coupled to an open side of the first guide part, arranged so that one side of the second unit contacts when the second unit rotates in the opening or closing direction, and guiding the rotation corresponding to the path; and Characterized by being arranged to face the article and forming an inner surface, and including a cover portion fixed to the first guide portion. Item storage container.

12. In Paragraph 7, A support unit further comprising a lower support unit to prevent the first unit from tipping over, Item storage container.

13. In Paragraph 12, The outer surfaces of the first unit, the second unit, and the support unit are, Characterized by a surface roughness of 0.1 μm or less, Item storage container.

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