KR102540432B1 - Method of manufacturing food container and container manufactured using same - Google Patents

Abstract

Disclosed is a method of manufacturing a food tray. The disclosed method of manufacturing a food tray comprises the steps of: forming a preliminary food tray structure from a metal plate through a press process and more specifically, forming the preliminary food tray structure having a main body part provided with a plurality of accommodation grooves holding food and an extension part extending outward from an edge area of the main body part; forming the extension part having a rolled structure by rolling the extension part by the degree that is given downward from the preliminary food tray structure; performing a surface treatment process on the preliminary food tray structure; inserting or mounting a filling member into the extension part having the rolled structure; and forming an edge part having a downward-bent and rolled shape and having an inner space filled with the filling member by performing a process for fixing the filling member to the extension part having the rolled structure. The present invention can easily manufacture a food tray capable of reducing noise and preventing damage.

Description

Method of manufacturing food container and container manufactured using same {Method of manufacturing food container and container manufactured using same}

The present invention relates to a container and a method for manufacturing the same, and more particularly, to a tray made to hold various foods separately and a method for manufacturing the same.

A food tray is a tableware in which concave grooves are formed to serve rice, soup, and three or four kinds of side dishes or to raise a bowl. Stainless food trays are widely used for reasons of durability and hygiene. Food trays are mainly used in large-scale restaurants serving group meals, such as schools, cafeterias, hospitals, and the military, and are also used in small and medium-sized restaurants and event halls.

A metal plate, such as a stainless steel plate, is manufactured by cutting and processing a metal plate. However, if the edge of the metal plate is sharp, it may cause injury to the user, so it is required to gently (not sharpen) the edge (border) of the plate.

However, there is a problem in that foreign substances such as food residues are easily inserted into the edge portion processed in a non-sharp shape in the existing food tray, and it is difficult to clean and dry the portion. Accordingly, the edge portion of the tray may cause various sanitary problems. In addition, in the case of existing food trays, there are problems and inconveniences such as noise and damage easily occurring in the process of washing and stacking food trays, and separation between trays is not well done.

A technical problem to be achieved by the present invention is to provide a method for manufacturing a food plate capable of effectively preventing foreign substances (contaminants) from entering the edge portion (edge portion) while gently processing the edge portion (edge portion).

In addition, the technical problem to be achieved by the present invention is to effectively prevent foreign substances (contaminants) from entering the edge portion (edge portion), as well as to reduce noise and prevent damage while increasing the convenience of use and management. It is to provide a method for manufacturing a food plate having a structure.

The problem to be solved by the present invention is not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

According to embodiments of the present invention for achieving the above object, a pre-dinner plate structure is formed from a metal plate through a press process, but in a main body portion having a plurality of receiving grooves capable of containing food and an edge region of the main body portion. forming the pre-dinner structure having an outwardly extended portion; forming an extension having a rolled structure by rolling the extension to a given extent downward of the preliminary plate structure; performing a surface treatment process on the preliminary tray structure; inserting or mounting a filling member into the expanded portion having the curled structure; And performing a process for fixing the filling member to the expanded portion having the rolled structure, bending downward to form a rounded shape and forming an edge portion filled with the filling member in the inner space thereof. , At least the main body portion, the edge portion, and the filling member are provided a method of manufacturing a food plate constituting one food plate.

The process of fixing the filling member may include a process of fixing the filling member by additionally rolling the extended portion having the rolled structure.

The process of fixing the filling member may include a process of fixing the filling member with a plastic material by performing insert injection molding on the expanded portion having the curled structure.

A gap area may be defined between an end of the edge portion and an edge area of the body portion, and a portion of the filling member may protrude out of the gap area.

A gap region may be defined between an end of the edge portion and an edge region of the body portion, and the method may further include inserting a bond material into the gap region after forming the edge portion.

The filling member may have a solid structure filled with an inside or a hollow structure with an empty inside.

According to other embodiments of the present invention, a pre-dinner structure is formed from a metal plate through a press process, and a main body portion having a plurality of accommodating grooves capable of containing food and an extension portion extending outward from an edge region of the main body portion are provided. forming the preliminary tray structure having; Forming a plurality of mutually spaced through holes in the expansion part; forming an edge portion having a rounded shape by rolling the expansion portion having the plurality of through holes downward of the pre-plate structure and having an inner space defined therein by the rolled shape; performing a surface treatment process on the preliminary tray structure; and forming a filling member having protrusions exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion; Including, at least the main body portion, the edge portion, and the filling member constitutes one food plate manufacturing method is provided.

The protruding portion may protrude about 0.5 mm to 5 mm from the surface of the edge portion around it.

A gap area may be defined between an end of the edge portion and an edge area of the body portion, and a portion of the filling member may protrude out of the gap area.

A gap region may be defined between an end portion of the edge portion and an edge region of the body portion, and the method may further include inserting a bond material into the gap region after forming the filling member.

In the container according to one embodiment, the edge region; an extension extending outward from the edge region; and a fixing member disposed at an upper end of one of the expansion part and the edge region to prevent an inflow of external substances, wherein the fixing member is formed through injection molding and may include a predetermined groove in one region. there is.

According to embodiments of the present invention, it is possible to easily manufacture a food plate capable of effectively preventing foreign substances (contaminants) from entering the edge portion (edge portion) while gently processing the edge portion (edge portion).

In addition, according to the embodiments of the present invention, it is possible to reduce noise and prevent damage while preventing foreign substances (contaminants) from entering the edge portion (edge portion) and at the same time increasing the convenience of use and management by a buffer effect. Plates can be easily prepared.

In particular, according to the embodiments of the present invention, since the edge portion (edge portion) of the food plate has a rounded structure, it is possible to prevent the user from being injured, and the filling member ( That is, it is possible to fundamentally prevent entry of foreign substances by filling the sealant member). In addition, according to embodiments of the present invention, a portion of the filling member protrudes through a through hole formed in the edge portion (edge portion), thereby providing a buffering effect (noise reduction, damage prevention), and slippage due to the protruding portion. It is possible to obtain a prevention effect and a separation effect by spacing between plates.

Therefore, it is possible to easily clean and sanitize the food plate, improve safety and convenience of use, and improve durability by reducing damage to the food plate.

However, the effects of the present invention are not limited to the above effects, and can be variously extended without departing from the technical spirit and scope of the present invention.

1A to 1G are views for explaining a method of manufacturing a food plate according to an embodiment of the present invention.
FIG. 2 is a photographic image showing the shape of a mold that can be used in a press process for forming a secondary preliminary tray structure as shown in FIG. 1B.
FIG. 3 is a photographic image showing a bending frame member for rolling an extension part in FIGS. 1E and 1G .
4A to 4C are cross-sectional views for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
5A to 5C are cross-sectional views illustrating a method of manufacturing a food plate according to another embodiment of the present invention.
6 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
7 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
8A to 8D are cross-sectional views for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
9 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
10 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
11 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.
12 is a diagram showing an example of a container implemented through injection.
13 is a diagram for explaining a method in which a filling member is implemented in a hollow shape according to an exemplary embodiment.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Embodiments of the present invention to be described below are provided to more clearly explain the present invention to those skilled in the art, and the scope of the present invention is not limited by the following examples, Embodiments may be modified in many different forms.

Terms used in this specification are used to describe specific embodiments and are not intended to limit the present invention. Terms in the singular form used herein may include plural forms unless the context clearly indicates otherwise. Also, as used herein, the terms "comprise" and/or "comprising" specify the presence of the stated shape, step, number, operation, member, element, and/or group thereof. and does not exclude the presence or addition of one or more other shapes, steps, numbers, operations, elements, elements and/or groups thereof. In addition, the term “connection” used in this specification means not only direct connection of certain members, but also a concept including indirect connection by intervening other members between the members.

In addition, when a member is said to be located “on” another member in the present specification, this includes not only a case where a member is in contact with another member, but also a case where another member exists between the two members. As used herein, the term “and/or” includes any one and all combinations of one or more of the listed items. In addition, terms of degree such as "about" and "substantially" used in the present specification are used in a range of values or degrees or meanings close thereto, taking into account inherent manufacturing and material tolerances, and are used to help the understanding of the present application. Exact or absolute figures provided for this purpose are used to prevent undue exploitation by infringers of the stated disclosure.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The size or thickness of areas or parts shown in the accompanying drawings may be slightly exaggerated for clarity of the specification and convenience of description. Like reference numbers indicate like elements throughout the detailed description.

1A to 1G are views for explaining a method of manufacturing a food plate according to an embodiment of the present invention. 1A to 1C are photographic images, and FIGS. 1D to 1G are partial cross-sectional views.

Referring to FIG. 1A , a primary preliminary tray structure 200a may be formed from a metal plate through a press process using a predetermined mold. A plurality of receiving grooves G10 having a concave shape may be formed in the primary preliminary tray structure 200a. The metal plate may be, for example, a metal steel plate. The primary preliminary tray structure 200a may be referred to as a first result. In FIG. 1A , the upper drawing image shows the upper surface of the primary preliminary tray structure 200a, and the lower drawing image shows the side of the primary preliminary tray structure 200a.

Referring to FIG. 1B , a secondary preliminary tray structure 200b may be formed from the first preliminary tray structure 200a in FIG. 1B through a press process using a predetermined mold. The secondary preliminary tray structure 200b may be referred to as a second result. In Figure 1b, the upper drawing image shows the upper surface of the secondary preliminary tray structure 200b, and the lower drawing image shows the side of the secondary preliminary tray structure 200b.

The secondary pre-dinner structure 200b may include a body portion 100 having a plurality of accommodating grooves G10 and an extension portion 120 extending outward from the edge region 110 of the body portion 100. there is. The body portion 100 may have an overall substantially flat structure, and a plurality of receiving grooves G10 may be formed to be recessed downward in the body portion 100 . The plurality of accommodating grooves G10 may include a plurality of grooves capable of containing food. The plurality of grooves may include grooves that can contain rice, grooves that can contain soup or soup, and grooves that can contain side dishes. In addition, the plurality of accommodating grooves G10 may further include grooves for placing cutlery. In this step, the expansion part 120 may have a substantially flat plate-like structure.

FIG. 2 is a photographic image showing a shape of a mold that can be used in a press process for forming a secondary preliminary tray structure 200b as shown in FIG. 1B. However, the shape of the mold of FIG. 2 is only exemplary, and the specific shape of the mold may be variously changed.

Referring to FIG. 1C , the outer edge of the expansion part 120 in the secondary preliminary tray structure 200b may be cut and removed. The red dotted line in the drawing roughly indicates the cutting line. The expansion part 120 around the main body part 100 may be removed by leaving a predetermined width and cutting the remaining part. The secondary preliminary tray structure 200b obtained after the cutting may be referred to as a 'preliminary tray structure'.

The method of preparing the 'preliminary tray structure' is not limited to the method described with reference to FIGS. 1A to 1C and may be variously changed. For example, only one press process may be used without going through two press processes, or a process of cutting the edge of the extension part 120 may be performed together with the press process.

1D is a cross-sectional view exemplarily showing an edge portion of the 'preliminary tray structure'. Referring to FIG. 1D , an extension portion 120 extending outward from the edge region 110 of the body portion ( 100 in FIG. 1C ) may be provided. Here, the extension 120 may be cut to a predetermined width by the above-described cutting process, and may have a flat shape.

Referring to FIG. 1E , an extension 120a having a rolled structure may be formed by rolling the extension 120 downward to a given extent of the pre-plate structure. The extension portion 120a having a rolled structure may have a 'preliminary shape' for forming the edge portion. A specific shape of the extended portion 120a having a curled structure is exemplary, and an angle or degree of curvature may vary depending on the case.

Referring to FIG. 1F , a surface treatment process may be performed on the preliminary tray structure. Through the surface treatment process, it is possible to obtain an effect of removing grease and the like from the preliminary tray structure made of metal and polishing or washing the surface. The metal may be, for example, stainless steel. Since the surface treatment process may follow a general surface treatment method for a metal plate such as a stainless steel plate, a detailed description thereof will be omitted.

Referring to FIG. 1G , after inserting or mounting a filling member 130 into the extended portion 120a having the rolled structure, the filling member 130 is inserted into the extended portion 120a having the rolled structure. By performing a process for fixing, it is possible to form the edge portion 120E filled with the filling member 130 in its inner space while having a rounded shape by being bent downward. Here, the filling member 130 may be made of a polymer material such as urethane, silicone, or epoxy, and may have a ring structure (ie, an annular structure) in its overall shape. . The filling member 130 may be hooked and mounted on the extended portion 120a having the curled structure, or may be inserted and disposed in other ways. The filling member 130 may also be referred to as a kind of sealant member. The process of fixing the filling member 130 may include a process of fixing the filling member 130 by further rolling the extended portion 120a having the rolled structure. In other words, the edge portion 120E for fixing the filling member 130 may be formed by finally rolling the extension portion 120a having the rolled structure once more. In this case, the edge portion 120E may be deformed from the extension portion 120a.

The food plate finally manufactured through the process of FIGS. 1A to 1G may include at least the body portion 100, the edge portion 120E, and the filling member 130. In other words, it can be said that at least the body portion 100, the edge portion 120E, and the filling member 130 constitute one food plate.

FIG. 3 is a photographic image showing a frame member for bending (ie, a mold member for bending) for rolling (ie, bending) the expansion parts 120 and 120a in FIGS. 1E and 1G. A groove area may be provided at an edge of the bending frame member, and after disposing the extension parts 120 and 120a corresponding to the groove area, the extension part 120, 120a) can be rolled. At this time, the degree of drying can be adjusted by adjusting the pressure and controlling the movement of the press device.

4A to 4C are cross-sectional views for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 4A , in the structure described in FIG. 1D , an extension 121a having a rolled structure may be formed by rolling the extension 120 to a certain extent. The extended portion 121a having a rolled structure may have a 'preliminary shape' for forming the edge portion. In this embodiment, the extension 121a having a rolled structure may have a relatively less rolled structure than the extension 120a having a curled structure of FIG. 1E .

Referring to FIG. 4B , a surface treatment process may be performed on the preliminary tray structure of FIG. 4A. The surface treatment process may be the same as that described in FIG. 1F.

Referring to FIG. 4C , a process for fixing the filling member 130 to the extended portion 121a having the curled structure after inserting or mounting the filling member 130 into the extended portion 121a having the rolled structure. By performing, it is possible to form an edge portion 121E filled with the filling member 130 in the inner space while having a rounded shape by being bent downward. The process of fixing the filling member 130 may include a process of fixing the filling member 130 by further rolling the extended portion 121a having the rolled structure. That is, the edge portion 121E for fixing the filling member 130 may be formed by finally rolling the extended portion 121a having the rolled structure once more.

Depending on the embodiment, the feeding plate may be manufactured in a form in which the filling member 130 is later inserted in the feeding plate structure shown in FIG. 4C. More specifically, in a state in which the filling member 130 is excluded from the plate structure shown in FIG. 4C, a material (eg, silicon, etc.) ), the filling member 130 may be formed, or the filling member 130 may be formed by injecting a material through a hole additionally provided in the edge portion 121E.

5A to 5C are cross-sectional views illustrating a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 5A , after manufacturing a preliminary platen structure including an extension portion 122a having a rolled structure similar to the structure of FIG. 1F , a surface treatment process may be performed on the preliminary platen structure.

Referring to FIG. 5B , the filling member 130 may be inserted or mounted in the extended portion 122a having a rolled structure. The filling member 130 may have a ring structure (ie, an annular structure).

Referring to FIG. 5C , a process for fixing the filling member 130 to the extended portion 122a having a rolled structure may be performed. The process of fixing the filling member 130 may include a process of fixing the filling member 130 with a plastic material by performing insert injection molding on at least the expanded portion 122a having a rolled structure. there is. In the insert injection molding, the preliminary tray structure to which the filling member 130 is mounted is inserted into a mold made of metal as an insert, and a plastic material is injected into the mold to produce an injection product in which the preliminary tray structure and the plastic material are combined. it can be a way Reference numeral 140 denotes a 'fixing member' formed of the plastic material by the insert injection molding. The fixing member 140 may serve to fix the filling member 130 while covering the opening area of the expanded portion 122a having a rolled structure. The fixing member 140 may be firmly fixed by being combined with at least the extended portion 122a having a rolled structure. In addition, the fixing member 140 may be made of other moldable materials in addition to plastic materials, and the shape of the fixing member 140 formed through injection may be any shape such as a star shape, a round shape, a square shape, a triangular shape, and the like. It can be implemented in any color.

In FIG. 5C , reference numeral 122E denotes an 'edge portion' including an extension 122a having a curled structure and a fixing member 140 coupled thereto.

When the fixing member 140 is formed and finished using the insert injection molding, the structure of the preliminary tray structure before injection and the structure of the injection product after injection are not limited to those shown in FIGS. 5B and 5C, and variously can be transformed In the case of using the insert injection molding, there is an advantage in that the shape/structure of the final product (injection product) can be determined more freely. In addition, the material of the injection molding product may be implemented with any material such as silicon in addition to plastic.

In addition, in FIG. 5C, the edge region 110 and the extension 122a covered by the injection molding are merely examples, and the structure can be implemented in any shape such as a rectangle or a plurality of concentric circles. will understand

In addition, in the presented example, the fixing member 140 is presented as being implemented in a form surrounding a part of the extension part 122a, but the embodiment is not limited thereto, and the fixing member 140 is part of the edge region 110. It may be implemented in such a way as to extend to the region or the inner region of the tableware.

In addition, a certain area of the area covered by the fixing member 140 may be provided with a predetermined groove to provide a well-ventilated structure, which facilitates drying and, when containers are stacked, the groove through the container. It can provide a function that allows air to flow well between them so that they are well separated from each other.

In addition, noise can be reduced when containers are stacked through the preceding structures, and favorable sensitivity as a product can be increased through the implementation of various shapes/colors, and the sealing effect of the hind part can be increased.

In addition, in the process of implementing the fixing member 140, in order to more easily attach the injection-molded product to the container, a predetermined number of grooves may be formed on the container and then the injection-molded product may be attached thereto.

6 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 6, a food plate may be manufactured in a similar manner to that described in FIGS. 1A to 1G. At this time, a gap area may be defined between the end (end) of the edge portion 120E and the edge area 110 of the body portion (see FIG. 1G ). In this embodiment, a portion of the filling member 130a may be made to protrude outside the gap area. Here, reference number P1 denotes a 'protrusion' of the filling member 130a protruding through the gap area. Hereinafter, the protruding part P1 is referred to as a 'first protruding part'. By forming the first protrusion P1, it is possible to completely (or almost completely) prevent water or other foreign substances from entering the inner space of the edge portion 120E.

7 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 7 , a food plate may be manufactured in a similar manner to that described in FIGS. 1A to 1G . At this time, a gap area may be defined between the end (end) of the edge portion 120E and the edge area 110 of the body portion (see FIG. 1G ). This embodiment may further include inserting a bond material B1 into the gap area after forming the edge portion 120E. By filling the gap region with the bond material B1, it is possible to completely (or almost completely) prevent water or other foreign substances from entering the inner space of the edge portion 120E.

In the above-described embodiments, the filling members 130 and 130a of FIGS. 1G, 4C, 5C, 6, and 7 are shown as having a solid structure filled therein, but according to other embodiments, , The filling members 130 and 130a may have a hollow structure with an empty inside.

In the embodiments described with reference to FIGS. 1A to 7 , since the edge portions 120E, 121E, and 122E of the food tray have a rolled structure, it is possible to prevent users from being injured, and the edge portions 120E, 121E, and 122E By filling the inner space of the filling member (130, 130a) it is possible to prevent foreign substances from entering. In addition, by forming the fixing member 140 as shown in FIG. 5C, forming the first protrusion P1 as shown in FIG. 6, or forming the bond material B1 as shown in FIG. 7, the edge portions 120E, 121E, and 122E ) can fundamentally prevent water or moisture from penetrating into the inner space. As the filling members 130 and 130a fill the inner spaces of the edge portions 120E, 121E, and 122E, noise reduction effects and durability improvement effects may be obtained.

8A to 8D are cross-sectional views for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 8A, similarly to FIGS. 1A to 1D, a preliminary tray structure is formed from a metal plate through a press process, but the main body portion is provided with a plurality of receiving grooves (G10 in FIG. 1C) for holding food. It is possible to form the pre-plate structure having an extension part 123 extending outward from the edge area 110 of (100 in FIG. 1C) and the main body part (100 in FIG. 1C).

Then, a plurality of mutually spaced through holes H1 may be formed in the expansion part 123 . Although one through hole H1 is shown in FIG. 8A , a plurality of through holes H1 may be regularly formed spaced apart from each other in the expansion part 123 of the preliminary plate structure. Each of the plurality of through holes H1 may have a shape of any one of a circular shape, an elliptical shape, a square shape, a rectangular shape, and a rectangular shape with rounded corners.

Referring to FIG. 8B, the edge portion 123E in which the expansion portion 123 having the through hole H1 is rolled downward of the preliminary plate structure has a rounded shape and an inner space is defined therein by the rolled shape ) can be formed. At this time, the degree of 'curling' may be a degree corresponding to the final product rather than a preliminary (intermediate) level. The through hole H1 may be disposed on the lower side of the edge portion 123E.

Referring to FIG. 8C , a surface treatment process may be performed on the preliminary tray structure. The surface treatment process may be the same as that described in FIG. 1F.

Referring to FIG. 8D, a filling material is inserted into the inner space through at least some of the plurality of through holes H1 of the edge portion 123E to fill the inner space through the plurality of through holes H1. A filling member 131 having an exposed and protruding protruding portion P2 may be formed. The protrusion P2 may be referred to as a 'second protrusion'. The second protrusion part P2 may protrude downward from the edge part 123E.

The second protrusion P2 may protrude from the surface of the edge portion 123E around it by about 0.5 mm to about 5 mm. In other words, the protruding length of the second protruding portion P2 with respect to the surface of the edge portion 123E may be about 0.5 mm to about 5 mm. If the protrusion length is too short, it may be difficult to obtain a sufficient buffering effect, and if the protrusion length is too long, the possibility of damage to the second protrusion part P2 may increase somewhat. Therefore, it may be preferable that the protruding length of the second protruding portion P2 is greater than or equal to about 0.5 mm and less than or equal to 5 mm.

The food plate finally manufactured through the process of FIGS. 8A to 8D may include at least the body portion 100, the edge portion 123E, and the filling member 131. In other words, it can be said that at least the body part 100, the edge part 123E, and the filling member 131 constitute one food plate.

9 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 9 , a food plate may be manufactured in a method similar to that described in FIGS. 8a to 8d. At this time, a gap area may be defined between the end (end) of the edge portion 123E and the edge area 110 of the body portion (see FIG. 8D ). In this embodiment, a portion of the filling member 131 may be made to protrude outside the gap area. Reference numeral P1 denotes a protruding portion (a first protruding portion) of the filling member 131 protruding through the gap region. By forming the first protrusion P1, it is possible to completely (or almost completely) prevent water or other foreign substances from entering the inner space of the edge portion 123E.

10 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 10 , a food plate may be manufactured in a similar manner to that described in FIGS. 8a to 8d. At this time, a gap area may be defined between the end (end) of the edge portion 123E and the edge area 110 of the body portion (see FIG. 8D ). The present embodiment may further include a step of inserting a bond material B1 into the gap region after the step of forming the edge portion 123E. By filling the gap region with the bond material B1, it is possible to completely (or almost completely) prevent water or other foreign substances from entering the inner space of the edge portion 123E.

In the embodiments of FIGS. 8A to 8D, the case where the plurality of through holes H1 are arranged on the lower side of the edge portion 123E has been shown and described, but according to another embodiment, a plurality of through holes are disposed on the upper side of the edge portion may be placed in In this case, the second protrusion protruding through the through hole may also protrude upward from the edge portion. This modified example will be described with reference to FIG. 11 .

11 is a cross-sectional view for explaining a method of manufacturing a food plate according to another embodiment of the present invention.

Referring to FIG. 11 , an edge portion 124E having a rounded shape and having an inner space defined therein by the rolled shape may be formed by rolling the expansion portion having the through hole downward of the pre-plate structure. The through hole may be disposed on an upper side of the edge portion 124E. Filling with a second protrusion P3 exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion 123E. member 133 may be formed. The second protrusion P3 may protrude upward from the edge portion 124E. The second protrusion P3 may protrude from the surface of the edge portion 124E around it by about 0.5 mm to about 5 mm. In other words, the protruding length of the second protruding portion P3 relative to the surface of the edge portion 124E may be about 0.5 mm to about 5 mm.

According to the embodiments described with reference to FIGS. 8A to 11 , since the edge portions 123E and 124E of the food tray have a rolled structure, it is possible to prevent a user from being injured, and the inside of the edge portions 123E and 124E By filling the space with the filling members 131, 132, and 133, it is possible to fundamentally prevent foreign matter from entering.

In addition, according to the present embodiments, a part of the filling members 131, 132, and 133 protrudes through through-holes formed in the edge portions 123E and 124E, so that a buffering effect by the second protrusions P2 and P3 is achieved. can be obtained. Due to the buffering effect, it is possible to reduce noise generated between food trays and to obtain an effect of preventing damage to food trays. In addition, the second protrusions P2 and P3 may play a role of preventing the food tray from slipping during use and washing. In addition, the second protrusions P2 and P3 may play a role of facilitating separation between the trays when the trays are washed.

12 is a diagram showing an example of a container implemented through injection.

Referring to FIG. 12 , the fixing member produced through injection may be implemented in various forms as shown in orange, and the edge portion of the container may also be implemented in various forms.

In addition, the fixing member may be implemented in a concave or convex shape on the upper and lower sides as shown on the right to provide an embossing effect.

Therefore, when the food tray according to the present embodiment is used, sanitary management and washing of the food tray can be easily performed, safety and convenience of use can be improved, and durability of the tray can be improved by reducing damage to the tray.

13 is a diagram for explaining a method in which a filling member is implemented in a hollow shape according to an exemplary embodiment.

Referring to FIG. 13, in order for the filling member to be implemented in a hollow shape, a material corresponding to the filling member is attached to the existing edge, and then a hollow-shaped filling member can be implemented through a rolling operation using a press. .

According to the embodiments of the present invention described above, it is possible to easily manufacture a food plate capable of effectively preventing foreign substances (contaminants) from entering the edge portion (edge portion) while gently processing the edge portion (edge portion). there is. In addition, according to the embodiments of the present invention, it is possible to reduce noise and prevent damage while preventing foreign substances (contaminants) from entering the edge portion (edge portion) and at the same time increasing the convenience of use and management by a buffer effect. Plates can be easily manufactured. In particular, according to the embodiments of the present invention, since the edge portion (edge portion) of the food plate has a rounded structure, it is possible to prevent the user from being injured, and the filling member ( That is, it is possible to fundamentally prevent entry of foreign substances by filling the sealant member). In addition, according to embodiments of the present invention, a portion of the filling member protrudes through a through hole formed in the edge portion (edge portion), thereby providing a buffering effect (noise reduction, damage prevention), and slippage due to the protruding portion. It is possible to obtain a prevention effect and a separation effect by spacing between plates. Therefore, it is possible to easily clean and sanitize the food plate, improve safety and convenience of use, and improve durability by reducing damage to the food plate.

A person skilled in the art will understand that all the structures of the edge region 110 and extension 120 described above can be implemented at the back of any container.

In this specification, preferred embodiments of the present invention have been disclosed, and although specific terms have been used, they are only used in a general sense to easily explain the technical details of the present invention and help understanding of the present invention, and do not limit the scope of the present invention. It is not meant to be limiting. It is obvious to those skilled in the art that other modifications based on the technical idea of the present invention can be implemented in addition to the embodiments disclosed herein. For example, those skilled in the art will know that the manufacturing method of the food plate according to the embodiment described with reference to FIGS. 1A to 11 can be variously changed, and also, in this way, It will be appreciated that the specific structure of the prepared food plate may also be modified in various ways. Therefore, the scope of the invention should not be determined by the described embodiments, but by the technical idea described in the claims.

* Description of symbols for main parts of drawings *
100: body part 110: edge area
120, 120a: extension part 120E, 121E, 122E: edge part
130, 130a: filling member 140: fixing member
200a: primary food plate structure 200b: secondary food plate structure
G10: receiving groove B1: bond material
H1: through hole P1: first protrusion
P2, P3: Second protrusion

Claims (11)

delete delete delete delete delete delete Forming a preliminary plate structure from a metal plate through a press process, wherein the preliminary plate structure has a main body having a plurality of accommodating grooves for holding food and an extension extending outward from an edge region of the main body;
Forming a plurality of mutually spaced through holes in the expansion part;
forming an edge portion having a rounded shape by rolling the expansion portion having the plurality of through holes downward of the pre-plate structure and having an inner space defined therein by the rolled shape;
performing a surface treatment process on the preliminary tray structure; and
Forming a filling member having a protruding portion exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion; include,
A method of manufacturing a food plate, wherein at least the body portion, the edge portion, and the filling member constitute one food plate. Forming a preliminary plate structure from a metal plate through a press process, wherein the preliminary plate structure has a main body having a plurality of accommodating grooves for holding food and an extension extending outward from an edge region of the main body;
Forming a plurality of mutually spaced through holes in the expansion part;
forming an edge portion having a rounded shape by rolling the expansion portion having the plurality of through holes downward of the pre-plate structure and having an inner space defined therein by the rolled shape;
performing a surface treatment process on the preliminary tray structure; and
Forming a filling member having a protruding portion exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion; include,
At least the body portion, the edge portion, and the filling member constitute one food plate;
The protruding portion protrudes by 0.5 mm to 5 mm with respect to the surface of the edge portion around it. Forming a preliminary plate structure from a metal plate through a press process, wherein the preliminary plate structure has a main body having a plurality of accommodating grooves for holding food and an extension extending outward from an edge region of the main body;
Forming a plurality of mutually spaced through holes in the expansion part;
forming an edge portion having a rounded shape by rolling the expansion portion having the plurality of through holes downward of the pre-plate structure and having an inner space defined therein by the rolled shape;
performing a surface treatment process on the preliminary tray structure; and
Forming a filling member having a protruding portion exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion; include,
At least the body portion, the edge portion, and the filling member constitute one food plate;
A gap area is defined between an end of the edge portion and an edge area of the body portion,
A method of manufacturing a food plate in which a portion of the filling member protrudes to the outside of the gap region. Forming a preliminary plate structure from a metal plate through a press process, wherein the preliminary plate structure has a main body having a plurality of accommodating grooves for holding food and an extension extending outward from an edge region of the main body;
Forming a plurality of mutually spaced through holes in the expansion part;
forming an edge portion having a rounded shape by rolling the expansion portion having the plurality of through holes downward of the pre-plate structure and having an inner space defined therein by the rolled shape;
performing a surface treatment process on the preliminary tray structure; and
Forming a filling member having a protruding portion exposed and protruding through the plurality of through holes while filling the inner space by inserting a filling material into the inner space through at least some of the plurality of through holes of the edge portion; include,
At least the body portion, the edge portion, and the filling member constitute one food plate;
A gap area is defined between an end of the edge portion and an edge area of the body portion,
The method of manufacturing a food plate further comprising inserting a bond material into the gap region after the step of forming the filling member.
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