container
The container design addresses assembly complexity and strength issues by using a thin upper edge for easy engagement and a thick base body, resulting in a stable, practical, and compact storage solution.
Patent Information
- Application Number
- JP2021214647
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2021-12-28
- Publication Date
- 2026-01-06
- Estimated Expiration
- 2041-12-28
AI Technical Summary
Existing containers with a frame-shaped base body and synthetic resin container body face difficulties in easy assembly due to complex engagement mechanisms, and the base body's strength is not optimally designed.
The container design features a base body with a thin upper edge and engagement recesses on the container body, allowing easy assembly by inserting and locking the thin portion into the recess, while the base body can be designed to be thick for enhanced strength, with corners designed to facilitate easy engagement and stability.
This configuration simplifies assembly, ensures high strength, and maintains a stable assembled state, making the container more practical for use and storage, with improved ease of handling and reduced bulkiness.
Smart Images

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Abstract
Description
[Technical Field]
[0001] The present invention relates to a container suitable for storing food, for example. [Background technology]
[0002] Simple containers have been proposed in the past that consist of a frame-shaped base body and a synthetic resin container body with a recess formed therein for storing food, etc., and can be assembled by dropping the container body onto the base body and engaging the engaging recess on the upper outer edge of the container body with the upper edge of the base body (see, for example, Patent Document 1). [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Patent No. 6632489 Summary of the Invention [Problem to be solved by the invention]
[0004] The present invention relates to an improvement to a simple container such as that in Patent Document 1, and provides a container in which the engaging recess of the container body can be easily engaged with the upper edge of the base body, simplifying assembly work, and also enabling the base body to be easily designed to exhibit high strength. [Means for solving the problem]
[0005] The gist of the present invention will be explained with reference to the accompanying drawings.
[0006] The device comprises a base body 1 having a frame shape in a plan view, and a container body 2 made of synthetic resin that is housed and assembled within the base body 1. The base body 1 has a plate-shaped thin portion 3 on its upper edge, The container body 2 is integrally formed with an engagement recess 4 that is groove-shaped and recessed upward on the outer periphery, and the container body 2 is assembled to the base body 1 by inserting and locking a thin portion 3 on the upper edge of the base body 1 into the engagement recess 4 while accommodating the container body 2 within the base body 1. 、 The base body 1 is made up of stacked plate materials 5, and the plate materials 5 are stacked with their positions shifted vertically, so that the upper edge is formed as the thin portion 3 of one plate material 5. The present invention relates to a container characterized by the above.
[0007] The base body 1 has the thin portion 3 provided around the entire upper edge thereof, The container according to claim 1, wherein the container body (2) is provided with the engagement recesses (4) on the entire outer periphery.
[0008] The container according to claim 2, wherein the base body 1 has the thin-walled portion 3 provided on the entire periphery except for the corners of the upper edge.
[0009] The base body 1 is made of a folded paper material 5 that has been folded in half so that the folded edge side is the lower part and the opposite folded edge side is the upper part, and the paper material 5 is folded with the upper folded edge position shifted up and down, so that the upper edge is made of the thin portion 3 of one sheet of paper material 5. 3 The present invention relates to a container according to any one of the above items.
[0010] The base body 1 is provided with a folded edge 6 and is configured to be foldable into a flat state via the folded edge 6. 4 The present invention relates to a container according to any one of the above items. [Effects of the Invention]
[0011] Since the present invention is configured as described above, the upper edge of the base body is thin, which makes it easy to insert and engage this thin portion into the engaging recess of the container body, facilitating the assembly of the base body and the container body.Furthermore, the base body can be designed to be thick except for the upper edge (thin portion), making it easy to design and realize a high-strength base body, resulting in a container with extremely excellent practicality.
[0012] Furthermore, in the present invention and the invention described in claim 4, the upper part is thin (thin part) and can be easily inserted and locked into the engagement recess, and the base body below this thin part is thick and exhibits high strength, making it possible to easily cut out the base body with a simple structure, resulting in a container with an even more practical configuration.
[0013] Furthermore, in the inventions described in claims 2 and 3, the engagement between the thin portion of the upper edge of the base body and the engaging recess of the container body becomes more stable, and the assembled state of the base body and container body (completed state of the container) is maintained stably. In particular, when configured as in the invention described in claim 3, even if the container body has corners, the thin portion can be easily inserted and engaged into the engaging recess, making the assembly work of the base body and container body easy, resulting in a container with an extremely practical configuration.
[0014] Also, claims 5 In the described invention, the base can be folded into a flat state, resulting in a container with a more practical configuration that is less bulky and more suitable for storage, transportation, etc. [Brief explanation of the drawings]
[0015] [Figure 1] FIG. 1 is a perspective view showing the present embodiment. [Figure 2] FIG. 1 is an exploded perspective view showing the present embodiment. [Figure 3] FIG. 1 is a side cross-sectional view showing the present embodiment. [Figure 4] FIG. 2 is a partially enlarged cross-sectional side view showing the assembly structure of the base body and the container body of the present embodiment. [Figure 5] FIG. 2 is a perspective view showing a folded state of the base body of the present embodiment. DETAILED DESCRIPTION OF THE INVENTION
[0016] The best mode for carrying out the present invention will now be briefly described with reference to the accompanying drawings, illustrating the operation of the present invention.
[0017] While the container body 2 is housed within the base body 1, which has a frame shape when viewed from above, the thin-walled portion 3 on the upper edge of the base body 1 is inserted and engaged into the engagement recess 4, which has a groove-like shape recessed upward toward the outer periphery of the container body 2, and the container body 2 is assembled to the base body 1, completing the container of the present invention.
[0018] At this time, since the upper edge of the base body 1 is the thin portion 3, this thin portion 3 can be easily inserted into the engagement recess 4 and locked, and the assembly work of the container body 2 and the base body 1 can be easily performed.
[0019] Furthermore, since the base body 1 can be designed to be thick except for the thin portion 3 at the upper edge, it is easy to ensure the strength of the base body 1. [Example]
[0020] Specific embodiments of the present invention will be described with reference to the drawings.
[0021] The container of this embodiment is composed of a foldable base body 1 that forms a rectangular frame when opened in a plan view, and a container body 2 that is integrally molded from a thin synthetic resin. The lower part of the container body 2 is accommodated by dropping it onto the top of the base body 1, and the outer edge of the container body 2 is placed over the upper edge of the base body 1 from above, thereby assembling the base body 1 and the container body 2 (see Figures 1 to 3).
[0022] The base body 1 of this embodiment is made up of overlapping plate materials 5. More specifically, the base body 1 is made up of a horizontally long strip of paper material 5 (plate material 5) that is made by folding a hard cardboard about 1 mm thick in half, with the folded edge side at the bottom and the opposite folded edge side at the top. The base body 1 may also be made of synthetic resin.
[0023] In addition, the paper material 5 is kept folded by a fastening means such as adhesive, and both ends of the paper material 5 in the longitudinal direction are connected by a connecting means to form a frame shape (annular), and the annular paper material 5 is folded at multiple points to form a rectangular frame shape when viewed in a plane.
[0024] Furthermore, as a means for connecting both ends of the paper material 5, for example, a configuration in which a glue tab is provided at both ends or either end of the paper material 5 and the both ends are glued via this glue tab, or a configuration in which both ends of the paper material 5 are adhered with an adhesive tape such as paper tape or vinyl tape (in this case, for example, as described below, if a configuration is adopted in which both ends of the paper material 5 are cut at a 45-degree angle in a plan view relative to the outer surface of the paper material 5, the 45-degree end faces of both ends can be brought into contact with each other and then taped together easily), or other connecting means can also be used.
[0025] Furthermore, an exterior sheet 7 having functions such as waterproofing, durability, and decoration is attached to at least the outer surface of the paper material 5 (cardboard) that constitutes the base body 1, and grooves are cut out lengthwise at three predetermined locations, leaving behind this exterior sheet 7, and the connection between the cut-out cardboard parts where only the exterior sheet 7 remains and both ends of the paper material 5 constitutes foldable folding edges 6. The base body 1 is configured to be foldable into a strip-like shape as shown in Figure 5 via these four folding edges 6, and when the paper material 5 is unfolded to form the rectangular frame-shaped base body 1, these four folding edges 6 become the corners of the rectangular base body 1 as shown in Figure 2.
[0026] In addition, two folded edges 6A located on one diagonal of the rectangular frame-shaped base body 1 are cut into the paper material 5 at these folded edges 6A in the shape of relatively wide vertical grooves, so that the two sides of the paper material 5 adjacent to these folded edges 6A can be bent via these folded edges 6A in a direction greater than 90 degrees or less than 90 degrees in a planar view.
[0027] Furthermore, one of the two fold edges 6 located on the other diagonal of the rectangular frame-shaped base body 1 (fold edge 6B, which is the connection between both ends of the paper material 5) is not shown in detail, but both ends of the paper material 5 at this fold edge 6B are formed into end faces shaped to have a 45-degree angle in a planar view relative to the outer surface of the paper material 5, and when folded at this fold edge 6B so that the 45-degree end faces adjacent to fold edge 6B meet each other, the two sides of the paper material 5 adjacent to fold edge 6B form an angle of 90 degrees in a planar view.From this 90-degree state, it is possible to bend the two sides of the paper material 5 adjacent to fold edge 6B via fold edge 6B in a direction that expands the angle to more than 90 degrees in a planar view, but it is configured so that bending it to an angle of less than 90 degrees in a planar view is difficult because the 45-degree end faces collide with each other.
[0028] In addition, the folded edge 6C located diagonally from the folded edge 6B has the paper material 5 at the folded edge 6C cut into a vertical groove shape that is narrower than the folded edge 6A, and the cut edge has been cut into a shape that forms an angle of 90 degrees in a planar view with respect to the outer surface of the paper material 5. When the angle formed by the two sides of the paper material 5 adjacent to the folded edge 6C is approximately 90 degrees in a planar view, one edge of the paper material 5 adjacent to the folded edge 6C comes into contact with the other edge, or both edges come into contact with each other. From this 90-degree state, it is possible to bend the two sides of the paper material 5 adjacent to the folded edge 6C in a direction that expands the angle to more than 90 degrees in a planar view, but it is configured so that bending it to an angle less than 90 degrees in a planar view is difficult because one edge of the paper material 5 adjacent to the folded edge 6C comes into contact with the other edge, or both edges come into contact with each other.
[0029] That is, the folding edges 6B, 6C are limited to a bending range of only about 90 degrees between the unfolded state of the base body 1, where the angle between the two sides of the paper material 5 adjacent to the folding edges 6B, 6C is 90 degrees, and the folded state of the base body 1, where the angle between the two sides of the paper material 5 adjacent to the folding edges 6B, 6C is 180 degrees. Therefore, when folding the unfolded base body 1, it is configured so that it can only be folded in a direction that increases the angle between the two sides of the paper material 5 adjacent to the folding edges 6B, 6C to 90 degrees or more, and conversely, when unfolding the folded base body 1, it is configured so that once the angle between the two sides of the paper material 5 adjacent to the folding edges 6B, 6C reaches about 90 degrees in a plan view, it cannot be folded any further in a direction that reduces the angle (so that the base body 1 does not go beyond the state in which it is unfolded into a rectangular frame shape and return to a folded state).
[0030] Furthermore, the folded edges 6B and 6C may have the same configuration as the folded edge 6A, the folded edge 6B may have the same configuration as the folded edge 6C, or the folded edge 6C may have the same configuration as the folded edge 6B.
[0031] The base body 1 also has a plate-shaped thin portion 3 on the upper edge.
[0032] Specifically, the folded paper material 5 is folded over with the position of the upper folded edge shifted up and down (so that the folded edge (top end) of the outer part of the paper material 5 is positioned lower than the folded edge (top end) of the inner part of the paper material 5), so that the entire upper edge is configured as the thin part 3 of one piece of paper material 5, and the part below this thin part 3 is actually as thick as two pieces of paper material 5, ensuring strength.
[0033] The base body 1 has the thin-walled portions 3 provided all around the periphery except for the corners of the upper edge. More specifically, the corners (four corners) of the base body 1 are configured as non-material portions 8 where the thin-walled portions 3 have been removed, and the illustrated non-material portions 8 are removed so that the edge (removed edge) of the adjacent thin-walled portion 3 becomes an inclined edge that moves away from the corners (the folded edge 6) of the base body 1 as it goes upward. The removal depth and width of the non-material portions 8 are set and configured according to the dimensions and shape of the engagement recess 4 of the container body 2, which will be described later.
[0034] The container body 2 of this embodiment is made of a thin material made of synthetic resin such as polypropylene (PP), polystyrene (PS), polyethylene terephthalate (PET), etc., and is formed into a box-like shape that is open at the top and has a rectangular shape in plan view that is substantially the same as the outer shape of the base body 1 when unfolded, as shown in Figures 1 to 3. The shape of this container body 2 is not limited to this embodiment, and various shapes such as a hexagon, octagon, drum shape, gourd shape, circle, and variations thereof in plan view can be adopted, and it is also possible to easily prepare base bodies 1 of shapes that correspond to these various shapes of container bodies 2.
[0035] In addition, the container body 2 has a flange-like protrusion around the entire outer periphery, and this flange is integrally molded into a groove-like recessed shape facing upward, and this recessed flange is configured as an engaging recess 4 into which the thin-walled portion 3 of the base body 1 can be inserted and engaged.
[0036] Furthermore, this engagement recess 4 is formed in the shape of a square frame that is the same shape as the base body 1 (thin portion 3) in a plan view, and the container of this embodiment is completed by fitting the lower part of the container body 2 into the base body 1 and inserting and locking the thin portion 3 that exists around almost the entire circumference of the upper edge of the base body 1 into almost the entire circumference of the engagement recess 4. At this time, the container body 2 may be fixed to the base body 1 in an assembled state by applying an adhesive to the thin portion 3, for example.
[0037] Furthermore, when assembling the container body 2 to the base body 1, as described above, the corners of the base body 1 are the solid portions 8 where no thin portions 3 exist, and therefore the thin portions 3 are inserted and locked into the corners (four corners) of the container body 2 except for the engaging recesses 4, facilitating the assembling operation of the container body 2 to the base body 1. That is, in a container body 2 with engaging recesses 4 that is integrally molded from synthetic resin, the engaging recesses 4 at the corners must be rounded rather than right-angled in plan view to allow for ease of removal when demolded. However, if a thin portion 3 that is right-angled in plan view is inserted and locked into the rounded engaging recess 4 at the corner, the thin portion 3 is likely to come into contact with and interfere with the engaging recess 4 at the corner, causing insertion resistance and potentially hindering the assembling operation. However, in this embodiment, in which the corners of the base body 1 are the solid portions 8, such an obstacle does not arise.
[0038] Furthermore, the container body 2 is formed in a shape that allows multiple container bodies 2 to be stacked and nested. That is, the container of this embodiment is shipped with the base body 1 and the container body 2 separated, but in this case, multiple base bodies 1 folded into a strip shape and multiple stacked container bodies 2 can be transported and stored in a compact state.
[0039] The present invention is not limited to this embodiment, and the specific configuration of each component can be designed as appropriate. [Explanation of symbols]
[0040] 1 Base 2. Container body 3 Thin section 4 Engagement recess 5 Board materials / Paper materials 6 Folded Edge
Claims
1. The container is made of synthetic resin and is assembled into the base in a frame-like shape in plan view. The base body has a plate-shaped thin portion on an upper edge thereof, The container body has an engagement recess formed integrally with the outer periphery thereof, the engagement recess being recessed upward like a groove, and the container body is assembled to the base body by inserting and engaging a thin portion of the upper edge of the base body into the engagement recess while the container body is housed within the base body, The container is characterized in that the base body is made up of stacked plate materials, and the plate materials are stacked with their positions shifted vertically, so that the upper edge is formed as the thin portion equivalent to one plate material.
2. The base body has the thin portion provided around the entire upper edge thereof, 2. The container according to claim 1, wherein the container body has the engagement recesses formed on the entire outer periphery thereof.
3. 3. The container according to claim 2, wherein the thin-walled portion is provided on the entire periphery of the base body except for the corners of the upper edge.
4. The container according to any one of claims 1 to 3, characterized in that the base body is made of folded paper material that is folded in half so that the folded edge side becomes the bottom and the opposite folded edge side becomes the top, and the paper material is folded so that the position of the top folded edge is shifted up and down, so that the upper edge is configured as the thin portion equivalent to one sheet of paper material.
5. 5. The container according to claim 1, wherein the base body has a folded edge and is configured to be foldable into a flat state via the folded edge.
Citation Information
Patent Citations
Container
JP1983180118U
JP1987017384U
Plain container for receiving food
JP1998077032A
Packaging container
JP2002337860A
Food packaging containers
JP6632489B2