JP3588464B1 - Packaging container lid - Google Patents

Abstract

The present invention relates to a structure in which a frame attached to an upper peripheral flange of a container body having an open top and a lid which covers the frame are separately formed, and the frame and the lid are integrally fixed. .
A frame portion is formed by an upper surface portion that is in close contact with an upper surface of a container body and a vertical portion that is located on a side of an upper peripheral flange portion of the container body, and a flat lid body portion and the lid body portion are formed. A lid portion is formed by a ring-shaped peripheral portion extending downward from the outer edge, and the frame portion and the lid portion are separately molded of synthetic resin. A thin hinge portion that can be deformed following the opening and closing operation of the lid portion and a fixing portion fixed to the frame portion are integrally provided on the side of the peripheral edge portion of the lid portion, and the outer periphery of the upper surface portion of the frame portion is provided. An outer peripheral surface is formed by a step from a ring-shaped surface by a step portion, and the upper surface of the hinge portion and the frame portion when the fixing portion is fitted into a concave portion deeper than the outer peripheral surface formed on the upper surface portion of the frame portion. When the lid is fixed to the frame by the lock mechanism, the peripheral edge of the lid fits the inner surface with the step of the frame, The lower end surface of the peripheral portion is in close contact with the outer peripheral surface one step down and the upper surface of the hinge portion to seal the inside of the container body.
[Selection diagram] FIG.

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a lid attached to an upper peripheral flange of an open-topped packaging container body.
[0002]
[Prior art]
Conventionally, for a packaging container lid, for example, in the case of a miso container for food packaging or the like, an annular frame portion fitted into the upper opening of the container body and a lid portion for opening and closing the upper opening are simultaneously formed integrally using a synthetic resin. Was.
[0003]
When the frame and the lid are integrally formed as described above, a large die must be used. However, if the frame and the lid are formed separately as in Patent Document 1, the shape of the mold becomes smaller, and the molding can be performed by a small injection molding machine. Although a process of assembling is required, molding a frame and a lid separately has recently been performed, mainly for small-quantity multi-product production where the unit price is likely to increase.
[0004]
[Patent Document 1]
Japanese Patent No. 3373200
[0005]
[Problems to be solved by the invention]
In the case where the frame and the lid are integrally molded as described above, the shape of the mold for resin molding becomes large because the frame and the lid are connected to each other by the hinge and are arranged side by side, and the resin is injected. In addition to the fact that the shape of the cavities for performing the molding is complicated, it is not only difficult to design the mold, but also the actual injection molding process has a problem that the filling time of the resin is long and the productivity is low.
[0006]
In addition, since the frame is integrally formed, the frame and the lid have the same color. Normally, after the contents such as miso are stored in the container body, the opening is sealed with a film (cover) with printing. However, if the lid to cover there is opaque, the printing cannot be seen from the outside. The lid is made of a transparent or translucent resin so as to be transparent. As a result, the frame integrally formed with the lid is necessarily limited to transparent or translucent, which is not preferable as commercial value.
[0007]
For this reason, recently, the frame and the lid are separately formed as in Patent Document 1. And the frame and lid are fixed by one hinge and the other locking mechanism. However, there are many problems to be solved in the method of integrating the frame and the lid in the working process after molding. That is, the frame and the lid are Mold separately and later The structure to be integrated , It is necessary to have a mounting strength so that the frame and the lid do not come off during use, and it is difficult to firmly fix the lid to the frame by the upper surface of the frame and the hinge fixing part, which cannot be thickened. is there. Also, even if a structure that does not separate the frame and lid can be realized, there is an error in assembling the hinge part because it is not integral molding, and a gap is easily formed between the frame and the lid. Become. For this reason, the dimensions after molding are There is a problem in that even if the dimensions are such that they can be closely adhered to each other, sufficient adhesion cannot be obtained as an actual product, and sufficient sealing in the intended packaging container cannot be obtained.
[0008]
[Means for Solving the Problems and Functions / Effects]
In order to solve the above-mentioned problem, a packaging container lid of the present invention has a ring-shaped frame portion fitted into an upper portion of an open-topped packaging container body, and a lid portion attached to the frame portion, wherein the frame The part and the lid part are each separately molded of synthetic resin, and the frame part is formed on the upper surface part formed on the back surface with a plane in close contact with the upper surface of the packaging container body, and on the side of the upper peripheral flange part of the packaging container body. It consists of a vertical part that is located, On the outer periphery of the upper surface of the frame, an outer peripheral surface that is one step lower by a step from the ring-shaped surface is formed, The lid includes a flat lid main body and a ring-shaped peripheral edge extending downward from an outer edge of the lid main body. Constitution Have been. A thin hinge portion that can be deformed following the opening and closing operation of the lid portion is provided on the side of the peripheral portion of the lid portion, and this hinge portion is used to fix the lid portion to the frame portion via the hinge portion. A fixed part that is thicker than the hinge part is integrally provided. ,Previous The upper surface of the frame portion corresponds to the thickness and width of a fixing portion for fixing the lid portion to the frame portion. Concave Forming part The fixing portion fits into the concave portion to fix the lid portion to the frame portion. Further, a lock mechanism for attaching the lid portion to the frame portion is provided on a side opposite to the hinge portion, and the lid portion is hinged. When the cover is rotated and closed with respect to the frame through the portion, the lid and the frame are fixed by the lock mechanism, and at this time, the inner surface of the peripheral portion of the lid is While fitting with the stepped portion, the lower end surface of the peripheral portion of the lid portion is in close contact with the upper surface of the outer peripheral surface which is lowered by one step. Is configured.
[0009]
Further, At the lower end of the ring-shaped peripheral portion extending downward from the outer edge of the lid body portion on the opposite side of the hinge portion, the thickness is smaller than that of the peripheral portion and extends further downward continuously to the outer surface of the peripheral portion. A projecting piece is provided, and the thin piece of the projecting piece has a larger upper dimension connected to the peripheral edge side, a smaller lower dimension, and an inclined portion formed on the side of the projecting piece, and a vertical section of the frame portion. Forms a cavity from the side surface toward the inside, and forms a thin plate vertical portion that reduces the thickness of the outer peripheral surface of the frame portion, and the lower edge of the thin plate vertical portion is higher than the lower edge of the vertical portion. Formed at a position, the cavity has an inclined surface corresponding to the inclined portion of the side of the projecting piece, and the projecting piece of the peripheral edge portion fits into the space on the side of the vertical portion of the thin plate. And a projection provided on the projecting piece is engaged with a lower edge of the thin plate vertical portion to constitute the locking mechanism. When the projection is engaged with the lower edge of the thin vertical portion, and the inclined portion and the inclined surface is in contact .
[0010]
In injection molding with a mold, if the shape is complicated, the flow (filling speed) of the resin is long. On the other hand, if the shape is simple, the mold can be manufactured at low cost, and the molding time can be shortened. For this reason, by separately molding the frame and the lid as in the present invention, the shape is not complicated, so that the filling time of the resin can be shortened, which leads to the shortening of the molding time, and the resin molded product is reduced. Can increase the productivity during the production of
[0011]
Since the frame and the lid are separately molded, the frame and the lid can be made the same color by selecting a resin used for molding, or a combination of different colors from each other. Is also possible. That is, it is easy to color the frame part and / or the lid part by molding in advance with a synthetic resin containing a pigment, and especially the lid part is made transparent or translucent without a pigment, and the container In addition to making the print on the cover (film) that seals the contents visible from the outside, the frame is colored, for example, brown, gold, etc., so that the lid and the frame are the same color It is easy to give the novelty to the packaging container lid as a whole or to give it a sense of quality.
[0012]
Further, in the assembled structure of the frame portion and the lid portion after resin molding, a flat portion is formed on the back surface of the frame portion, and the packaging container body and the frame portion are configured so that the upper surface of the packaging container body is in close contact with this flat surface. To ensure the close contact. Further, a hinge portion of the lid portion is provided with a continuous fixing portion, and a deep concave portion corresponding to the thickness and width of the fixing portion of the lid portion is formed on the upper surface portion of the frame portion, and the fixing portion of the lid portion is formed by the concave portion. And a part of the hinge part following the fixing part is also fitted into the concave part, so that the upper surface of the hinge part in the concave part is almost flush with the outer peripheral surface one step lower than the surface of the frame part. Make up. According to this structure, in the fixing portion and the hinge portion, since the lower portion of the hinge portion and the side surface of the hinge portion can be substantially intimately adhered to the recess, the adhesion of the mounting portion of the lid portion can be ensured. Even if a dimensional error occurs due to deformation of the concave part when mounting and fixing it on the lid, the sealing between the thin hinge part of the lid and the concave part of the frame part is not affected at all. In this way, close contact is ensured even when the lid and the frame are attached.
[0013]
On the other hand, the hinge portion having a small thickness is formed from the peripheral portion of the lid portion toward the side thereof, and since this hinge portion is located at a predetermined distance from the tip of the peripheral portion, the end face of the peripheral portion is uniform. When the lid is placed over the frame fitted into the upper peripheral flange of the packaging container body, the distal end surface of the ring-shaped lid is formed flush with the lid. As a result, the surfaces of the outer peripheral surface and the hinge portion were firmly adhered to each other, and the inside of the packaging container could be securely sealed. For this reason, the upper surface of the upper peripheral flange of the packaging container closely adheres to the lower surface of the upper surface of the frame, securely adheres between the hinge and the recess of the frame, and furthermore, the outer peripheral surface of the frame and the hinge The top surface of the package is in close contact with the tip of the peripheral edge of the lid, so that it is possible to reliably maintain airtightness even during use with the film that seals the contents of the packaging container removed. It is no longer possible to reduce the storage period of the contents such as miso due to intrusion of bacteria and various bacteria, and drying of the air by circulating the air.
[0024]
Also, Although various types of configurations of this type of lock mechanism are conceivable, the lock mechanism of the embodiment includes a thin protruding piece that is continuous with the outer surface of the peripheral portion of the lid, and a cavity that reduces the thickness of the vertical portion of the frame portion. A thin plate vertical portion is formed, and a lower edge of the thin plate vertical portion is formed at a high position so that the lower edge of the thin plate vertical portion and the protrusion of the protrusion can be locked while the protruding pieces are fitted into the voids. Has become. In the lock mechanism of this embodiment, since a part of the peripheral portion of the lid portion is extended as a protruding piece, the tip of the peripheral portion without the protruding piece can form a continuous plane in a ring shape. Also, since the outer peripheral surface of the frame portion is formed in a ring shape above the thin plate vertical portion, the outer peripheral surface and the tip of the peripheral portion can come into contact with each other as in the other portions. The close contact between the contact portion, the peripheral edge portion, and the step portion can be ensured also in the lock mechanism portion, and the container / packaging body can be hermetically sealed.
[0025]
Further, as the lock mechanism, the lower edge of the thin plate vertical portion can be easily disengaged from the projection by pulling the lower end of the protruding piece, and the lid can be easily opened and closed during use. Further, since the lower end of the thin plate vertical portion is located at a position higher than the vertical portion, the length of the protruding piece can be set within the range of the vertical portion even when the lock portion is formed even in the locked state. Since the projecting piece of the lid portion extends below the frame portion in a state where the frame portion and the lid portion are locked, there is no play when the frame is placed on the table, and stacking becomes easy.
[0026]
Further, a thick peripheral portion is formed at a peripheral portion of the lid near the lock mechanism, and a thick vertical portion is formed at a vertical portion of the frame near the lock mechanism, and the projecting piece of the lid is thick. The thin vertical portion is formed in a thick peripheral portion, and the thin vertical portion is formed in a thick vertical portion, and is formed between the lower end of the thick peripheral portion provided with the projecting piece and the upper surface portion of the thick peripheral portion having the thin vertical portion of the frame portion. There is a close contact space. According to this embodiment, although the outer diameter of the lid and the frame is slightly increased by the thick vertical portion and the thick peripheral portion, the overall increase in the size can be small, and the packaging is performed with the lid covered. Even when a force is applied to the lid as when the containers are stacked, this force is applied to the lower end of the thick-walled peripheral part with the protruding pieces and the thin part of the frame as in the other parts of the lid and the frame. The upper part of the thick peripheral part having the vertical part was able to contact and withstand, and the force of the lid part could be reliably transmitted to the frame part.
[0027]
Further, the projecting piece provided on the peripheral portion of the lid portion has a larger size on the upper peripheral portion side and forms an inclined portion having a smaller size on the lower portion, and the space formed in the vertical portion of the frame portion has the above-mentioned shape. It is provided with an inclined surface corresponding to the inclined portion, and when the projection of the protruding piece is engaged with the lower edge of the thin plate vertical portion, the inclined portion and the inclined surface are configured to come into contact with each other. Even when a force is applied to the lid as in the case of stacking containers, this force causes the inclined portion to contact the inclined surface, and the locking mechanism causes the lower end of the peripheral portion of the lid to contact the outer peripheral surface of the frame portion. Even if the contact area is reduced, the force of the lid is reliably transmitted to the frame, and the lid is not locally deformed.
[0028]
Further, the upper peripheral flange of the packaging container body forms an outwardly projecting edge, and a vertical portion near the concave portion of the frame portion and a vertical portion adjacent to the thin plate vertical portion are inside the projecting edge. The inside of the vertical portion of the thin plate is brought into contact with the overhanging edge which is prevented by the convex portion, and the vertical portion of the thin plate is engaged with the projection while preventing deformation inward. It has become.
[0029]
Since the frame portion has a large ring shape and a large opening at the center for taking out miso and the like stored in a container, the frame portion made of synthetic resin is easily deformed. Then, when the locking structure is formed substantially in the thickness of the vertical portion by using the thin vertical portion as in the embodiment, the locking portion is easily deformed, the frame portion escapes and the locking portion is easily released, and the lid is removed. Function may not be obtained. In this embodiment, the upper peripheral flange portion of the packaging container body further forms an outwardly projecting edge, and the projecting edge is brought into contact with the inner surface of the vertical portion in a state where it is prevented from falling off by the ridge portion of the vertical portion, The deformation to the inside of the frame can be prevented, and the lid does not open during use even when the height of the projection is low.
[0030]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a perspective view of a frame 2 for covering a packaging container (for example, a food packaging container such as a miso container) of the present invention, and a lid 1 which is put on the frame 2 before being integrally assembled. I have. FIG. 2 is a sectional view showing a state in which the lid 1 is attached to the frame 2, and FIG. 3 is a sectional view showing a state in which the packaging container body 4 is covered with the frame 2 and the lid 1. Is shown.
[0031]
As shown in FIG. 1, the lid 1 and the frame 2 are formed by separate molds, respectively, and then integrated as shown in FIG. The lid 1 and the frame 2 are formed of a thermoplastic synthetic resin such as polypropylene or polyethylene, and the lid 1 is formed translucent (the color of the uncolored resin itself) using a resin containing no pigment. The part 2 may be formed to be translucent similarly to the lid part 1, but it may be formed to be colored by using a resin containing a pigment in order to give a higher quality and texture. As shown in FIG. 3, in a case where the packaging container lid of the present invention is attached to the container body 4, the container body 4 is usually filled with miso, which is an example of the contents, and then the peripheral flange on the upper part of the container body 4. In many cases, a sealing film for sealing the container is attached to 41, and the name, trademark, usage, and other display contents are often printed on the sealing film in advance. As described above, the lid 1 is formed to be translucent. This is so that the printed content on the sealing film can be read from above through the lid 1.
[0032]
The lid 1 is mainly composed of a lid main body 11 having a shape in which a round (arc-shaped part) is provided at a rectangular corner, and a peripheral edge 12 forming an upright surface over the entire periphery of the lid main body 11. The hinge 1 is integrally provided on one side of the peripheral part 12 of the lid part 1 with a hinge part 3 on the side of the peripheral part 12 and a fixed part 31 continuous with the hinge part 3. As shown in FIGS. 4 and 5, the hinge portion 3 is formed with a thin portion in the middle so that the hinge portion 3 can be deformed following the opening / closing operation of the lid portion 2. The lid 1 and the fixed part 31 are fixed to the part 2 so that the lid 1 and the fixed part 31 are rotatable by the hinge part 3 and can withstand long-term repeated rotation, so that the lid 1 can be opened and closed.
[0033]
The frame portion 2 has a ring shape so that the contents of the container body 4, for example, miso, can be taken out while being attached to the container body 4, and the outer shape is equal to the outer shape of the lid 1. A vertical portion 21 which is located on the side of the peripheral flange 41 of the container body 4 and fits outside the peripheral flange 41 while forming an upright surface on the outer periphery of the frame portion 2; And an upper surface portion 23 positioned so as to cover the upper portion of the container portion 4. As shown in FIG. 3, the lower surface of the upper surface portion 23 forms a flat surface and the upper surface of the peripheral flange portion 41 of the container body 4. Adhering.
[0034]
A concave portion 26 corresponding to the thickness and width of the fixed portion 31 is formed in a part of the upper surface portion 23 of the frame portion 2 for mounting the fixed portion 31 of the hinge portion 3. A step 22 is formed on the outer periphery of the upper surface 23 of the ring-shaped frame 2, and the outer peripheral surface 24 is formed on the outer periphery of the frame 2 at a position one step lower than the upper surface 23 by the step 22. Has formed.
[0035]
As shown in FIGS. 4 and 5, the concave portion 26 is provided stepwise below the upper surface portion 23 of the frame portion 2 by the thickness of the fixing portion 31, and this position is located below the outer peripheral surface 24. ing. When the fixing portion 31 is fitted into the concave portion 26, a part of the thin hinge portion 3 of the lid portion 1 is also fitted into the concave portion 26, and the upper surface of the hinge portion 3 in this portion is It is almost flush. The hinge 3 is formed so as to extend to the side of the peripheral edge 12 of the lid 1, so that the end face of the peripheral edge 12 forms a continuous ring-shaped plane. For this reason, when the lid 1 is rotated by the hinge 3 as described in detail in FIG. 6, the thin part in the middle of the hinge 3 is curved, and the inside of the peripheral edge 12 of the lid 1 is bent. The outer peripheral side of the fixed portion 31 continuous with the step portion 22 and the hinge portion 3 is in close contact with the outer peripheral surface 24 and the upper surface of the hinge portion 3 so that the end of the peripheral portion 12 can be in close contact with the container body. 4 can be sealed.
[0036]
A hole 32 is formed in the fixing portion 31 which is continuous with the hinge portion 3 which is curved when the lid portion 1 is opened and closed, and is inserted into the hole 32 in the concave portion 26 in which the fixing portion 31 is fitted. The protrusion 27 to be formed is formed toward the lid 1 located above. Then, when fixing the lid 1 to the frame 2, the projections 27 are aligned with the holes 32 and the fixing portions 31 are fitted into the recesses 26, and the tips of the projections 27 project upward from the holes 32. And the fixing portion 31 is firmly fixed to the concave portion 26. Since the ring-shaped peripheral portion 12 is formed on the lid portion 1, a sufficient space can be formed between the fixing portion 31 and the lid main body portion 11. It can be located between the fixing portion 31 and the lid main body 11 inward, and it is difficult to come off by increasing the length of the projection.
[0037]
In order to make it difficult for the protrusion 27 and the hole 32 to be disengaged from each other, it is an effective means to form the tapered shape in which the inner diameter of the lower part of the hole 32 to be fitted first with the protrusion 27 is increased. is there. In this way, in the state where the projection 27 and the hole 32 are fitted, the upper part of the hole 32 having a small inner diameter is fitted to the tight projection 27, and it is more difficult to come off. Also, as shown in FIGS. 4 and 5, it is effective means to form a hole 33 at the tip of the projection 27 and to increase the outer diameter of the projection 27 corresponding to the side of the hole 33. In this way, when trying to push the hole 32 into the protrusion 27, the large-diameter portion of the protrusion 27 made of synthetic resin is deformed so as to make the hole 33 smaller, and the hole 32 and the protrusion are deformed. 27 fits, so that the fixing portion 31 can be securely fixed in the concave portion 26 of the frame portion 2. In addition, when a force is applied such that the fixing portion 31 is detached from the concave portion 26, since the large-diameter portion is located at the tip end of the projection 27 protruding from the hole 32, it does not easily come off.
[0038]
As shown in FIGS. 3 and 6, the upper surface 23 of the frame 2 is formed to be wider than the opening formed in the upper part of the container body 4. In addition, when the frame portion 2 is injection-molded, it is generally understood that the thickness of the wide upper surface portion 23 may be the same as the thickness of the vertical portion 21 extending downward from the outer edge. The upper portion 23 is formed to be thicker than the vertical portion 21. For this reason, even if the frame part 2 is made by injection molding of a synthetic resin, the ring-shaped thick upper surface part 23 is hardly deformed, and can be securely adhered to the peripheral flange part 41 on the upper part of the container body 4. become. Further, if the thickness of the upper surface portion 23 of the frame portion 2 can be increased, the concave portion 26 for fixing the lid portion 1 to the frame portion 2 can be formed deep, and the fixing portion 31 can be formed by the concave portion 26 of the frame portion 2. When the upper surface of the upper surface portion 23 and the upper surface of the fixing portion 31 are made continuous with each other in a state where the fixing portion 31 is fitted, the thickness of the fixing portion 31 can be increased. The fixed portion 31 is no longer bent like the hinge portion 3.
[0039]
Further, since the frame portion 2 is not only located inside the upper opening of the container body 4 but also has a large thickness, the spatula for scooping the contents such as miso from the inside of the container body 4 is easily handled. Therefore, in the present invention, the inclined surface 36 is formed so that the inner edge side of the upper surface portion 23 of the frame portion 2 is lower. Similarly, the fixed portion 31 of the lid portion 1 is also formed with a fixed portion inclined surface 37 which is continuous with the inclined surface 36 in a state fitted in the concave portion 26 of the upper surface portion 23. In this way, the inner edge of the upper surface portion 23 of the frame portion 2 is thin at a low position, and the thickness of the upper surface portion 23 of the frame portion 2 affects the operation of scooping out the contents from the container body 4. lost.
[0040]
As shown in FIGS. 3 and 6, a step 16 of the lid is formed on the outer edge of the lid body 11 of the lid 1, and the mounting surface 17 is located at a position one step lower by the lid step 16. Is formed. Since the outer dimension of the lid step 16 is set smaller than the inner dimension of the vertical portion 21 of the frame 2, as shown in FIGS. The lower end of the vertical portion 21 can be placed and stacked. Since the vertical portion 21 is stopped from moving left and right by the lid step portion 16, a lot of stacking can be performed with the lid portion 1 covered on the frame portion 2, and after the miso or the like is put in the container body 4. In the step, the frame portions 2 with the stacked lids can be taken out and sequentially put on the container body 4.
[0041]
As shown in FIG. 3, the shape of the lid main body 11 of the lid 1 matches the shape of the lower part of the container main body 4 and is formed in a fittable shape 38. When the shape of the lid 1 is adjusted to the shape of the container body 4 in this manner, the frame 2 is fitted to the upper part of the container body 4 like the stack of the lid 1 and the frame 2. Thus, a large number of packaging containers can be stacked, and the storage space at the time of transportation or at a sales floor can be reduced. In the embodiment shown in the figures, the lid 1 has an upper fitting shape, but may have a fitting shape in which the bottom of the container body 4 is made to be concave.
[0042]
On the other side of the lid 1 opposite to the side where the hinge 3 and the fixing portion 31 are located, a protruding piece 13 extending downward from the peripheral edge 12 of the outer edge of the lid 1 is attached. The protruding piece 13 is formed to have a thickness smaller than the thickness of the peripheral portion 12, and can be moved slightly by moving the tip by hand. On the other hand, the vertical portion 21 of the frame portion 2 is formed with a cavity 28 slightly depressed inward, and the vertical portion 21 of the cavity 28 is a thin plate vertical having a thin outer peripheral surface. It is the part 29. The lower edge of the thin plate vertical portion 29 is formed at a position higher than the lower edge of the vertical portion 21, and the protruding piece 13 fits into the space 28 when the lid 1 is turned and closed. At the same time, the projection 14 provided on the protruding piece 13 is engaged with the lower edge of the thin plate vertical portion 29.
[0043]
Therefore, when the lid 1 rotates toward the frame 2, the projection 14 of the projecting piece 13 locks to the lower edge of the thin plate vertical portion 29, and the lid 1 cannot normally be opened, The state in which the lid is securely held can be maintained. Since the protruding piece 13 can be slightly moved at its tip, when the tip of the protruding piece 13 is pulled, the projection 14 of the protruding piece 13 is unlocked from the lower edge of the thin plate vertical portion 29. Then, the lid 1 that has been closed can be opened.
[0044]
Further, since this lock mechanism can be formed in substantially the same thickness as the vertical portion 21 and the peripheral portion 12, the planar shape is almost the same as the frame portion 2 and the lid portion 1, and the frame portion 2 is attached to the packaging container body 4. In addition, since the storage area at the time of packing can be reduced, and it does not protrude from the frame part 2 or the lid part 1, it becomes very easy to handle without disturbing the carrying.
[0045]
In addition, the thickness of the projecting piece 13 is smaller than the thickness of the peripheral portion 12, and the thickness of the thin vertical portion 29 is smaller than the thickness of the vertical portion 21. The outer peripheral surface 24 that is continuous with the vertical portion 21 in the thin vertical portion 29 is continuously formed in a ring shape, and the end portion of the peripheral portion 12 and the frame portion are formed. The outer peripheral surface 24 of the projection 2 abuts even when the projection 14 of the protruding piece 13 is locked, so that close contact can be reliably maintained.
[0046]
Further, in the embodiment shown in FIG. 1, a thick peripheral portion 34 is formed on the peripheral portion 12 near the lock mechanism, and a thick vertical portion 35 is formed on the vertical portion 21 near the lock mechanism. If the protruding piece 13 is formed on the thick peripheral portion 34 and the thin plate vertical portion 29 is formed on the thick vertical portion 35, the end of the ring-shaped peripheral portion 12 abutting on the outer peripheral surface 24 even at the protruding piece 13. Can be formed thick, and even in the portion of the thin vertical portion 29, the outer peripheral surface 24 abutting on the end of the peripheral portion 12 can be formed thick, so that the frame portion 2 made of synthetic resin is slightly deformed by applying a force. Also, the close contact between the end of the peripheral portion 12 and the outer peripheral surface 24 of the frame 2 can be maintained at all times.
[0047]
In the embodiment shown in FIG. 1, the projecting piece 13 formed on the peripheral edge 12 of the lid 1 has a large dimension on the peripheral edge 12 side, and has a smaller dimension at the lower end, which is the tip, and is inclined to the side of the projecting piece 13. The part 15 is formed. An inclined surface 30 is formed in a space 28 of the vertical portion 21 corresponding to the projecting piece 13 so as to contact the inclined portion 15, and the projection 14 of the projecting piece 13 is located below the thin plate vertical portion 29. The inclined portion 15 and the inclined surface 30 are in close contact with each other when locked to the edge. Therefore, even if a force is applied to the lid 1, the force is transmitted from the inclined portion 15 to the inclined surface 30, and the deformation of the frame 2 is less likely to occur.
[0048]
As shown in FIG. 7, a peripheral edge 41 formed on the upper portion of the packaging container body 4 is provided with a protruding edge 42 toward the inside of the vertical portion 21 of the frame portion 2. In the lower vertical portion 21, a ridge 25 is formed at least near the concave portion 26 of the frame portion 2 and near the thin plate vertical portion 29. For this reason, when the thin plate vertical portion 29 is made of a synthetic resin molded product, the engagement between the lower edge of the thin plate vertical portion 29 and the projection 14 may be released by a slight force applied to the frame portion 2. In this case, even if the thin plate vertical portion 29 is to be deformed inward, the overhanging edge 42 reinforces the frame portion 2 to increase the rigidity. Further, even if the height of the projection 14 formed on the protruding piece 13 is reduced, the engagement with the lower edge of the thin plate vertical portion is not released at least during use.
[0049]
On the other hand, a spatula 5 as shown in FIG. The spatula 5 includes a hand-held portion 52, a rake portion 53, and a cut portion 54, and can be used when the user scoops the contents, for example, miso. The cut portion 54 is used when cutting a film (cover) for sealing contents such as miso housed in the container body 4 along the opening of the container body 4. The spatula 5 has a hole 51. For example, holes 51 are provided at two places near both ends of the spatula 5 (one for each of the hand-held part 52 and the rake part 53). Protrusions 18 corresponding to the holes 51 are provided near the center of the cover 1 so that the spatula 5 can be detachably fixed to the inside of the lid 1 as shown in FIG. The shape of the tip of the rake portion 53 of the spatula 5 is semicircular in FIG. 10A, but in addition to the semicircular shape as shown in FIG. If the rake portion 53 'has a shape corresponding to the partial cross-sectional shape, the remaining portion of the contents can be scooped cleanly from the bottom.
[Brief description of the drawings]
FIG. 1 is a perspective view of a lid and a frame.
FIG. 2 is a sectional view showing a state in which a lid is attached to a frame.
FIG. 3 is a sectional view showing a state in which a lid is closed and a frame is attached to a container body.
FIG. 4 is a perspective view showing a relationship between a concave portion of a frame portion and a fixing portion of a lid portion.
FIG. 5 is a cross-sectional view illustrating a relationship between a concave portion of a frame portion and a fixing portion of a lid.
FIG. 6 is a cross-sectional view of the hinge portion with the lid closed.
FIG. 7 is a sectional view of an engagement portion of the lock mechanism.
FIG. 8 is a front view of a state in which a lid portion is stacked on a frame portion.
FIG. 9 is a sectional view of a main part showing details of a stacking unit in FIG. 8;
FIG. 10 is a perspective view of a spatula.
FIG. 11 is a perspective view showing a state where a spatula is attached to a lid portion.
[Explanation of symbols]
1 Lid
2 Frame
3 Hinge
4 Container body
5 spatula
11 Lid body
12 Perimeter
13 Projection piece
14 protrusion
15 Inclined part
16 steps
17 Mounting surface
21 Vertical part
22 steps
23 Top surface
24 Outer surface
25 ridges
26 recess
27 Projection
28 void
29 Thin plate vertical part
30 slope
31 Fixed part
32 holes
33 holes
34 Thick perimeter
35 Thick vertical section
36 slope
37 Fixed part slope
41 Surrounding collar
42 Overhanging edge

Claims (3)

A ring-shaped frame fitted into the upper part of the top open packaging container body, and a lid attached to the frame, the frame and the lid are each separately molded of synthetic resin,
The frame portion is composed of an upper surface portion formed on the back surface with a flat surface in close contact with the upper surface of the packaging container body, and a vertical portion located on the side of the upper peripheral flange portion of the packaging container body,
On the outer periphery of the upper surface of the frame, an outer peripheral surface that is one step lower by a step from the ring-shaped surface is formed,
The lid portion is composed of a flat lid body portion and a ring-shaped peripheral portion extending downward from an outer edge of the lid body portion,
A thin hinge portion which can be deformed following the opening and closing operation of the lid portion is provided on a side of a peripheral portion of the lid portion, and the hinge portion is fixed to the frame portion via the hinge portion. With a fixed part formed thicker than the part,
A concave portion corresponding to the thickness and width of a fixing portion for fixing the lid portion to the frame portion is formed on the upper surface portion of the frame portion, and the fixing portion fits into the concave portion to fix the lid portion. Fixed to the frame,
Further, a lock mechanism for attaching the lid to the frame is provided on the opposite side of the hinge,
When the lid is closed by rotating with respect to the frame via a hinge, the lid and the frame are fixed by the lock mechanism,
At the time of this fixation, while the inner surface of the peripheral portion of the lid portion is fitted with the step portion of the frame portion, the lower end surface of the peripheral portion of the lid portion is in close contact with the upper surface of the outer peripheral surface one step lower,
At the lower end of the ring-shaped peripheral portion extending downward from the outer edge of the lid body portion on the opposite side of the hinge portion, the thickness is smaller than the thickness of the peripheral portion, and is further downwardly continuous with the outer surface of the peripheral portion. Provide a projecting piece that extends,
The projecting piece of the thin plate thickness has a larger upper part connected to the peripheral edge side, a smaller lower part dimension, and an inclined part is formed on a side part of the projecting piece,
In the vertical portion of the frame portion, while forming a void inward from the side, forming a thin plate vertical portion to reduce the thickness of the outer peripheral surface of the frame portion,
The lower edge of the thin plate vertical portion is formed at a position higher than the lower edge of the vertical portion,
The cavity has an inclined surface corresponding to an inclined portion on a side of the projecting piece,
The projecting piece of the peripheral portion is fitted into a space on the side of the thin plate vertical portion, and the projection provided on the projecting piece is locked to the lower edge of the thin plate vertical portion to constitute the locking mechanism,
The locking mechanism is characterized in that the inclined portion and the inclined surface are in contact with each other when the projection of the projecting piece is engaged with the lower edge of the thin plate vertical portion. A thick peripheral portion is formed at a peripheral portion of the lid portion near the lock mechanism, and a thick vertical portion is formed at a vertical portion of the frame portion near the lock mechanism,
The projecting piece of the lid portion is formed at a thick peripheral portion, the thin plate vertical portion is formed at a thick vertical portion,
2. The packaging container lid according to claim 1, wherein a close contact space is secured between a lower end of the thick peripheral portion provided with the projecting piece and an upper surface portion of the thick peripheral portion having the thin plate vertical portion of the frame portion. The upper peripheral flange portion of the packaging container body forms an outwardly projecting edge, and a vertical portion near the concave portion of the frame portion and a vertical portion adjacent to the thin plate vertical portion project inward from the projecting edge. Forming a protruding ridge portion, wherein the inside of the thin plate vertical portion is brought into contact with the overhanging edge which is retained by the ridge portion, and the thin plate vertical portion is locked with the projection while preventing inward deformation. The packaging container lid according to claim 1 or 2, wherein:

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