JP2022030418A - Lid for packaging container and packaging container - Google Patents

Abstract

To provide a lid that is unlikely to come off and can be mated with light force, as well as a packaging container.SOLUTION: A lid 100 of a packaging container 300 includes a top surface 110 and a lid side mating portion 150 that can be mated with a container side mating portion 250 of a container body 200 on the outside of the top surface 110. The lid side mating portion 150 includes a lid side engaging portion 153 that can be engaged with a portion of the container side mating portion 250 of the container body 200. A lower end of the lid side engaging portion 153 is provided with a lid side inclined surface 170 that is inclined relatively larger toward a vertical axis Y with respect to the top surface 110 than a horizontal axis X with respect to the top surface 110.SELECTED DRAWING: Figure 3

Description

The present invention relates to a lid of a packaging container and a packaging container provided with a lid and a container body.

Conventionally, packaging containers including a container body for storing foods such as prepared foods and rice and a lid body that can be fitted to the container body have been used in supermarkets, convenience stores, and the like.

For example, the packaging container of Patent Document 1 is a packaging container provided with a container body and a lid, and by covering the container body with the lid and pushing it down to the container body, the lid-side fitting portion of the lid can be formed. , Fits to the container side fitting part of the container body. Further, in order to prevent the lid and the container body from being inadvertently disengaged, the lid side fitting portion is a lid side engaging portion that can be engaged with a part of the container side fitting portion of the container body, so-called. , Undercut is provided. However, in order to fit the lid to the container body so that the engagement portion on the lid side gets over a part of the fitting portion on the container side, it is necessary to press the lid downward with a certain force.

Patent No. 3814859

Therefore, in view of the above problems, the present invention provides a lid that does not easily come off and can be fitted with a light force, and a packaging container.

In order to solve the above problems, the lid of the packaging container according to claim 1 of the present invention has a top surface and a lid side that can be fitted to the container side fitting portion of the container body on the outside of the top surface. A lid of a packaging container provided with a fitting portion, wherein the lid-side fitting portion includes a lid-side engaging portion that can be engaged with a part of the container-side fitting portion of the container body. It is characterized in that a lid-side inclined surface is provided on the lower end side of the lid-side engaging portion so as to be relatively greatly inclined toward the vertical axis with respect to the top surface rather than the horizontal axis with respect to the top surface.

According to the above characteristics, the fitting between the lid-side fitting portion and the container-side fitting portion is less likely to come off due to the lid-side engaging portion. On the other hand, when the lid is pressed downward, the lid-side inclined surface continuous to the lower end side of the lid-side engaging portion can slide on a part of the upper end side of the container-side fitting portion. Therefore, the inclined surface on the lid side serves as a guide surface, facilitating fitting between the fitting portion on the lid side and the fitting portion on the container side. In particular, since the inclined surface on the lid side is inclined relatively larger toward the vertical axis than the horizontal axis with respect to the top surface, the inclined surface on the lid side abuts on a part of the upper end side of the container side fitting portion. When you do, it becomes more slippery downwards. As a result, when the lid is pressed downward, the lid-side inclined surface smoothly slides downward on a part of the upper end side of the container-side fitting portion, and is on the upper end side of the lid-side inclined surface. The fitting portion on the lid side and the fitting portion on the container side are easily fitted. Further, since the inclined surface on the lid side slides smoothly downward, the lid can be fitted to the container body even if the lid is pressed downward with a lighter force. Since the lid can be fitted to the container body with a lighter force, the work efficiency is improved and the burden on the operator is reduced.

Further, the packaging container according to claim 2 of the present invention includes a container body having a container-side fitting portion and a lid having a lid-side fitting portion that can be fitted to the container-side fitting portion. The container-side fitting portion is a container-side engaging portion that can be engaged with a part of the lid-side fitting portion, and the container-side engaging portion is inclined toward the upper end side of the container-side engaging portion. The lid side fitting portion is provided with a surface, and the lid side engaging portion is provided with a lid side engaging portion that can be engaged with a part of the container side fitting portion, and a lid side inclined surface is provided on the lower end side of the lid side engaging portion. In a state where the lid is placed on the container body and the lid-side fitting portion is fitted to the container-side fitting portion, the container-side inclined surface and the lid-side inclined surface are in contact with each other. It is characterized by having a portion that does not come into contact with the container.

According to the above characteristics, since the lid-side inclined surface and the container-side inclined surface are provided with a portion that abuts against each other and a portion that does not abut against each other, the contact area between the lid-side inclined surface and the container-side inclined surface is reduced and the frictional resistance is reduced. The lid side inclined surface becomes more slippery downward when it comes into contact with the container side inclined surface. As a result, when the lid is pressed downward, the inclined surface on the lid side slides more smoothly downward on the inclined surface on the container side, and becomes the fitting portion on the lid side on the upper end side of the inclined surface on the lid side. The fitting portion on the container side is more easily fitted. Further, since the inclined surface on the lid side slides smoothly downward, the lid can be fitted to the container body even if the lid is pressed downward with a lighter force.

Further, the packaging container according to claim 3 of the present invention is characterized in that the surface of the container-side inclined surface or the lid-side inclined surface is formed in an uneven shape.

According to the above characteristics, the concave and / or convex reduces the contact area between the inclined surface on the lid side and the inclined surface on the container side, so that the frictional resistance can be reduced more reliably.

The lid body and the packaging container of the present invention are hard to come off and can be fitted with a light force.

(A) is a plan view of the lid body of the present invention, and (b) is a side view of the lid body of the present invention. (A) is an AA end view of FIG. 1 (a), (b) is an enlarged side view of the periphery of a corner portion of the lid, and (c) is a BB end view of FIG. 1 (a). (Or, the CC end view of FIG. 2B). (A) is an enlarged end view of the periphery of the lid-side fitting portion of FIG. 2 (a), and (b) is an enlarged end-view of the periphery of the lid-side fitting portion of FIG. 2 (c). (A) is a plan view of the container body of the present invention, and (b) is a side view of the container body. (A) is a DD end view of FIG. 4 (a), and (b) is an EE end view of FIG. 4 (a). (A) is a plan view of the packaging container before the lid is fitted to the container body, and (b) is a side view of the packaging container. (A) is an FF end view of FIG. 6 (a), and (b) is a GG end view of FIG. 6 (a). (A) is an end view of the FF end view of FIG. 6 (a) in a state where the lid is fitted to the container body, and (b) is an end view of GG of FIG. 6 (a). , It is an end view of the state where the lid body is fitted to the container body.

100 Closure 110 Top surface 150 Closure side fitting part 153 Closure side engaging part 170 Closure side inclined surface 200 Container body 250 Container side fitting part 300 Packaging container X Horizontal axis Y Vertical axis

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in this specification, "upper" means an upward direction in a vertical direction when it is placed on a horizontal plane with the opening surface of the container body of the packaging container facing up, and "downward". Is the downward direction in the vertical direction. Further, in the fitting of the lid body and the container body of the present invention, as described above, by covering the container body with the lid body and pushing it down to the container body, the fitting portion on the lid side of the lid body becomes the container of the container body. It is to be fitted to the side fitting portion, and the lid side fitting portion is provided with a lid side engaging portion, so-called undercut, which can be engaged with a part of the container side fitting portion of the container body. ing.

First, FIGS. 1, 2, and 3 show the lid 100 of the present invention. 1 (a) is a plan view of the lid body 100, FIG. 1 (b) is a side view of the lid body 100, and FIG. 2 (a) is an end view of AA of FIG. 1 (a), FIG. (B) is an enlarged side view of the periphery of the corner portion of the lid 100, and FIG. 2 (c) is a BB end view of FIG. 1 (a) (or a CC end view of FIG. 2 (b)). 3 (a), FIG. 3 (a) is an enlarged end view of the periphery of the lid side fitting portion 150 of FIG. 2 (a), and FIG. 3 (b) is an enlarged view of the periphery of the lid side fitting portion 150 of FIG. 2 (c). It is an end view.

As shown in FIGS. 1 and 2, the lid 100 has a deep dish shape that opens downward, and has a flat top surface 110 having a substantially rectangular shape in a plan view and an outer peripheral edge 111 of the top surface 110 that is directed diagonally downward. A continuous side wall 120, a flange portion 130 extending outward from the side wall 120, a skirt portion 140 extending downward from the flange portion 130, and a lid-side fitting portion 150 provided in a part of the skirt portion 140. And a flat edge portion 160 extending laterally from the lower end of the skirt portion 140. The side wall 120, the flange 130, the skirt 140, and the edge 160 are continuously provided over the entire circumference of the lid 100 in the circumferential direction. A groove 131 extending linearly is provided between the side wall 120 and the flange 130, and when the lid 100 is fitted to the container body 200, the lid side fitting portion 150 starts from the groove 131. The whole is slightly elastically deformed to make it easier to fit.

Further, the lid-side fitting portion 150 is partially provided in the substantially center of the skirt portion 140 on the long side of the lid 100 and the skirt portions 140 at the four corners of the lid 100, respectively. The lid side fitting portion 150 may be provided continuously or intermittently at any position of the skirt portion 140, such as providing the lid side fitting portion 150 on the entire circumference of the lid 100 in the circumferential direction. can. Further, the lid 100 has a substantially rectangular shape in a plan view, but is not limited to this, and may have any shape such as a substantially polygonal shape in a plan view or a substantially circular shape in a plan view.

Further, as shown in FIG. 3A, the lid-side fitting portion 150 provided below the flange portion 130 is configured to fit into the container-side fitting portion 250 of the container body 200, which will be described later. There is. Specifically, the lid-side fitting portion 150 has an upper end 151 that extends diagonally downward from the flange portion 130, a side end 152 that is continuous with the upper end 151, and a lid-side engagement that protrudes inward from the side end 152. It is provided with a joint portion 153. The lid-side engaging portion 153 is configured to engage with a part of the container-side fitting portion 250 of the container body 200, which will be described later, and is a so-called undercut portion. Further, the lower end of the lid side engaging portion 153 is provided with a lid side inclined surface 170 inclined outward. The inner surface 172 of the lid-side inclined surface 170 is a flat inclined surface, the upper end 174 of the lid-side inclined surface 170 is continuous with the lid-side engaging portion 153, and the lower end 173 is continuous with the edge portion 160. There is. The lid-side inclined surface 170 is directly continuous with the lower end side of the lid-side engaging portion 153, but is not limited to this, and as will be described later, the lid-side inclined surface 170 serves as a guide surface. If the fitting portion 150 on the lid side and the fitting portion 250 on the container side can be easily fitted, a configuration such as another surface portion is provided between the inclined surface 170 on the lid side and the engaging portion 153 on the lid side. The inclined surface 170 on the lid side may be indirectly continuous with the lower end side of the engagement portion 153 on the lid side. However, in order for the lid-side inclined surface 170 to serve as a guide surface, a part of the lid-side inclined surface 170 is located directly below the lid-side engaging portion 153, that is, downward along the vertical axis Y. It needs to be the inclined surface closest to the lid side engaging portion 153. Alternatively, in the lid-side inclined surface 170, when the lid-side fitting portion 150 and the container-side fitting portion 250 are fitted, the lid-side engaging portion 153 is a part of the container-side fitting portion 250 (for example, the container). Immediately before getting over the side engaging portion 253), it is necessary to have an inclined surface that comes into contact with a part of the container side fitting portion 250.

The lid-side inclined surface 170 is inclined to be relatively larger toward the vertical axis Y than the horizontal axis X, and the angle α between the lid-side inclined surface 170 and the horizontal axis X is the lid-side inclined surface. It is larger than the angle β between 170 and the vertical axis Y (α> β). The horizontal axis X is an axis extending in a direction along the horizontal plane when the lid 100 is placed on the horizontal plane, and the vertical axis Y is an axis extending in a direction (vertical direction) intersecting the horizontal plane at a right angle. .. Further, the top surface 110 is a substantially flat surface, and when the lid 100 is placed on a horizontal plane, the top surface 110 becomes a surface portion that extends to a substantially horizontal plane. Therefore, the horizontal axis X is an axis extending horizontally with respect to the top surface, and the vertical axis Y is an axis extending perpendicular to the top surface.

Further, in the lid-side inclined surface 170 shown in FIG. 3, α is 60 degrees and β is 30 degrees, but the present invention is not limited to this, and α can be any angle between 46 degrees and 80 degrees. If (46 ° ≤ α ≤ 80 °), it can be changed as appropriate. If α is less than 46 degrees, the lid-side inclined surface 170 becomes close to the horizontal axis X. Therefore, as described later, when the lid 100 is fitted to the container body 200, the lid-side inclined surface 170 and the lid-side inclined surface 170 are used. The frictional resistance with the container-side inclined surface 270 becomes large, and the force required for fitting becomes large. Further, when α exceeds 80 degrees, the inclined surface 170 on the lid side becomes nearly vertical. Therefore, when the lids 100 are stacked and stored, the convex portion 171 of the upper lid 100 and the lower lid 100 are stored. The upper end 151 of the lid cannot be firmly in contact with the lid 100, which makes it difficult to stably stack the lids 100. Therefore, if α is between 46 degrees and 80 degrees (46 ° ≤ α ≤ 80 °), the lid 100 can be fitted to the container body 200 with a light force and the lid 100 is stable, as will be described later. It is possible to stack them together.

In the lid-side inclined surface 170 shown in FIG. 3A, the surface 172 of the lid-side inclined surface 170 is inclined more toward the vertical axis Y than the horizontal axis X, and the lid-side inclined surface is inclined. The angle α between the surface 172 of 170 and the horizontal axis X is an arbitrary angle (46 ° ≦ α ≦ 80 °) between 46 degrees and 80 degrees, but is not limited thereto. For example, as shown in FIG. 3B, when the lid-side inclined surface 170 includes the convex portion 171 the convex portion 171 of the lid-side inclined surface 170 is relative to the vertical axis Y with respect to the horizontal axis X. The angle α'between the convex portion 171 of the lid side inclined surface 170 and the horizontal axis X is from the angle β'between the convex portion 171 of the lid side inclined surface 170 and the vertical axis Y. Is also getting bigger (α'> β'). Then, α'is 60 degrees and β'is 30 degrees. Further, when the convex portion 171 of the lid-side inclined surface 170 is inclined to be relatively larger toward the vertical axis Y than the horizontal axis X, the surface 172 of the lid-side inclined surface 170 is more inclined than the horizontal axis X. It does not have to be tilted relatively large with respect to the vertical axis Y, for example, the angle α may be 45 degrees. Further, the angle α'of the convex portion 171 of the lid side inclined surface 170 is not limited to 60 degrees, but the angle α'between the convex portion 171 of the lid side inclined surface 170 and the horizontal axis X is not limited to this. It may be any angle between 46 degrees and 80 degrees (46 ° ≤ α'≤ 80 °).

Further, as shown in FIGS. 2 (b) and 3 (b), the lid-side inclined surface 170 of some of the lid-side fitting portions 150 is provided with a convex portion 171 projecting inward, and the lid is provided. The surface 172 of the body-side inclined surface 170 is uneven. Specifically, by providing a plurality of convex portions 171 protruding linearly in the vertical direction on the surface 172, the surface 172 is formed in an uneven shape by a portion where the convex portion 171 is provided and a portion where the convex portion 171 is not provided. ing. The convex portion 171 is provided only on the lid side inclined surface 170 provided at a part of the corner portion of the lid 100, but the present invention is not limited to this, and all the lid sides provided on the lid 100 are provided. It may be provided on the inclined surface 170.

Next, FIGS. 4 and 5 show the container body 200 covered by the lid 100 of the present invention. 4 (a) is a plan view of the container body 200, FIG. 4 (b) is a side view of the container body 200, and FIG. 5 (a) is a DD end view of FIG. 4 (a), FIG. (B) is an end view of EE of FIG. 4 (a).

As shown in FIGS. 4 and 5, the container body 200 has a shallow dish shape that opens upward, and bulges downward at a flat bottom wall 210 having a substantially rectangular shape in a plan view and an outer peripheral portion 211 of the bottom wall 210. The leg portion 212 is provided. The bottom wall 210 is provided with a plurality of partitions 213 protruding upward from the bottom wall 210 in parallel with each other, and the space partitioned by the partitions 213 can accommodate foods such as sushi rolls. Further, a side wall 220 formed so as to rise from the outer peripheral 211 of the bottom wall 210, a flange portion 230 extending outward from the side wall 220, a skirt portion 240 extending downward from the flange portion 230, and a skirt portion 240. It is provided with a container-side fitting portion 250 provided in a part of the skirt portion 240 and a flat edge portion 260 extending laterally from the lower end of the skirt portion 240. The side wall 220, the flange 230, the skirt 240, and the edge 260 are continuously provided over the entire circumference of the container body 200 in the circumferential direction.

The container-side fitting portion 250 is partially provided in the substantially center of the skirt portion 240 on the long side of the container body 200 and in the skirt portions 240 at the four corners of the container body 200, respectively. The container-side fitting portion 250 may be provided continuously or intermittently at any position of the skirt portion 240, such as providing the container-side fitting portion 250 on the entire circumference of the container body 200 in the circumferential direction. can. Further, the container body 200 has a substantially rectangular shape in a plan view, but is not limited to this, and may have an arbitrary shape such as a substantially polygonal shape in a plan view or a substantially circular shape in a plan view.

Further, as shown in FIG. 5A, the container-side fitting portion 250 provided below the flange portion 230 is configured to fit with the lid-side fitting portion 150 of the lid body 100. Specifically, the container-side fitting portion 250 has a lower end 251 extending diagonally upward from the edge portion 260, a side end 252 continuous with the lower end 251 and a container-side engagement portion protruding outward from the side end 252. It is provided with a joint portion 253. The container-side engaging portion 253 is configured to engage with the lid-side engaging portion 153 of the lid-side fitting portion 150 of the lid-body 100, which will be described later, and is a so-called undercut portion. Further, the upper end of the container-side engaging portion 253 is provided with a container-side inclined surface 270 inclined from the flange portion 230 toward the container-side engaging portion 253. The surface 272 of the container-side inclined surface 270 is a flat inclined surface. The container-side inclined surface 270 is directly continuous with the upper end side of the container-side engaging portion 253, but is not limited to this, and as will be described later, the lid-side inclined surface 170 is on the container-side inclined surface 270. If it is possible to slide downward and facilitate the fitting between the lid-side fitting portion 150 and the container-side fitting portion 250, another surface portion between the container-side inclined surface 270 and the container-side engaging portion 253. The container-side inclined surface 270 may be indirectly continuous with the upper end side of the container-side engaging portion 253. However, in order to facilitate fitting between the lid-side fitting portion 150 and the container-side fitting portion 250, a part of the container-side inclined surface 270 is directly above the container-side engaging portion 253, that is, a vertical axis. It needs to be an inclined surface located upward along the container side and closest to the container-side engaging portion 253. Alternatively, in the container-side inclined surface 270, when the lid-side fitting portion 150 and the container-side fitting portion 250 are fitted, the container-side engaging portion 253 becomes a part of the lid-side fitting portion 150 (for example, the lid). Immediately before getting over the body-side engaging portion 153), it is necessary to have an inclined surface that comes into contact with a part of the lid-side fitting portion 150.

The lid body 100 and the container body 200 were sheet-molded (for example, vacuum forming, pressure forming, hot plate forming) using a sheet-like material having a thickness of about 0.1 mm to 1.00 mm. For example, the material of the lid 100 and the container body 200 is not limited to polystyrene, polypropylene, polystyrene, A-PET, polylactic acid, and synthetic resin obtained by biaxially stretching these, but also paper and metal. Can be used.

Next, the packaging container 300 in which the lid 100 of the present invention is fitted to the container body 200 will be described with reference to FIGS. 6, 7, and 8. 6 (a) is a plan view of the packaging container 300 before the lid 100 is fitted to the container body 200, and FIG. 6 (b) is a side view of the packaging container 300, FIG. 7 (a). 6 (a) is an FF end view, FIG. 7 (b) is a GG end view of FIG. 6 (a), and FIG. 8 (a) is an FF end face of FIG. 6 (a). In the figure, the end view of the state in which the lid 100 is fitted to the container body 200, FIG. 8 (b) is the GG end view of FIG. 6 (a), in which the lid 100 is fitted to the container body 200. It is the end view of the state which made it made.

As shown in FIGS. 6 and 7, in the packaging container 300 provided with the lid 100 and the container body 200, the lid 100 and the container body 200 are fitted by simply placing the lid 100 on the container body 200. It is in the previous state. In this state, as shown in FIG. 7A, the surface 172 of the lid-side inclined surface 170 of the lid 100 is in contact with the container-side inclined surface 270 of the container body 200, and the upper side of the lid-side inclined surface 170. The lid-side fitting portion 150 that is continuous with the lid and the container-side fitting portion 250 that is continuous below the container-side inclined surface 270 are not fitted to each other.

Next, as shown in FIG. 8, when the lid 100 is pressed downward, the lid-side inclined surface 170 of the lid 100 slides downward on the container-side inclined surface 270 of the container body 200. Then, the lid-side engaging portion 153 of the upper lid-side fitting portion 150 of the lid-side inclined surface 170 gets over the container-side engaging portion 253 of the lower container-side fitting portion 250 of the container-side inclined surface 270. , The lid-side fitting portion 150 and the container-side fitting portion 250 are fitted to each other. Then, even if the lid 100 is lifted upward and the lid 100 is about to be inadvertently disengaged from the container body 200, the lid-side engaging portion 153 of the lid-side fitting portion 150 is the container-side fitting portion 250. Since it is locked to the container-side engaging portion 253 of the above, it is possible to prevent the lid-side fitting portion 150 and the container-side fitting portion 250 from being inadvertently disengaged.

As described above, the fitting between the lid-side fitting portion 150 and the container-side fitting portion 250 is difficult to be disengaged by the lid-side engaging portion 153 and the container-side engaging portion 253. On the other hand, when the lid 100 is pressed downward, the lid-side inclined surface 170 continuous with the lower end side of the lid-side engaging portion 153 is the container side continuous with the upper end side of the container-side engaging portion 253. Since the inclined surface 270 can be slidably moved, the lid-side inclined surface 170 serves as a guide surface, facilitating fitting between the lid-side fitting portion 150 and the container-side fitting portion 250.

In particular, as shown in FIG. 3A, the lid-side inclined surface 170 continuous with the lower end side of the lid-side engaging portion 153 of the lid 100 is directed toward the vertical axis Y rather than the horizontal axis X with respect to the top surface 110. Since it is relatively greatly inclined, the lid-side inclined surface 170 becomes more slippery downward when it comes into contact with the container-side inclined surface 270 or a part of the container-side fitting portion 250. As a result, when the lid 100 is pressed downward, the lid-side inclined surface 170 smoothly slides downward on the container-side inclined surface 270 or a part of the container-side fitting portion 250, and the lid-side is inclined. The lid-side fitting portion 150 on the upper end side of the inclined surface 170 and the container-side fitting portion 250 are easily fitted. Further, since the inclined surface 170 on the lid side slides smoothly downward, the lid 100 can be fitted to the container body 200 even if the lid 100 is pressed downward with a lighter force. Since the lid 100 can be fitted to the container body 200 with a lighter force, the work efficiency is improved and the burden on the operator is reduced.

Further, as shown in FIG. 7B, the surface 172 is configured to have an uneven shape by providing the convex portion 171 on the surface 172 of the lid side inclined surface 170. Then, in the state before the lid 100 and the container body 200 are fitted by simply placing the lid 100 on the container body 200, the lid side inclined surface 170 and the container side inclined surface 170 and the container side inclined surface are formed by concave and / or convex. Since the 270 includes a portion that abuts against each other and a portion that does not abut with each other, the lid-side inclined surface 170 and the container-side inclined surface 270 are not in contact with each other on the entire surface, and only a part thereof is in contact with each other ( More specifically, the surface 172 of the lid-side inclined surface 170 and the surface 272 of the container-side inclined surface 270 do not come into surface contact with each other, and only the convex portion 171 of the lid-side inclined surface 170 is the surface 272 of the container-side inclined surface 270. The surface 172 in which the convex portion 171 of the lid-side inclined surface 170 is not provided is in contact with the surface 272 of the container-side inclined surface 270).

Therefore, the contact area between the lid-side inclined surface 170 and the container-side inclined surface 270 is reduced, and the frictional resistance is reduced. Therefore, when the lid-side inclined surface 170 comes into contact with the container-side inclined surface 270, the contact area is lowered. It is slippery. As a result, when the lid 100 is pressed downward, the lid-side inclined surface 170 slides more smoothly downward on the container-side inclined surface 270, and the lid-side inclined surface 170 is on the upper end side of the lid side. The fitting portion 150 and the container-side fitting portion 250 are more easily fitted. Further, since the inclined surface 170 on the lid side slides smoothly downward, the lid 100 can be fitted to the container body 200 even if the lid 100 is pressed downward with a lighter force.

In addition, in FIG. 7B, by providing the convex portion 171 on the surface 172 of the lid side inclined surface 170, the lid side inclined surface 170 is configured to have an uneven shape, but the present invention is not limited to this, and the container side inclination is not limited to this. By providing a convex portion on the surface 272 of the surface 270, the container-side inclined surface 270 may be configured to have an uneven shape. As a result, the contact area between the lid-side inclined surface 170 and the container-side inclined surface 270 is reduced, and the frictional resistance is reduced. Therefore, when the lid-side inclined surface 170 comes into contact with the container-side inclined surface 270, the contact area is lowered. It becomes more slippery. Further, the lid side inclined surface 170 or the container side inclined surface 270 is provided with a convex portion 171 to form an uneven shape, and the lid side inclined surface 170 and the container side inclined surface 270 have a portion that abuts against each other and a portion that does not abut. However, the shape of the lid-side inclined surface 170 or the container-side inclined surface 270 is appropriately changed to an arbitrary shape as long as it includes a portion that abuts against each other and a portion that does not abut. You can also do it.

As shown in FIG. 8, the lid-side fitting portion 150 of the lid 100 is externally fitted to the container-side fitting portion 250 of the container body 200, but the present invention is not limited to this, and the lid 100 is not limited to this. The lid-side fitting portion 150 can adopt any fitting form such as an internal fitting or an internal / external fitting to the container-side fitting portion 250 of the container body 200. Further, as shown in FIGS. 7 and 8, the lid-side engaging portion 153 of the lid-side fitting portion 150 of the lid body 100 engages with the container-side engaging portion 253 of the container-side fitting portion 250 of the container body 200. However, the fitting is not limited to this, and if the fitting between the lid-side fitting portion 150 and the container-side fitting portion 250 is difficult to disengage, the lid-side fitting portion 150 is engaged on the lid-side side. The portion 153 may be configured so as to be engaged with an arbitrary portion of the container-side fitting portion 250. Further, as shown in FIG. 7, the lid-side inclined surface 170 of the lid 100 is in contact with the container-side inclined surface 270 of the container body 200, but the present invention is not limited to this, and the lid-side inclined surface of the lid 100 is not limited to this. The 170 may be configured to come into contact with any position on the upper end side of the container-side fitting portion 250.

The lid of the packaging container and the packaging container of the present invention are not limited to the above examples, but are various modifications and combinations within the scope of the claims and the scope of the embodiments. Is possible, and these variations and combinations are included in the scope of rights.

Claims (3)

On the top and
A lid of a packaging container provided with a lid-side fitting portion that can be fitted to the container-side fitting portion of the container body on the outside of the top surface.
The lid-side fitting portion includes a lid-side engaging portion that can be engaged with a part of the container-side fitting portion of the container body.
A packaging container characterized in that a lid-side inclined surface is provided on the lower end side of the lid-side engaging portion so as to be inclined toward a vertical axis with respect to the top surface rather than a horizontal axis with respect to the top surface. The lid.
The container body having the container side fitting part and
A packaging container provided with a lid having a lid-side fitting portion that can be fitted to the container-side fitting portion.
The container-side fitting portion includes a container-side engaging portion that can be engaged with a part of the lid-side fitting portion, and a container-side inclined surface on the upper end side of the container-side engaging portion.
The lid-side fitting portion includes a lid-side engaging portion that can be engaged with a part of the container-side fitting portion, and a lid-side inclined surface on the lower end side of the lid-side engaging portion.
In a state where the lid is placed on the container body and the lid-side fitting portion is fitted to the container-side fitting portion, the container-side inclined surface and the lid-side inclined surface are in contact with each other. A packaging container characterized by having a portion that does not come into contact with the container.
The packaging container according to claim 2, wherein the surface of the inclined surface on the container side or the inclined surface on the lid side is formed in an uneven shape.

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