JP6898709B2 - Lid - Google Patents

Description

The present invention relates to a lid.

Conventionally, a resin container having a rectangular shape in a plan view for storing foods such as butter, margarine, jam, and yogurt has been known. Such a container is composed of a bottomed container body filled with food and a heavenly lid that can be engaged with and closed from the outer peripheral portion of the opening of the container body to open and close the opening (for example,). See Patent Documents 1 and 2).

As an engagement / disengagement structure of the container body and the lid body, an engaging claw portion on the container body side protruding outward is formed at the corner portion of the outer peripheral portion of the container body, and the corner portion of the inner peripheral portion of the lid body is formed. In general, the engaging claw portion on the lid side protruding inward is formed. Such engaging claws are provided with a predetermined length along the circumferential direction.

When the lid body is removed from the container body to open the opening, the long side side of the container body is gripped from the outside while the long side side of the container body is gripped, and a force is applied to the inside together with the container body. Then, the long side of the lid is distorted and at the same time the short side is deformed so as to spread outward, the corners of the lid are separated outward from the corners of the container body, and the lid and the container body are engaged with each other. The engagement of the claw is released.

Japanese Patent No. 5543949 Japanese Unexamined Patent Publication No. 2013-52213

In recent years, for reasons such as consideration for the environment, the thickness of containers has been reduced by reducing the resin usage fee.
However, when the lid is thinned, its rigidity becomes low, and when the lid is removed from the container body, the force applied to distort the lid is strained on the long side due to its high flexibility. Concentrate on, and the distortion on the short side becomes smaller. Therefore, there is a problem that it becomes difficult to disengage the lid body and the container body from each other, and it becomes difficult to remove the lid body.

An object of the present invention is to provide a lid that can be easily removed from the container body even when the thickness is thinned.

The lid body of the present invention is a resin lid body that is detachably attached to a container body provided with a rising side wall forming an edge of the opening and covers the opening, and is attached to the container body at the time of attachment. A square frame-shaped hanging side wall located outside the rising side wall is provided, and the hanging side wall is a pair of grips on the side facing the corners provided at the four corners and being gripped from the outside. It is provided with a side side portion and a pair of non-grip side portions that sandwich the opening and face the gripping side portion at an angle, and the corner portion is a main body side engagement provided in the container body. The lid side engaging portion that engages and disengages with the joint portion is provided, and the gripping side side portion includes a thick portion that is thicker than the non-grasping side side portion.

According to the present invention, since the gripping side side portion of the lid body is provided with a thick wall portion, the rigidity of the gripping side side portion can be increased. Therefore, when a force is applied to the gripping side side portion of the lid body in the operation of removing the lid body from the container body, it is possible to prevent only the gripping side side portion from being deformed. As a result, the non-grasping side of the lid can be reliably deformed, and it is possible to prevent the lid and the container body from being easily disengaged from each other. Therefore, even if the lid is thinned, the lid can be placed in the container. It can be easily removed from the main body.

In the lid body of the present invention, it is preferable that the thick portion is formed in a linear shape extending outward and extending in the circumferential direction of the hanging side wall.

According to the present invention, since the thick portion is formed in a linear shape extending in the circumferential direction, the area of the thick portion can be suppressed. Therefore, the removableness of the lid can be improved while reducing the resin usage fee.

In the lid body of the present invention, it is preferable that the thick portion is formed in a plurality of linear shapes parallel to each other.

According to the present invention, since the thick-walled portions are formed in a plurality of linear shapes parallel to each other, the thick-walled portions can be formed into an uneven shape. Therefore, slippage can be prevented when gripping the gripping side side portion of the lid body, and the lid body can be reliably gripped.
Further, since the thick portion has an uneven shape, the gripping side portion can be recognized by tactile sensation.

In the lid body of the present invention, it is preferable that the thick portion is provided at the central portion in the circumferential direction of the hanging side wall.

According to the present invention, since the thick portion is provided at the central portion in the circumferential direction, it is possible to increase the rigidity of the central portion of the gripping side side portion which is easily deformed when the lid body is gripped. Therefore, it is possible to surely prevent the force applied when removing the lid body from being concentrated on the gripping side side portion of the lid body, and it is possible to further improve the removability of the lid body.

The exploded perspective view which shows the whole of the container which concerns on one Embodiment of this invention. Side view of the lid. FIG. 2 is a sectional view taken along line III-III of FIG.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is an exploded perspective view showing the entire container 1 according to the present embodiment. 2 and 3 are a side view and a cross-sectional view of the lid 3.

[container]
In FIG. 1, the container 1 stores foods such as butter and margarine, and is an injection-molded resin product. The container 1 includes a bottomed container body 2 having an opening 2A formed in the upper portion, and a heavenly lid 3 that is detachably attached to the container body 2 and covers the opening 2A.

[Container body]
The container body 2 is continuously provided on the bottom surface portion 21, the side surface portion 22 erected above the peripheral edge of the bottom surface portion 21, and the upper end edge of the side surface portion 22 in the circumferential direction, and faces outward from the upper end edge. The first flange portion 23 extending horizontally and the rising side wall 24 having a substantially square frame shape, which is erected vertically from the tip edge of the first flange portion 23 and forms the edge of the opening 2A, are raised. A second flange portion 25 which is continuously provided on the lower end edge of the side wall 24 in the circumferential direction and extends horizontally from the lower end edge to the outside is provided.

The side surface portion 22 has a substantially rectangular frame shape in a plan view. The side surface portion 22 has a long side side surface portion 22A as a pair of gripping side surface portions on the side facing the opening 2A and being gripped from the outside, and a substantially right angle to the long side side surface portion 22A sandwiching the opening 2A. It is provided with a pair of short side side surface portions 22B as opposite non-grasping side surface portions.
The long side side surface portion 22A includes a curved surface portion 22C recessed inward. The curved surface portion 22C is provided at a substantially central portion in the circumferential direction of the long side side surface portion 22A, and has a curved surface shape that is convex inward along the circumferential direction. That is, the curved surface portion 22C has a curved shape that is convex inward along the circumferential direction in a cross-sectional view, and the curved shape is from the upper end to the lower end (first flange portion 23 to the bottom surface portion 21) of the long side side surface portion 22A. ) Is formed.

The rising side wall 24 has a substantially rectangular frame shape in a plan view. The rising side wall 24 includes a main body side corner portion 24A as an arcuate corner portion provided at four corners, and a pair of main body side long side portions 24B facing each other with an opening 2A and being gripped from the outside. A pair of short side portions 24C on the main body side are provided so as to sandwich the opening 2A and face the long side portion 24B on the main body side at a substantially right angle.
The main body side corner portion 24A includes a single main body side engaging portion 24D having a predetermined length in the circumferential direction while projecting outward. The main body side engaging portion 24D is provided by molding.

The second flange portion 25 is continuously provided over the main body side corner portion 24A, the main body side long side portion 24B, and the main body side short side portion 24C. Such a second flange portion 25 is a portion that supports the lid body 3. In FIG. 1, the second flange portion 25 is largely extended to the main body side short side portion 24C and the main body side corner portions 24A on both sides thereof, and the thickness of the lid 3 is large at a position corresponding to the main body side long side portion 24B. Although it is drawn as a small extension, it may be formed with substantially the same extension length along the circumferential direction, for example.

[Lid]
As shown in FIGS. 2 and 3, the lid 3 is formed on the top surface portion 31, the substantially square frame-shaped side surface portion 32 suspended downward from the peripheral edge of the top surface portion 31, and the lower end edge of the side surface portion 32. The first flange 33, which is continuously provided in the circumferential direction and slightly extends horizontally from the lower end edge to the outside, and is hung from the tip edge of the first flange 33, and is attached to the container body 2 at the time of attachment. A substantially square frame-shaped hanging side wall 34 located outside the rising side wall 24 and a lower end edge of the hanging side wall 34 are continuously provided in the circumferential direction, and slightly extend horizontally from the lower end edge to the outside. It is provided with a second flange portion 35.

The hanging side wall 34 has a substantially rectangular frame shape in a plan view. The hanging side wall 34 faces the arc-shaped lid side corners 34A provided at the four corners with the opening 2A of the container body 2 interposed therebetween, and the lid side as a pair of gripping side sides on the side gripped from the outside. It includes a long side portion 34B and a short side portion 34C on the lid side as a pair of non-grasping side portions facing the long side portion 34B on the lid side so as to sandwich the opening 2A.
The lid side corner portion 34A includes a single lid side engaging portion 34D that protrudes inward and has a predetermined length in the circumferential direction and engages with and disengages from the main body side engaging portion 24D. The lid side engaging portion 34D is provided by molding.
The lid side long side portion 34B includes a thick portion 34E that is thicker than the lid side short side portion 34C. The thick portion 34E is provided at the central portion in the circumferential direction of the long side portion 34B on the lid side, protrudes to the outside of the long side portion 34B on the lid side, and has a predetermined length in the circumferential direction of the long side portion 34B on the lid side. It is formed in a plurality of lines parallel to each other. The length of the thick portion 34E in the circumferential direction is set to be at least larger than the height dimension of the long side portion 34B on the lid side. The thick portion 34E is provided by injection molding. The thick portion 34E is within a range in which there is no mold release from the mold when molding the container 1 and molding defects such as sink marks.

The second flange portion 35 is continuously provided over the lid side corner portion 34A, the lid side long side portion 34B, and the lid side short side portion 34C. Such a second flange portion 35 is brought into contact with the second flange portion 25 of the container body 2 to support the lid body 3.

[Removal of lid]
When the lid 3 is removed from the container body 2 to open the opening 2A, the opposite long side portion 34B of the lid 3 is gripped from the outside, and the lid 3 is distorted and deformed inward (FIG. 1). See the white arrow inside and the two-point chain line). At this time, since the thick portion 34E is hardly deformed, the force applied to the lid 3 is not absorbed by the thick portion 34E and is transmitted from the long side portion 34B on the lid side to the short side portion 34C on the lid side. Then, the short side portion 34C on the lid side of the lid 3 is distorted so as to spread outward, the corner portion 34A on the lid side of the lid 3 is separated outward from the corner portion 24A on the main body side of the container body 2, and the lid 3 and the container are separated. The engagement of the engaging portions 24D and 34D of the main body 2 with each other is released.

[Effect of Embodiment]
According to the present embodiment, since the long side portion 34B on the lid side of the lid 3 includes the thick portion 34E, the rigidity of the long side portion 34B on the lid side can be increased. Therefore, when a force is applied to the lid side long side portion 34B of the lid body 3 in the operation of removing the lid body 3 from the container body 2, it is possible to prevent only the lid body side long side portion 34B from being deformed. As a result, the long side portion 34B on the lid side of the lid body 3 can be reliably deformed, and it is possible to prevent the lid body 3 and the container body 2 from becoming difficult to be disengaged from each other. The lid 3 can be easily removed from the container body 2.

Further, since the thick portion 34E is formed in a linear shape extending in the circumferential direction, the area of the thick portion 34E can be suppressed. Therefore, the removability of the lid 3 can be improved while reducing the resin usage fee.

Further, since the thick portion 34E is formed in a plurality of linear shapes parallel to each other, the thick portion 34E can be formed into an uneven shape. Therefore, slippage can be prevented when gripping the lid side long side portion 34B of the lid body 3, and the lid body 3 can be reliably gripped.
Further, since the thick portion 34E has an uneven shape, the long side portion 34B on the lid side can be recognized by touch.

Further, since the thick portion 34E is provided at the central portion in the circumferential direction, the rigidity of the central portion of the long side portion 34B on the lid side, which is easily deformed when the lid body 3 is gripped, can be increased. Therefore, it is possible to surely prevent the force applied when removing the lid 3 from being concentrated on the long side portion 34B on the lid side of the lid 3, and the detachability of the lid 3 can be further improved. The thick portion 34E is preferably provided in a range that does not overlap with the lid side engaging portion 34D. When the thick portion 34E overlaps the lid side engaging portion 34D, the engagement between the lid side corner portion 34A and the main body side corner portion 24A becomes difficult to be disengaged, and the lid 3 becomes difficult to remove.

[Modification example]
The present invention is not limited to the above-described embodiment, and modifications and the like within the range in which the object of the present invention can be achieved are included in the present invention.
For example, the container body 2 may include a plurality of curved surface portions 22C. In this case, the curved surface portions 22C may be provided on both sides of the long side side surface portion 22A with the central portion interposed therebetween. Further, three or more curved surface portions 22C may or may not be provided on the side surface portion 22.

The thick portion 34E may be formed in a single linear shape, or may be formed in a strip shape instead of a linear shape. Further, a plurality of thick portions 34E may be provided side by side in the circumferential direction of the long side portion 34B on the lid side, may be provided continuously in the entire circumferential direction of the long side portion 34B on the lid side, or the lid may be provided. It may be provided on the entire surface of the body side long side portion 34B.
The thick portion 34E may be provided by embossing.

A plurality of main body side engaging portions 24D and lid side engaging portions 34D may be provided in the main body side corner portion 24A and the lid side corner portion 34A.

The side surface portion 22, the rising side wall 24, and the hanging side wall 34 may have a square frame shape instead of a rectangular frame shape in a plan view. Further, even in the case of a rectangular frame shape, the gripped side is the short side side surface portion 22B, the main body side short side portion 24C, and the lid side short side portion 34C, and the non-grasping side is the long side side surface portion 22A, the main body side length. The side portion 24B and the long side portion 34B on the lid side may be used.

INDUSTRIAL APPLICABILITY The present invention can be suitably used as a container for containing foods such as butter and margarine.

1 ... container, 2 ... container body, 2A ... opening, 3 ... lid, 21 ... bottom surface, 22 ... side surface, 22A ... long side side surface, 22B ... short side side surface, 22C ... curved surface, 24 ... standing Upper side wall, 24D ... main body side engaging part, 34 ... hanging side wall, 34A ... lid side corner part (corner part), 34B ... lid side long side part (grasping side side part), 34C ... lid side short side part (non) Gripping side side portion), 34D ... lid side engaging portion, 34E ... thick wall portion.

Claims (2)

A resin lid that is detachably attached to the container body provided with a rising side wall that forms the edge of the opening and covers the opening.
A square frame-shaped hanging side wall located outside the rising side wall when attached to the container body is provided.
The hanging side wall
The corners provided at the four corners and
A pair of gripping side sides facing each other across the opening and gripping from the outside,
It is provided with a pair of non-grip side sides that sandwich the opening and face the grip side at an angle.
The corner portion includes a lid side engaging portion that engages and disengages with the main body side engaging portion provided on the container body.
The gripping side portion includes a thick portion thicker than the non-grasping side portion .
The thick-walled portion is a lid body that protrudes outward and is formed in a plurality of lines parallel to each other extending in the circumferential direction of the hanging side wall. In the lid according to claim 1,
The thick portion is a lid body provided at a central portion in the circumferential direction of the hanging side wall.

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