JP2019099206A - Container with lid - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a container with a lid having improved sealing property with a container body only by a lid without using a sealing member. SOLUTION: A bottomed tubular container body 2 provided with an annular flange portion 13 protruding outward in the radial direction on an upper end edge, and a bottomed tubular container body 2 detachably attached to the flange portion 13 to provide an upper end opening 2A. The inner cylinder portion 22 is provided with a lid 3 to be closed, and the lid 3 is detachably fitted in the peripheral wall portion 12, and the outer cylinder portion is detachably fitted to the outer peripheral edge of the flange portion 13. 24 and an annular connecting portion 23 connecting the inner cylinder portion 22 and the outer cylinder portion 24 are provided, and the flange portion 13 is formed with a sealing protrusion 13A that abuts on the annular connecting portion 23. [Selection diagram] Fig. 2

Description

  The present invention relates to a container with a lid.

  As a container of this type, a bottomed cylindrical container body provided with an annular flange portion projecting outward in the upper end edge that intersects the container axis, and a seal member attached to the flange portion of the container body , Are known (see, for example, Patent Document 1). Further, as such a container, a lidded container is also known in which a lid is removably attached to a flange portion of a container body to which a seal member is attached.

Unexamined-Japanese-Patent No. 2006-306448

  However, even in such a lidded container, it is required to maintain the sealing property of the contents in the container body only by the lid without using the sealing member.

  Then, an object of this invention is to provide the container with a lid | cover which improved the sealing property with a container main body only by the cover body, without using a sealing member.

  The present invention adopts the following means in order to solve the above problems. That is, the lidded container of the present invention is detachably mounted on the bottomed cylindrical container body provided with an annular flange portion projecting outward in the upper end edge crossing the container axis, and the flange portion in a removable manner. A cover that closes the upper end opening of the container main body, the inner cylindrical part in which the cover is detachably fitted in the peripheral wall of the container main body, and the outer peripheral edge of the flange And an annular connecting portion connecting the inner cylindrical portion and the outer cylindrical portion, wherein one of the flange portion and the annular connecting portion includes the annular connecting portion. A sealing projection is formed in contact with the other of the flange portion and the annular connection portion.

In the present invention, since the container body and the lid are in contact at at least three locations, such a sealing structure is not provided and the lid is simply locked to the flange portion of the container body. The sealing performance between the container body and the lid is improved as compared with the container with a lid. That is, the seal between the container body and the lid is performed between the peripheral wall portion of the container body and the inner cylindrical portion of the lid, between the flange portion of the container body and the annular connection portion of the lid, and the container It is formed between the outer peripheral edge of the flange portion of the main body and the outer cylindrical portion of the lid, and the contents in the container main body are between the container main body and the lid in order to leak to the outside of the container with the lid. It is necessary to pass through these sealing points formed between them.
Further, in a state where the lid is attached to the container main body, the inner cylindrical portion and the outer cylindrical portion of the lid sandwich the peripheral wall portion and the flange portion of the container main body in the direction crossing the container axis. And the sealing projection provided on one of the flange portion and the annular connection portion is in contact with the other of the flange portion and the annular connection portion. Since the lid is in contact with the container body, movement of the lid body relative to the container body in the container axial direction is restricted. Therefore, the state of contact between the container body and the lid is further maintained, and the sealing property between the container body and the lid is more reliably maintained.
Therefore, the sealability between the container body and the lid is improved.

Further, in the lidded container of the present invention, a portion of the inner peripheral surface of the peripheral wall portion in contact with the inner cylindrical portion forms a convex surface projecting inward, and the outer peripheral surface of the inner cylindrical portion The contact portion with the peripheral wall portion may form a convex surface protruding outward.
In the present invention, since the peripheral wall portion and the inner cylinder portion are in contact with each other by the convex surfaces, the contact portion can be formed more reliably between the peripheral wall portion and the inner cylinder portion. This further improves the sealability between the container body and the lid.

Further, in the lidded container of the present invention, the lid may have a bottomed cylindrical shape in which the inner cylindrical portion is a peripheral wall.
In the present invention, by pressing the sheet-like material, it becomes possible to form the lid, and the manufacture of the lid becomes easy.

  According to the container with lid according to the present invention, since the container body and the lid are in contact at at least three places, the sealing performance between the container body and the lid is improved. Further, since the movement of the lid relative to the container body is restricted, the sealability between the container body and the lid is more reliably maintained.

It is an axial direction fragmentary sectional view which shows a container with a lid concerning one embodiment of the present invention. It is an expanded sectional view which shows the container with a lid | cover of FIG.

Hereinafter, an embodiment of a lidded container according to the present invention will be described based on the drawings. In addition, in each drawing used for the following description, in order to make each member recognizable, a reduction scale is suitably changed.
The lidded container 1 according to the present embodiment contains, for example, contents including a liquid and a solid. The contents are not limited to a mixture of liquid and solid.
As shown in FIGS. 1 and 2, the lidded container 1 is attached to a bottomed cylindrical container body 2 for containing contents and the container body 2 so that the upper end opening 2A of the container body 2 can be detached. And a bottomed cylindrical lid 3 to be closed.

  Here, the container body 2 and the lid 3 are disposed in such a manner that their central axes are located on a common axis. Hereinafter, this central axis is referred to as a container axis O, and in FIG. 1, the direction from the container body 2 to the lid 3 along the container axis O is referred to as the upper side, and the opposite direction is the lower side. Further, in a plan view seen from the container axis O, a direction orthogonal to the container axis O is referred to as a radial direction, and a direction circling the container axis O is referred to as a circumferential direction.

As shown in FIGS. 1 and 2, the container body 2 has a disk-like bottom wall portion 11, a cylindrical peripheral wall portion 12 continuously provided upward from the outer peripheral edge of the bottom wall portion 11, and a peripheral wall And an annular flange portion 13 projecting radially outward from the upper end edge of the portion 12.
On the outer peripheral edge of the bottom wall 11, a cylindrical leg 11A is provided so as to protrude downward.
The peripheral wall portion 12 is expanded in diameter from the lower end toward the upper end, and is continuously provided to the lower peripheral wall portion 15 extending from the lower end of the peripheral wall portion 12 to the middle portion in the vertical direction of the peripheral wall portion 12 And an upper peripheral wall portion 16 extending from an intermediate portion in the vertical direction of the peripheral wall portion 12 to an upper end thereof.

The lower peripheral wall portion 15 is curved so as to protrude radially outward. On the other hand, the upper peripheral wall portion 16 is smoothly continued from the upper end of the lower peripheral wall portion 15, and is curved so as to protrude radially inward. When only a plurality of container main bodies 2 are stacked so as to accommodate another container main body 2 inside one container main body 2, the bottom wall of the container main body 2 has one leg 11A of the other container main body 2 A slight gap is formed in the radial direction between the inner peripheral surface of the peripheral wall 12 of one container body 2 and the outer peripheral surface of the peripheral wall 12 of the other container body 2 while in contact with the portion 11 . As a result, when only the container body 2 is stacked, the peripheral wall portion 12 of the other container body 2 is prevented from being caught on the inner peripheral surface of the peripheral wall portion 12 of the one container body 2.
The outer peripheral end face of the flange portion 13 is rounded so as to protrude radially outward. Further, two sealing protrusions 13A are provided on the flange portion 13 so as to protrude upward at intervals in the radial direction.

  The lid 3 includes a disc-shaped bottom plate portion 21, a cylindrical inner cylinder portion 22 continuously provided upward from an outer peripheral edge of the bottom plate portion 21, and a radially outward direction from an upper end edge of the inner cylinder portion 22. And a cylindrical outer cylinder portion 24 provided continuously from the outer peripheral edge of the annular connection portion 23 downward.

The bottom plate portion 21 connects the disk-shaped central portion 31, an annular outer peripheral edge 32 located below the central portion 31, and the outer peripheral edge of the central portion 31 and the inner peripheral edge of the outer peripheral edge 32. And an annular transition portion 33.
The central portion 31 has a diameter larger than the outer diameter of the leg 11A. Further, the transition portion 33 is inclined downward as it goes radially outward from the inner peripheral edge. The outer peripheral edge of the outer peripheral edge portion 32 is separated from the inner peripheral surface of the peripheral wall portion 12. As described above, since the central portion 31 of the bottom plate portion 21 bulges upward with respect to the outer peripheral edge portion 32, the strength against the load in the vertical direction is enhanced as compared to the case where the bottom plate portion 21 is flat. There is. Here, when the container body 2 of another lidded container 1 is stacked on the lid 3 of the lidded container 1, the leg portion 11A of the other lidded container 1 is the bottom plate portion 21 of the lided container 1. Is placed on the central portion 31 of the At this time, the load due to the weight of the other lidded container 1 is received by the central portion 31 of the bottom plate portion 21 of the one lidded container 1, and the central portion 31 is not reversely deformed. Elastic deformation is suppressed.

The inner diameter and the outer diameter of the inner cylindrical portion 22 increase in diameter from the lower end toward the upper end, and the inner cylindrical portion 22 is fitted in the peripheral wall portion 12. The inner cylindrical portion 22 includes a lower inner cylindrical portion 34 extending from the lower end of the inner cylindrical portion 22 to the middle in the vertical direction, and an upper inner cylindrical portion 35 extending from the middle to the upper end in the vertical direction of the inner cylindrical portion 22. And.
The lower inner cylindrical portion 34 has a lower end smoothly connected to the outer peripheral edge portion 32 of the bottom plate portion 21 and is curved so as to protrude radially outward.
The upper inner cylindrical portion 35 is curved so as to protrude radially outward, but is pressed against the inner peripheral surface of the upper peripheral wall portion 16 in a state where the lid 3 is mounted on the container main body 2 . Therefore, surface contact is formed between the outer peripheral surface of the upper inner cylindrical portion 35 and the inner peripheral surface of the upper peripheral wall portion 16.
The sealing projection 13 </ b> A is in contact with the lower surface of the annular connection portion 23.

The outer cylindrical portion 24 is a fitting cylindrical portion 36, a first straight cylindrical portion 37, a first enlarged diameter cylindrical portion 38, a second straight cylindrical portion 39, and a second expanded portion sequentially provided downward from the outer peripheral edge of the annular connection portion 23. The cylindrical portion 40 is provided.
The fitting cylindrical portion 36 is C-shaped in a cross-sectional view in the vertical direction, and extends downward from the outer peripheral edge of the annular connection portion 23 so as to wrap around the outer peripheral edge of the flange portion 13. The fitting cylindrical portion 36 is externally fitted to the outer peripheral edge portion of the flange portion 13, and the inner peripheral surface of the fitting cylindrical portion 36 is in contact with the outer peripheral end surface of the flange portion 13.
The inner diameter and the outer diameter of the first straight cylinder portion 37 are substantially constant in the vertical direction, but in the first straight cylinder portion 37, depressed portions 37A that are depressed radially inward are equally spaced in the circumferential direction. Multiple are formed. Thus, the outer cylindrical portion 24 is more securely attached to the flange portion 13.

The inner diameter and the outer diameter of the first enlarged diameter cylindrical portion 38 gradually increase in diameter from the upper end toward the lower end, and the lower end of the first enlarged diameter cylindrical portion 38 is positioned radially outward of the flange portion 13 doing.
The inner diameter and the outer diameter of the second straight cylindrical portion 39 are substantially constant in the vertical direction, and the position of the lower end of the second straight cylindrical portion 39 in the vertical direction is equal to that of the outer peripheral edge portion 32.
The inner diameter and the outer diameter of the second enlarged diameter cylindrical portion 40 gradually increase in diameter from the upper end toward the lower end.

Next, a method of using the lidded container 1 configured as described above will be described.
First, contents such as a mixture of liquid and solid are filled in the container body 2. Then, by fitting the inner cylindrical portion 22 of the lid 3 into the peripheral wall portion 12 of the container main body 2 and fitting the outer cylindrical portion 24 to the outer peripheral edge of the flange portion 13, the lid 3 is mounted to the container main body 2 Attach to When the lid 3 is attached to the container body 2, the two sealing bumps formed between the upper peripheral wall portion 16 of the container body 2 and the upper inner cylindrical portion 35 of the lid 3 and the flange portion 13 of the container body 2 The container body 2 is provided between the portion 13A and the annular connection portion 23 of the lid 3 and between the outer peripheral edge of the flange portion 13 of the container body 2 and the fitting cylindrical portion 36 of the lid 3 The lid 3 contacts.

In addition, since the sealing protrusion 13A is formed in the flange portion 13 and a gap is formed between the upper surface of the outer peripheral edge portion of the flange portion 13 and the annular connection portion 23, the lid 3 is used as the container body. When the outer peripheral edge of the annular connection portion 23 is elastically deformed downward at the time of mounting on 2, the fitting cylindrical portion 36 gets over the outer peripheral end face of the flange portion 13 and is externally fitted to the flange portion 13. Here, for example, when the flange portion 13 is made thicker by the height of the sealing projection 13A without providing the sealing projection 13A in the flange portion 13, the lid 3 is attached to the container main body 2 Since there is no space for the outer peripheral edge of the annular connection portion 23 to elastically deform downward, the fitting cylindrical portion 36 hardly gets over the outer peripheral end surface of the flange portion 13.
In addition, when attaching the lid 3 to the container main body 2, the outer peripheral edge of the flange portion 13 abuts on the first enlarged diameter cylindrical portion 38, and then the first enlarged diameter cylindrical portion 38 and the first straight cylindrical portion 37. You will be guided along. Thus, the outer cylindrical portion 24 elastically deforms outward in the radial direction before the fitting cylindrical portion 36 gets over the outer peripheral end surface of the flange portion 13. Also by this, the lower end of the fitting cylindrical portion 36 easily gets over the outer peripheral end face of the flange portion 13.

When the lid 3 is mounted on the container body 2, the inner cylindrical portion 22 and the outer cylinder portion 24 of the lid 3 sandwich the peripheral wall 12 and the flange portion 13 of the container body 2 in the radial direction. The outer peripheral surface of the upper inner cylindrical portion 35 is pressed against the inner peripheral surface of the upper peripheral wall portion 16 of the container main body 2, and the inner peripheral surface of the fitting cylindrical portion 36 of the lid 3 is the outer peripheral end surface of the flange portion 13 of the container main body 2 It is pressed against. Furthermore, since the fitting cylindrical portion 36 of the lid 3 is externally fitted to the outer peripheral edge portion of the flange portion 13 and the two sealing protrusions 13A provided on the flange portion 13 are in contact with the annular connection portion 23 The annular connection portion 23 is pressed against the sealing projection 13A. Thus, movement of the inner cylindrical portion 22, the outer cylindrical portion 24 and the annular connecting portion 23 of the lid 3 relative to the peripheral wall 12 and the flange 13 of the container body 2 is more reliably restricted. Therefore, the sealability between the lid 3 and the container body 2 is improved. In addition, since the depressed portion 37A is provided in the first straight cylinder portion 37, the lid 3 is not easily removed from the container body 2 unintentionally due to an unexpected impact or the like.
As described above, the lidded container 1 is assembled.

  When the lid 3 is removed from the container body 2, for example, the second diameter-increased cylindrical portion 40 of the lid 3 is gripped and pulled outward in the radial direction to elastically deform the outer cylindrical portion 24 outward in the radial direction. As a result, the engagement between the fitting cylindrical portion 36 and the outer peripheral edge portion of the flange portion 13 is released, and the lid 3 is pulled up in this state. In the lidded container 1, the inner cylindrical portion 22 of the lid 3 is fitted in the peripheral wall portion 12 of the container main body 2 and the outer cylindrical portion 24 in order to improve the sealability between the container main body 2 and the lid 3. The lid 3 is firmly attached to the container main body 2 by externally fitting the flange portion 13 to the outer peripheral edge portion of the flange portion 13. However, as described above, since the second enlarged diameter cylindrical portion 40 and the like extending downward from the flange portion 13 are formed in the lid 3, the second enlarged diameter cylindrical portion 40 is gripped and operated. Thus, the lid 3 can be easily removed from the container body 2.

  In such a container 1 with a lid, when the content contained in the container 1 with a lid tries to leak to the outside, first, the leakage of the content occurs between the upper peripheral wall portion 16 of the container body 2 and the lid 3 Even if it is blocked by the contact portion formed between the upper inner cylindrical portion 35 and the contents passing through the contact portion, the two sealing protrusions 13A formed on the flange portion 13 and Leakage of contents is prevented at the contact portion with the annular connection portion 23 and at the contact portion between the outer peripheral edge portion of the flange portion 13 and the fitting cylindrical portion 36.

  Therefore, in such a container 1 with a lid, when the container 1 with a lid is rolled over in a state of containing water and contained, for example, the container 1 has a sealing function like the container 1 with a lid according to the present invention at room temperature. In the conventional lidded container in which the lid is simply locked to the flange portion of the container body, the water leaks in about 10 seconds, but the water leak is not observed for 30 minutes or more. Therefore, in the lidded container 1 according to the present invention, the sealability between the container body 2 and the lid 3 is improved, and particularly when the liquid is contained as a content, the liquid leaks It can be seen that it provides an effective and good sealing property for the

As mentioned above, according to the container 1 with a lid concerning this embodiment, since the container main body 2 and the lid 3 contact | abut in at least three places, the sealing property between the container main body 2 and the lid 3 is This improves the sealing property of the liquid, particularly when the content contains the liquid. Further, since the movement of the lid 3 in the vertical and radial directions with respect to the container body 2 is restricted, the sealability between the container body 2 and the lid 3 is more reliably maintained.
Here, since the upper peripheral wall portion 16 of the peripheral wall portion 12 and the upper inner cylindrical portion 35 of the inner cylindrical portion 22 are in contact with each other as convex surfaces, the sealability between the container body 2 and the lid 3 is further improved Do.
Furthermore, since the lid 3 can be formed by pressing the sheet-like material, manufacturing of the lid 3 becomes easy.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the scope of the present invention.
For example, although the lid has a bottomed cylindrical shape in which the inner cylindrical portion is a peripheral wall in the above embodiment, the lid may have another configuration. For example, the lid has an apical cylindrical shape, and includes a disc-like top plate portion, a cylindrical outer cylinder portion extending downward from an outer peripheral edge of the top plate portion, and an outer cylinder portion It also has a cylindrical inner cylindrical portion that extends downward from the top plate in the radially inward direction. Here, the outer peripheral edge portion of the top plate also has a function as an annular connecting portion that connects the upper end of the inner cylindrical portion and the upper end of the outer cylindrical portion.
In addition, a portion of the peripheral wall portion in contact with the inner cylinder portion forms a convex surface protruding radially inward, and a portion of the inner cylindrical portion in contact with the peripheral wall portion forms a convex surface protruding outward in the radial direction However, either one may be convex, or both may not be convex.
Although the sealing protrusion is formed in two lines in the flange portion, at least one line may be formed, and one or three or more lines may be formed. In addition, the sealing projection may be formed on the annular connection portion, or may be formed on both the flange portion and the annular connection portion.
Although the container body and the lid are cylindrical, they may have other shapes such as rectangular cylinders other than cylindrical.

  According to the present invention, industrial applicability is recognized with regard to a lidded container in which the sealability between the container body and the container body is improved only by the lid without using the sealing member.

Reference Signs List 1 container, 2 container main body, 2A upper end opening, 3 lid, 12 peripheral wall, 13 flange, 13A sealing projection, 22 inner cylinder, 23 annular connection, 24 outer cylinder

Claims (3)

A bottomed cylindrical container body provided at the upper end edge with an outwardly projecting annular flange portion intersecting the container axis;
A lid removably mounted on the flange and closing an upper end opening of the container main body;
The inner cylinder portion in which the lid body is detachably fitted in the peripheral wall portion of the container body, an outer cylinder portion in which the lid member is detachably fitted to the outer peripheral edge of the flange portion, the inner cylinder portion and the outer And an annular connection portion connecting the tube portion;
A container with a lid, wherein one of the flange portion and the annular connection portion is formed with a sealing projection that is in contact with the other of the flange portion and the annular connection portion. Of the inner peripheral surface of the peripheral wall portion, the contact portion with the inner cylindrical portion forms a convex surface that protrudes inward;
The container with a lid according to claim 1, wherein a contact portion with the peripheral wall portion among the outer peripheral surface of the inner cylindrical portion forms a convex surface which protrudes outward.   The container with a lid according to claim 1 or 2, wherein the lid has a bottomed cylindrical shape in which the inner cylindrical portion is a peripheral wall.

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