JP2022168435A - Wide-mouthed container, and wide-mouthed container filling method - Google Patents

Abstract

To provide a wide-mouthed container whose time and labor are hardly required for taking out a content from a storage space after user's purchasing, and whose part of the content is unlikely to be vaporized; and to provide a wide-mouthed container filling method.SOLUTION: The wide-mouthed container comprises: a container body (12) which can store a content in a storage space; a lid body unit (13) which is assembled to the container body (12) and in which a lid member (13a) openably and closably closes an opening above the storage space; and a substantially flat plate-shaped inner lid (14) which is formed of an elastic material and in which an outer peripheral part (14c) is vertically sandwiched by a lid body side holding part (18) provided downward to the lid body unit (13), and a body side holding part (17) provided upward to the container body (12), wherein a cutting thin-wall part (16) for cutting off an inner side of the outer peripheral part (14c) is provided on the inner lid (14).SELECTED DRAWING: Figure 7

Description

TECHNICAL FIELD The present invention relates to a wide-mouthed container and a method of filling a wide-mouthed container, and more particularly to a wide-mouthed container provided with a tear-off thin-walled portion for cutting the inside of the outer edge of the inner lid, and a method of filling the wide-mouthed container.

Conventionally, a wide-mouthed container is a combination of a container body capable of accommodating contents in a storage space and a lid unit in which a lid member closes an opening above the storage space so as to be openable and closable. There is a wide-mouth container in which a lid is arranged (Patent Document 1 (paragraphs 0027 to 0029 of the detailed description of the invention)).

In a wide-mouthed container with such a conventional inner lid, the inner lid is sandwiched between the container body and the lid unit, so that the inner lid plays a role of packing, and even if it is tilted or shaken, the contents in the storage space can be maintained. There is an advantage that it is less likely that the liquid will overflow from the inside of the inner lid. In addition, since the lid member opens and closes with a hinge, the user can open and close the lid member freely after removing the inner lid once after purchase to take out the contents in a plurality of times. The inner lid of such a conventional wide-mouthed container is formed, for example, by laminating a thin plastic film on a low-foam polyethylene sheet.

JP 2018-172147 A

The wide-mouthed container 1 provided with the conventional inner lid has the inner lid 4 sandwiched between the container body 2 and the lid unit 3 as shown in the partial cross-sectional view of FIG. However, in order to take out the contents from the storage space 5, the lid unit 3 must be once removed from the container body 2, the inner lid 4 must be removed, and the lid unit 3 must be reassembled with the container body 2, which is troublesome for the user. .

Further, after the inner lid 4 is removed, the user tightens the lid body unit 3 to narrow the gap where the inner lid 4 was originally arranged, but the content such as moisture and alcohol still remains. There is a great possibility that part of the gas will evaporate.

SUMMARY OF THE INVENTION Accordingly, the present invention provides a wide-mouthed container that requires less trouble for a user to take out the contents from the storage space after purchase, and that reduces the risk of part of the contents vaporizing, and a filling method for the wide-mouthed container. for the purpose.

(1) The present invention comprises a container body capable of containing contents in a container space, a lid body unit combined with the container body and having a cover member closing an opening above the container space in an openable and closable manner, and an elastic material. A substantially flat inner lid having an outer edge portion vertically sandwiched between a lid-side sandwiching portion provided downward on the lid unit and a body-side sandwiching portion provided upward on the container body. The wide-mouthed container is characterized in that the inner lid is provided with a thin-walled portion for cutting off the inside of the outer edge portion.

That is, in the wide-mouthed container of the present invention, the inside of the outer edge can be cut along the tear-off thin-walled portion, so that the inner lid can be opened with the outer edge left. The user can take out the content by inserting his or her finger into the storage space through the take-out opening while the cover member is open.

Therefore, after purchasing a product in which the contents are housed in a wide-mouthed container, the user must once remove the lid unit from the container body, remove the inner lid, and reassemble the lid unit with the container body. The contents can be taken out by opening the take-out opening in the inner lid. In this way, it is less troublesome for the user. In addition, a user who is not familiar with the method of use does not have to remove the inner lid or open and close the lid member, and the lid unit itself can always be attached to and detached from the container body. Situations like this are less likely to occur.

Further, since the outer edge portion remains sandwiched between the lid-side holding portion and the body-side holding portion even after the opening is opened in the inner lid, a gap is formed where the inner lid was originally arranged. Therefore, there is little possibility that part of the contents will be vaporized due to communication between the storage space and the outside air.

In addition, since the inner cover is made of an elastic material, the outer edge is compressed by being sandwiched between the holding portions, and the reaction force causes the outer edge to expand in a direction away from the holding portions. . As a result, the sealability between the outer edge portion and each of the holding portions is enhanced, so that there is less possibility that part of the contents will vaporize.

(2) Further, the lid unit may be screwed onto the container body.

That is, by screwing the lid unit, which sandwiches the outer edge to the container body, to the container body, the user can adjust the tightening force to fasten the lid unit. can. As a result, the outer edge portion formed of an elastic material can be appropriately compressed, so that optimum sealing performance can be obtained between the outer edge portion and each clamping portion. Thus, there is less risk of part of the contents evaporating.

(3) Further, the outer edge portion has a portion to be locked that partially or entirely protrudes from the lid-side holding portion toward the center of the inner lid, and the portion to be locked faces upward. and may be locked outward by the lid-side holding portion.

In the wide-mouthed container of the present invention, since the user cuts off the inside of the inner lid along the tear-off thin-walled portion, a force toward the center acts on the inner lid so as to pull it toward the center. At this time, although the outer edge portion is sandwiched between the sandwiching portions, if the force directed toward the center is large, the outer edge portion will be displaced toward the center, resulting in insufficient sealing between the sandwiching portions. There is a risk that it will become a thing.

Therefore, the lid-side clamping portion locks the locked portion outwardly with respect to the center against the force directed toward the center, so that the outer edge portion is prevented from being clamped by the clamping portions. It is possible to maintain the sealing performance between the holding portions. Thus, there is less risk of part of the contents evaporating.

(4) Further, the outer edge portion has a portion to be locked that partially or entirely protrudes from the main body-side holding portion toward the center of the inner lid, and the portion to be locked faces downward. may protrude outward and be locked outward by the body-side holding portion.

That is, the outer edge portion is sandwiched between the respective gripping portions by the body-side holding portion locking the engaged portion outwardly with respect to the center against the force directed toward the center of the outer edge portion. It is possible to maintain the state of being held together, and to maintain the sealing performance between the holding portions. Thus, there is less risk of part of the contents vaporizing.

(5) Further, a tab may extend above a cut-off region cut along the cut-out thin portion of the inner cover.

That is, since the tab extends above the cutting area, the user can pick up the tab with fingers and easily cut the inside of the outer edge along the cutting thin portion. . In this way, the wide-mouthed container of the present invention allows the contents to be taken out from the storage space with little effort.

(6) In addition, the thin-walled portion for cutting is an inner wall of the lid-side clamping portion, which is a peripheral wall of the lid-side clamping portion facing inward with respect to the center, and a peripheral wall of the body-side clamping portion facing inward. It may be provided at substantially the same position in the vertical direction view as the inner wall of the body-side holding portion inner wall that is disposed closer to the center.

That is, the cut-off thin-walled portion is provided at substantially the same position in the vertical direction as the inner wall disposed closer to the center, so that the inner edge of the outer edge portion after cutting the inner side of the outer edge portion, It is arranged at substantially the same position as the inner wall arranged closer to the center as viewed in the up-down direction. Therefore, the inner edge does not protrude toward the center from either the inner wall of the lid-side holding portion or the inner wall of the body-side holding portion.

As a result, the user can take out the contents by inserting his or her finger into the outlet without the finger or finger being caught on the inner edge. In this way, the wide-mouthed container of the present invention allows the contents to be taken out from the storage space with less trouble.

(7) Further, the elastic material may have a type D durometer hardness of 40 or more and less than 50 as defined in JIS K7215.

When the elastic material of the inner lid is a material with a type D durometer hardness of less than 40 specified in JIS K7215, the inventors found that the inner lid is too soft and is pinched by each pinching part. It has been found that it is difficult to handle, such as holding it in place. Conversely, when the type D durometer hardness specified in JIS K7215 is 50 or more, the outer edge is too hard, it is compressed by each of the holding parts, and it is difficult to expand due to the reaction. It was found that good sealing performance could not be obtained. In addition, the inventors found that the inner cover is too hard and it is not easy for the user to cut off the inner side of the outer edge with fingers. Furthermore, the inner lid is too hard, and it is difficult for it to be slightly deformed following the pinching portions when pinched by the pinching portions. I found out not to.

Therefore, the wide-mouthed container of the present invention can be manufactured more easily when the elastic material preferably has a type D durometer hardness of 40 or more and less than 50 as defined in JIS K7215. Less risk of part of the object vaporizing.

(8) Alternatively, the elastic material may be low density polyethylene.

That is, due to the high chemical resistance of low-density polyethylene (LDPE), the surface of the wide-mouthed container of the present invention is less likely to react chemically with these chemicals when containing chemicals such as cosmetics and medicines in the storage space. Long life.

(9) Further, the lid member may be joined to another portion of the lid unit by a hinge.

That is, since the lid member is joined by a hinge, the user can open the lid member with one touch and take out the contents from the storage space. In addition, since the lid member does not separate from other parts of the lid unit even in the open state, the user does not have to place the lid member on a separate place. As a result, the contents of the wide-mouthed container of the present invention can be taken out from the storage space with less trouble.

(10) The present invention provides a container body preparation step of preparing a content and a container body capable of accommodating the content in a storage space; A cover unit having a cover member configured to freely open and close an opening positioned above the housing space, and a thin portion for cutting, which is formed of an elastic material and cuts off the inside of the outer edge. a lid assembly preparation step of preparing a lid assembly in which the provided inner lid is combined so that the outer edge portion and the lid-side holding portion provided downward on the lid unit face each other in the vertical direction; a filling step of filling the content in the accommodation space; sandwiching the outer edge portion between the lid-side holding portion and a main-body-side holding portion provided facing upward in the container body; and an assembling step of vertically assembling the container body, the inner lid and the lid unit by screwing the lid assembly together.

Many businesses that fill existing wide-mouthed containers with contents such as cream cosmetics and medicines have facilities for filling conventional container bodies with these contents. In addition, the outer edge of the conventional inner lid, which is not provided with the cutout thin portion, is sandwiched between the conventional container body and the lid unit, and the conventional lid assembly is screwed to the conventional container body. and equipment for vertically assembling the conventional container body, the conventional inner lid, and the conventional lid body unit. The wide-mouthed container filling method of the present invention is efficient because it can be adopted by many of the existing businesses as described above without making major changes to their facilities.

As described above, the present invention can provide a wide-mouthed container and a filling method for the wide-mouthed container that require less trouble for the user to take out the contents from the storage space after purchase. In addition, it is possible to provide a wide-mouthed container and a filling method for the wide-mouthed container in which there is little possibility that a portion of the contents will be vaporized due to communication between the storage space and the outside air. Furthermore, when a material having a type D durometer hardness of 40 or more and less than 50 defined in JIS K7215 is used as the elastic material, it is possible to provide a wide-mouthed container that can be manufactured more easily.

(a) represents a perspective view of a wide-mouthed container according to a first embodiment of the present invention; (b) Perspective views of the wide-mouthed container of FIG. 1(a) separated into a lid unit, an inner lid, and a container body. (a) represents a perspective view of the wide mouth container of FIG. 1; (b) A perspective view of the wide-mouthed container of FIG. 2(a) with the lid member opened. (a) shows a perspective view of a state in which a cut-off region of an inner lid is cut from the wide-mouthed container of FIG. 1; (b) Represents a perspective view of the cut-out region of FIG. 3(a) separated from the inner lid. (a) Represents a plan view of the inner lid of the wide mouth container of FIG. (b) Represents a plan view of the cut-away area of the inner lid of the jar of FIG. (c) represents a plan view of the outer edge of the inner lid of the jar of FIG. 1; 1 shows a partial cross-sectional view of a container body according to a first embodiment of the present invention when viewed from the front; FIG. FIG. 2 shows a partial cross-sectional view of the lid unit according to the first embodiment of the present invention when viewed from the front. (a) Represents a partial cross-sectional view of the wide-mouthed container according to the first embodiment of the present invention when viewed from the front. (b) shows an enlarged view of part A in the partial cross-sectional view of FIG. 7(a). (a) Represents a partial cross-sectional view in a front view of the wide-mouthed container of FIG. 7 with the cut-off region of the inner lid removed. (b) shows an enlarged view of the B portion in the partial cross-sectional view of FIG. 8(a). 1 represents a flow diagram showing a filling method for a wide-mouthed container according to a first embodiment of the present invention; FIG. FIG. 2 shows a front partial cross-sectional view of the lid assembly according to the first embodiment of the present invention; (a) Represents a partial cross-sectional view of a wide-mouthed container according to a second embodiment of the present invention as viewed from the front. (b) shows an enlarged view of the C portion in the partial cross-sectional view of FIG. 11(a). 1 represents a partial cross-sectional view of a conventional wide-mouthed container; FIG.

[First embodiment]
A first embodiment of the present invention will be described with reference to FIGS. 1 to 10. FIG. In FIG. 1( a ), 11 is a wide-mouthed container, which includes a container body 12 and a lid unit 13 arranged above the container body 12 . Further, as shown in FIG. 1B, the wide-mouthed container 11 has a flat inner lid 14 between the container body 12 and the lid unit 13 . In the figure, the direction of arrow U indicates the upward direction of the wide-mouthed container 11, and the direction of arrow D indicates the downward direction. The direction of arrow F similarly indicates the front, and the direction of arrow B similarly indicates the rear. Also, the direction of the arrow L similarly indicates the left direction, and the direction of the arrow R similarly indicates the right direction.

The container body 12 of the wide-mouthed container 11 has a storage space 15 inside, and the storage space 15 can be filled with a content N such as a semisolid or a liquid. Typical contents N of the wide-mouthed container 11 are cream cosmetics, medicines, etc., and are taken out from the storage space 15 by the user with fingers.

The user purchases the contents N packed in the wide-mouthed container 11 as shown in FIG. 2(a). The wide-mouthed container 11 as a whole is formed in a substantially columnar shape centered on a central axis C in the vertical direction. Next, the user opens the lid member 13a of the lid unit 13 to expose the inner lid 14 as shown in FIG. 2(b). The lid member 13a is joined to the body connecting portion 13b of the lid unit 13 via a hinge 13c. The body coupling portion 13b is screwed to the container body 12 so as to be detachable by rotating about the central axis C. As shown in FIG. The hinge 13c has a swing centerline in the left-right direction, and the lid member 13a can swing about the swing centerline with respect to the main body connecting portion 13b. Thereby, the user can open and close the cover member 13a. The body connecting portion 13b and the lid member 13a have engaging means 13d, 13d at positions facing each other. As a result, the user can keep the cover member 13a engaged with the body coupling portion 13b in the closed state of the cover member 13a.

As shown in FIG. 3(a), the user cuts a circular cutting area 14a located inside the inner lid 14 with the lid member 13a opened. The inner lid 14 is formed with an annular cutout thin portion 16 provided inside the outer circle as shown in FIG. 1(b). Moreover, a tab 14b that can be grasped by the user's fingers extends from the upper side of the cutting area 14a. Therefore, the user can cut off the cutting area 14a from the inner cover 14 along the cutting thin portion 16 by lifting the tab 14b upward with fingers as shown in FIG. 3(a). As a result, when the lid member 13a is open, the opening 13e of the lid unit 13 located above the accommodation space 15 is vertically opened.

FIG. 3(b) shows a state in which the cut area 14a is completely separated from the inner cover 14. FIG. In this state, the lid member 13a can open and close the opening 13e. Since the excision area 14a is no longer needed, the user can discard the portion other than the excision area 14a. In addition, the user can insert a finger into the housing space 15 through the opening 13e in the open state of the lid member 13a and take out the content N with the finger.

FIG. 4 shows the form of the inner lid 14 in each of the states shown in FIGS. 2(a) to 3(b). The inner lid 14 shown in FIG. 4(a) shows the form in the state of FIGS. 2(a) and 2(b). At this stage, the cutout thin portion 16 is formed on the inner lid 14 . Next, the inner lid 14 shown in FIG. 4(b) shows a cut-off region 14a corresponding to the cut-off portion in the state of FIGS. 3(a) and 3(b). Also, the inner lid 14 shown in FIG. 4(c) shows an outer edge portion 14c corresponding to a portion remaining after the cut-off region 14a is cut off. That is, after the cutting area 14a is cut along the annular thin portion for cutting 16, the wide-mouthed container 11 is left with an annular outer edge portion 14c. A radially inner edge of the outer edge portion 14c is referred to as an outer edge portion inner edge 14d.

As shown in the partial cross-sectional view of the front view of FIG. 5, the container body 12 is formed continuously with a substantially cylindrical inner peripheral wall portion 12a that surrounds the accommodation space 15 radially inward, and the inner peripheral wall portion 12a. and a bottom portion 12 b located at the bottom of the accommodation space 15 . It also has an outer peripheral wall portion 12c located radially outward of the inner peripheral wall portion 12a, which constitutes a double structure together with the inner peripheral wall portion 12a. As shown in FIG. 5, the outer peripheral wall portion 12c is divided outward from the inner peripheral wall portion 12a at a position approximately one third of the upper side of the inner peripheral wall portion 12a, and has a double structure in the portion below that position. Configure.

Further, the container main body 12 supports the outer edge portion 14c of the inner lid 14 upward at its annular uppermost portion. This annular portion is referred to as a body-side clamping portion 17, and faces a lid-side clamping portion on the side of the lid unit 13, which will be described below. The upper surface of the body-side holding portion 17 is referred to as a body-side holding portion upper surface 17a.

The container body 12 is made of synthetic resin such as polypropylene (PP) and saturated polyester (PET).

Further, the inner peripheral wall portion 12a has an outward thread 12d provided in the circumferential direction between the main body side clamping portion 17 and the position where the outer peripheral wall portion 12c is divided in the vertical direction. The thread 12d is provided over the entire circumference of the inner peripheral wall portion 12a.

The lid unit 13 has a substantially cylindrical main body connecting portion 13b that radially inwardly surrounds the opening 13e, as shown in the partial cross-sectional view in front view of FIG. A folded portion 13f is provided at the uppermost portion of the body coupling portion 13b, the folded portion 13f having a diameter slightly smaller than that of the uppermost portion due to a step. The annular lower end portion of the folded portion 13f of the lid unit 13 supports the outer edge portion 14c of the inner lid 14 downward. This annular portion is referred to as a cover-side clamping portion 18 and vertically faces the body-side clamping portion 17 . The outer edge portion 14c of the inner lid 14 is sandwiched between the body-side sandwiching portion 17 and the lid-side sandwiching portion 18 . The lower surface of the lid-side holding portion 18 is referred to as a lid-side holding portion lower surface 18a.

The lid member 13a has an outer peripheral wall portion 13g protruding downward along the outer edge, and an inner peripheral wall portion 13h protruding downward around the inner side of the outer peripheral wall portion 13g. The outer peripheral wall portion 13g and the inner peripheral wall portion 13h are arranged concentrically in plan view. In the closed state of the lid member 13a, the inner peripheral wall portion 13h has no gap with the folded portion 13f and is configured to strongly abut the folded portion 13f.

Further, the body coupling portion 13b has a thread groove 13i provided in the inner side in the circumferential direction. The thread groove 13i is provided over the entire circumference of the body connecting portion 13b. The screw thread 12 d and the screw groove 13 i mesh with each other so that the lid unit 13 can be screwed onto the container body 12 .

The lid unit 13 is made of synthetic resin such as polypropylene (PP) or high density polyethylene (HDPE).

The inner lid 14 is arranged between the container main body 12 and the lid unit 13, as shown in the front partial sectional view of FIG. 7(a). This figure shows the state before the ablation area 14a is ablated. The portion A in FIG. 7(a) is enlarged in FIG. 7(b). The inner lid 14 is made of an elastic material.

The outer edge portion 14c is vertically sandwiched between the body-side sandwiching portion 17 and the lid-side sandwiching portion 18, as shown in FIG. 7(b). At this time, as a result of the lid unit 13 being screwed into the container body 12, the clamping portions 17 and 18 press the outer edge portion 14c from above and below, and the upper surface 17a of the main body side clamping portion and the lower surface 18a of the lid body side clamping portion become outer edges. It adheres to both sides of the portion 14c.

In addition, the outer edge portion 14c has an engaged portion 19 protruding radially outward from the lid-side holding portion 18 on the entire circumference. The locked portion 19 protrudes upward and fits inside the folded portion 13f. In this state, even when the user lifts the tab 14b and cuts the cutting area 14a of the inner lid 14 along the tear-off thin portion 16, a radially inward force is exerted to pull the inner lid 14 together. On the other hand, the lid-side holding portion 18 can lock the locked portion 19 radially outward.

The cutout thin portion 16 is provided at the boundary between the cutout region 14a and the outer edge portion 14c at substantially the same position as the downward V-shaped groove on the upper surface of the inner lid 14 and the downward V-shaped groove in the vertical direction. and an upward V-shaped groove on the lower surface of the inner lid 14 . Since the thickness at the bottom of these upper and lower V-shaped grooves is thin, they can be easily cut off. The cutout thin-walled portion 16 is provided at substantially the same position in the vertical direction as the inner wall 18b of the lid-side holding portion 18b, which is the radially inner peripheral wall of the annularly formed lid-side holding portion 18. As shown in FIG. At the same time, the cutting thin portion 16 is provided at substantially the same position in the vertical direction as the main body side holding portion inner wall 17b, which is the radially inner peripheral wall of the main body side holding portion 17 formed in an annular shape.

FIGS. 8(a) and 8(b) show the state after cutting the cutting area 14a. The portion B in FIG. 8(a) is enlarged in FIG. 8(b). The cutout thinned portion 16 after the cutout region 14a is cut out forms the outer edge inner edge 14d. Thus, the inner edge 14d of the outer edge portion is formed at substantially the same vertical position as the inner wall 18b of the holding portion on the lid side, and substantially at the same vertical position as the inner wall 17b of the holding portion on the main body side.

With the above configuration, the wide-mouthed container 11 can be cut along the cut-off thin-walled portion 16 in the cutting region 14a, so that the inner lid 14 can be opened with the outer edge portion 14c left. The user can take out the content N by inserting his/her finger into the storage space 15 through the take-out opening with the cover member 13a open.

Therefore, after purchasing the product in which the contents N are stored in the wide-mouthed container 11, the user removes the lid unit 13 from the container body 12 once, removes the inner lid 14, and attaches the lid unit 13 again to the container body. The content N can be taken out by opening the take-out opening in the inner lid 14 without the necessity of combining with 12.例文帳に追加In this way, it is less troublesome for the user.

8, the outer edge portion 14c remains sandwiched between the lid-side gripping portion 18 and the main-body-side gripping portion 17 even after the opening of the inner lid 14 is opened, and the lid-side gripping portion lower surface 18a remains. and the upper surface 17a of the holding portion on the main body side. Therefore, no gap is formed in the place where the inner lid 14 was originally arranged. Further, there is no gap between the inner peripheral wall portion 13h of the lid member 13a and the inner wall 18b of the lid-side clamping portion of the folded portion 13f. As a result, the accommodation space 15 is not open to the atmosphere, and there is little possibility that a part of the contents N will be vaporized.

Moreover, since the inner lid 14 is made of an elastic material, the outer edge portion 14c is sandwiched between the clamping portions 17 and 18, and the outer edge portion 14c is compressed. try to inflate. As a result, the sealability between the outer edge portion 14c and the holding portions 17 and 18 is enhanced, so that the possibility that the storage space 15 communicates with the outside air and part of the contents N evaporates is reduced.

By screwing the lid unit 13, which sandwiches the outer edge 14c to the container body 12, to the container body 12, the user can adjust the tightening force to fasten the lid unit 13. can be done. As a result, the outer edge portion 14c formed of an elastic material can be appropriately compressed, so that optimum sealing performance can be obtained between the outer edge portion 14c and the holding portions 17 and 18. As shown in FIG. Thus, there is less risk that part of the content N will vaporize.

Since the locked portion 19 protrudes upward and is positioned inside the folded portion 13f, the lid-side clamping portion 18 locks the locked portion 19 radially outward, so that the outer edge portion 14c is clamped. The state sandwiched by the portions 17 and 18 can be maintained, and the sealing performance between the sandwiching portions 17 and 18 can be maintained. Thus, the risk of part of the contents N vaporizing is less.

Since the tab 14b extends above the cutting area 14a, the user can pick up the tab 14b with fingers and easily cut the cutting area 14a along the thin portion 16 for cutting. . In this way, the wide-mouthed container 11 can take out the content N from the accommodation space 15 with less trouble.

By providing the cutting thin portion 16 at substantially the same position as the body-side holding portion inner wall 17b and the lid-side holding portion inner wall 18b when viewed in the vertical direction, the cutting portion inner edge 14d and the outer edge portion inner edge 14d after cutting the cut area 14a are provided. , and the inner wall 17b of the holding portion on the main body side and the inner wall 18b of the holding portion on the lid side are arranged at substantially the same position when viewed in the vertical direction. Therefore, the inner edge 14d of the outer edge portion does not protrude radially inward from either of the inner walls 17b, 18b.

7 and 8, the inner wall 17b of the holding portion on the main body side and the inner wall 18b of the holding portion on the lid side are provided at substantially the same position when viewed in the vertical direction. However, if one of the inner walls 17b, 18b is arranged radially inwardly, the cut-out thin-walled portion 16 will be disposed on the inner side of the inner wall 17b, 18b. They are provided at substantially the same position when viewed in the vertical direction. Therefore, the inner edge 14d of the outer edge portion does not protrude radially inward from either of the inner walls 17b, 18b.

As a result, the user can take out the content N by inserting his or her finger into the outlet without the finger or finger being caught on the inner edge 14d of the outer edge portion. In this way, the wide-mouthed container 11 can take out the contents N from the accommodation space 15 with less trouble.

Since the lid member 13a is joined by the hinge 13c, the user can open the lid member 13a and take out the content N from the storage space 15 with one touch. In addition, since the cover member 13a does not separate from the body coupling part 13b even when the cover is opened, the user does not need to place the cover member 13a on a separate place. As a result, the wide-mouthed container 11 can take out the contents N from the storage space 15 with less trouble.

[Inner lid material]
The elastic material adopted as the material of the inner lid 14 is a material with a type D durometer hardness of 40 or more and less than 50 specified in JIS K7215 by Japanese Industrial Standards (JIS), or a material with a type D durometer hardness of 50 or more. and less than 60 materials can be used. Low-density polyethylene (LDPE) is an example of a material having a type D durometer hardness of 40 or more and less than 50 as defined in JIS K7215. Further, linear low-density polyethylene (LLDPE) is an example of a material having a type D durometer hardness of 50 or more and less than 60 specified in JIS K7215.

Among these, it is more preferable to use a material having a type D durometer hardness of 40 or more and less than 50 as the material of the inner lid 14 . When the material of the inner lid 14 is a material having a type D durometer hardness of less than 40, the inner lid 14 is too soft to have sufficient stiffness to be sandwiched between the clamping parts 17 and 18, so that it cannot be properly held at a predetermined position. is difficult. In addition, even if the user tries to cut off the cutting area 14a, it is stretched and cannot be cut well. Conversely, when the type D durometer hardness is 50 or more, the outer edge portion 14c is too hard and is compressed by the clamping portions 17 and 18, and it is difficult to expand due to the reaction, so sufficient sealing performance is not provided. Hard to get. In addition, the inner lid 14 is too hard, and it is not easy for the user to cut the cutting area 14a with fingers. Furthermore, the inner lid 14 is too hard, and it is difficult for it to slightly deform following the pinching portions 17 and 18 when pinched by the pinching portions 17 and 18 . There is a risk that it will not adhere appropriately to the

Therefore, especially when the material of the inner lid 14 has a type D durometer hardness of 40 or more and less than 50 specified in JIS K7215, the wide-mouthed container 11 can be manufactured more easily, and the storage space can be reduced. 15 is less likely to communicate with the outside air and partially evaporate the contents.

Moreover, when the material of the inner lid 14 is low-density polyethylene, the surface of the wide-mouthed container 11 is not large enough to store chemicals such as cosmetics and medicines in the storage space 15 because low-density polyethylene has high chemical resistance. These chemicals cause little chemical reaction and have a long life.

[Filling method]
The wide-mouthed container 11 of the present invention is filled with the content N as in the wide-mouthed container filling method S1000 shown in the flowchart of FIG. The wide mouth container filling method S1000 includes a preparation step S1100, a filling step S1200 and an assembly step S1300.

The preparation step S1100 includes a content preparation step S1110 for preparing the content N, a container body preparation step S1120 for preparing the container body 12, and a lid assembly preparation step S1130 for preparing the lid assembly 100. FIG. The lid assembly 100, as shown in the partial cross-sectional view of FIG. 10, refers to an assembly in which the lid unit 13 is fitted with the inner lid 14 and combined. At this time, an undercut 20 as shown in FIG. 7(b) is provided in advance on the body coupling portion 13b, and the outer edge portion 14c is fitted between the folded portion 13f and the undercut 20 in the vertical direction. The undercut 20 protrudes radially inward of the container main body 13 from the main body connecting portion 13b along the entire circumference of the main body connecting portion 13b. Therefore, the inner lid 14 is locked upward by the undercut 20 and does not come off downward from the lid body unit 13 . Further, since the inner diameter of the undercut 20 is slightly smaller than the outer diameter of the inner lid 14, the inner lid 14 can be detachably fitted into the lid unit 13 by slightly elastically deforming. When the inner lid 14 is combined with the lid unit 13, the outer edge portion 14c and the lid-side clamping portion 18 face each other in the vertical direction.

In each of the preparation steps S1110, S1120, and S1130, the operator who carries out the wide-mouthed container filling method S1000 may manufacture and prepare the contents N, the container body 12, or the lid assembly 100 by themselves, or It may be prepared by importing products manufactured elsewhere.

In the filling step S1200, the accommodation space 15 of the container body 12 prepared in the preparation step S1100 is filled with the contents N similarly prepared. Equipment used for filling may be the same as a part or all of equipment such as a filling device used for filling creamy cosmetics, medicines, etc. into conventional container bodies.

In the assembly step S1300, the lid assembly 100 is screwed onto the container body 12 so that the thread 12d and the thread groove 13i of the lid unit 13 are engaged. At this time, the outer edge portion 14 c of the inner lid 14 combined with the lid unit 13 in the lid assembly 100 is sandwiched between the body-side sandwiching portion 17 and the lid-side sandwiching portion 18 . As a result, the container body 12, the lid unit 13 and the lid 14 can be assembled vertically. The equipment used for assembly is part of equipment such as a capper used for screwing a conventional lid assembly in which a conventional inner lid is combined with a conventional lid unit to a conventional container body. or all may be the same.

By the way, many businesses that fill existing wide-mouthed containers with contents such as cream cosmetics and medicines have facilities for filling conventional container bodies with these contents. It also has provisions for threading a conventional lid assembly onto a conventional container body. Therefore, the wide-mouthed container filling method S1000 of the present invention is efficient because it can be adopted by many of the existing businesses as described above without making major changes to their facilities.

[Second embodiment]
A second embodiment of the present invention will be described with reference to FIG. 11(a) is a partial cross-sectional front view of the wide-mouthed container 21, which includes a container body 22 and a lid unit 23 arranged above the container body 22. As shown in FIG. A flat inner lid 24 is provided between the container body 22 and the lid unit 23 . The portion C of FIG. 11(a) is enlarged in FIG. 11(b). These figures show the state before the cutting area 24a of the inner cover 24 is cut.

The outer edge portion 24c of the inner lid 24 is vertically sandwiched between the body-side sandwiching portion 27 and the lid-side sandwiching portion 28, as shown in FIG. 11(b). At this time, as a result of the lid unit 23 being screwed into the container body 22, the clamping portions 27 and 28 press the outer edge portion 24c from above and below, and the upper surface 27a of the main body side clamping portion and the lower surface 28a of the lid body side clamping portion become outer edges. It adheres to both sides of the portion 24c. In addition, the outer edge portion 24c has a locked portion 29 protruding radially outward from the holding portions 27 and 28 on the entire circumference.

The locked portion 29 is positioned upwardly from a clamping portion gap G1, which is a vertical gap between the clamping portions 27 and 28 when the container body 22 and the lid unit 23 are screwed together as shown in the figure. It has a protruding upper annular portion 29a and a lower annular portion 29b protruding downward from the sandwiching portion gap G1. That is, the upper annular portion 29a of the locked portion 29 protrudes radially outward from the lid-side holding portion 28, and the lower annular portion 29b of the locked portion 29 extends radially outward from the body-side holding portion 27. Protrude in the direction.

In the screwed state, the upper annular portion 29a is fitted inside the folded portion 23f, and the lower annular portion 29b extends radially between the body side holding portion 27 and the body connecting portion 23b. It is fitted in the body-side clamping portion outer gap G2, which is a gap. In this state, even when the user lifts the tab 24b and cuts the cutting area 24a along the cutting thin portion 26, a radially inward force acts to pull the inner lid 24. The lid-side holding portion 18 can hold the upper annular portion 29a radially outward, and the body-side holding portion 27 can hold the lower annular portion 29b radially outward. . Since the gripping portions 27 and 28 engage the engaged portion 29 projecting upward and downward, the outer edge portion 24c is kept in the same position as before the start of cutting, resisting the pulling force. can keep

Further, an undercut 30 is provided in the body coupling portion 23b, and the outer edge portion 24c is fitted between the folded portion 23f and the undercut 30 in the vertical direction. The undercut 30 protrudes radially inward of the container main body portion 23 from the main body joint portion 23b along the entire circumference of the main body joint portion 23b. Therefore, the inner lid 24 is locked upward by the undercut 30 and does not come off downward from the lid body unit 23 . Since the inner diameter of the undercut 30 is slightly smaller than the outer diameter of the inner lid 24, the inner lid 24 can be detachably fitted into the lid unit 23 by slightly elastically deforming.

Other configurations are common to the first embodiment.

With the above configuration, the outer edge portion 24c can maintain a state of being sandwiched between the sandwiching portions 27 and 28, and the sealing performance between the sandwiching portions 27 and 28 can be maintained. Thus, the risk of part of the contents N vaporizing is less.

Although the embodiments of the present invention have been exemplified above, the present invention is not limited to these embodiments, and various modifications can be made without departing from the scope of the present invention.

For example, the wide-mouthed containers 11 and 21 may have a shape other than a substantially cylindrical shape, and may have a shape such as a prism, a cone, a truncated cone, etc., as long as the contents N can be easily filled and the user can take it out. .

Moreover, the lid members 13a and 23a may be joined to the body connecting portions 13b and 23b by means other than hinges, so that the lid members 13a and 23a can be opened and closed without difficulty, and the wide-mouthed containers 11 and 21 can be securely held. As long as it can be sealed, it may be joined by, for example, a screw method, fitting, or the like.

If the inner lids 14, 24 do not slip out of the lid units 13, 23 without providing the undercuts 20, 30 in the main body connecting portions 13b, 23b, for example, the inner lids 14, 24 can be attached to the lid unit 13. , 23 may be combined.

The locked portions 19 and 29 of the outer edge portions 14c and 24c protrude downward only if the body-side holding portions 17 and 27 can reliably lock the locked portions 19 and 29 radially outward. It may be configured as

The locked portions 19, 29 do not necessarily protrude radially outward from the main body-side holding portions 17, 27 or the lid-side holding portions 18, 28 all around the inner lids 14, 24, and can be secured radially outward. If the inner lids 14, 24 are locked to the inner lids 14, 24, only a part of the periphery may protrude.

The lid assembly preparation step S1130 does not necessarily have to be performed before the filling step S1200. It may be performed at the same time as the filling step S1200 or after the filling step S1200.

INDUSTRIAL APPLICABILITY The present invention can be applied to a wide-mouthed container for filling contents such as cream cosmetics and medicines, and a filling method for filling such contents into a wide-mouthed container.

11, 21 Wide-mouthed containers 12, 22 Container main bodies 13, 23 Lid units 13a, 23a Lid members 13b, 23b Main body joints 14, 24 Inner lids 14a, 24a Cutting regions 14b, 24b Tabs 14c, 24c Outer edge 15 Storage space 16 , 26 cut-off thin-walled portions 17, 27 body-side clamping portion 17b body-side clamping portion inner walls 18, 28 lid-side clamping portion 18b lid-side clamping portion inner walls 19, 29 engaged portions 20, 30 undercut 100 lid assembly

Claims (10)

a container body capable of accommodating contents in an accommodation space;
a lid unit that is combined with the container body and has a lid member that closes an opening above the housing space in an openable and closable manner;
A substantially flat plate-shaped center which is formed of an elastic material and whose outer edge portion is vertically sandwiched between a lid-side gripping portion provided downward on the lid unit and a body-side gripping portion provided upward on the container body. a lid and
A wide-mouthed container, wherein the inner lid is provided with a cut-off thin-walled portion for cutting the inner side of the outer edge portion.
The wide-mouthed container according to claim 1, wherein the lid unit is screwed onto the container body.
the outer edge portion has a portion to be locked that partially or entirely protrudes from the lid-side clamping portion outward with respect to the center of the inner lid;
The wide-mouthed container according to claim 1 or 2, wherein the locked portion protrudes upward and is locked outward by the lid-side holding portion.
the outer edge portion has a portion to be locked that protrudes outward from the main body-side holding portion toward the center of the inner lid;
The wide-mouthed container according to claim 1 or 2, wherein the locked portion protrudes downward and is locked outward by the body-side holding portion.
The wide-mouthed container according to claim 3 or 4, wherein a tab extends above a cut-off area cut along the cut-off thin-walled portion of the inner cover.
The thin-walled portion for cutting comprises an inner wall of the lid-side clamping portion, which is a peripheral wall of the lid-side clamping portion facing inward with respect to the center, and an inner wall of the main body-side clamping portion, which is a peripheral wall of the main body-side clamping portion which faces inward. 6. The wide-mouthed container according to claim 5, wherein the wide-mouthed container is provided at substantially the same position in the vertical direction as the inner wall disposed closer to the center.
The wide-mouthed container according to any one of claims 1 to 6, wherein the elastic material has a type D durometer hardness of 40 or more and less than 50 as defined in JIS K7215.
8. The jar of claim 7, wherein said resilient material is low density polyethylene.
The wide-mouthed container according to any one of claims 1 to 8, wherein the lid member is hinged to other parts of the lid unit.
a container body preparation step of preparing a content and a container body capable of accommodating the content in an accommodation space;
a lid body unit having a lid member that can be screwed into the container body and configured to openably and closably close an opening positioned above the accommodation space when combined with the container body; The outer edge portion and the lid-side clamping portion provided downward in the lid unit face each other in the vertical direction. a lid assembly preparation step of preparing a lid assembly combined to
a filling step of filling the content in the accommodation space;
The outer edge portion is sandwiched between the lid-side clamping portion and a main-body-side clamping portion provided facing upward on the container body, and the lid assembly is screwed to the container body, and the container body is and an assembling step of vertically assembling the inner lid and the lid unit.

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