WO2019044451A1

WO2019044451A1 - Hinged cap and container

Info

Publication number: WO2019044451A1
Application number: PCT/JP2018/029957
Authority: WO
Inventors: 博也森田; 大亮齋藤; 阿部　和也
Original assignee: 大和製罐株式会社
Priority date: 2017-08-31
Filing date: 2018-08-09
Publication date: 2019-03-07
Also published as: KR20200047528A; KR102617706B1; JP2019043577A; JP7094672B2; TW201927647A; TWI767037B; CN111065584A

Abstract

This hinged cap (11) has: cap body (21) having a cylinder section (32) and a sealing ring (33) which is formed integrally with the cylinder section (32), extends downward from the cylinder section (32) with a gap provided between the sealing ring (33) and the inner peripheral surface of the cylinder section (32), and has a curved chamfered section (33d) formed on the inner peripheral surface of the lower end of the sealing ring (33), the cap body (21) being adapted to be mounted to a mouth (10a) formed at the upper end of a closed-end circular cylindrical container body (10); a cover (22) having a top plate (41) which covers the cap body (21) and also having an annular ridge (43) which is provided to the top plate (41) and which is in close contact with the inner peripheral surface of the sealing ring (33); and a hinge (23) formed integrally with the cap body (21) and the cover (22) and connecting the cap body (21) and the cover (22).

Description

Hinged cap and container

The present invention relates to a hinged cap and a container.

As a container for containing a highly viscous cosmetic, a resin container having a wide opening is used so that the accommodated cosmetic can be taken out with a finger. Such a container uses a bottomed cylindrical container body and a hinged cap attached to the mouth of the container body and hingedly connecting an opening and a lid closing the opening. Such a hinged cap has a problem that the sealing performance is inferior to a screw cap in which an opening formed with a male screw is formed by a lid having an internal thread.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. 2007-204104, the lower surface of the top wall of the cap main body and the inner peripheral surface of the opening are formed of an elastic material such as an elastomer as a hinge type cap for improving sealing performance. There is known a technique of covering with a ring-shaped member.

However, the above-mentioned hinged cap has a problem that the cost increases because the ring-shaped member for improving the sealing performance is formed of a material different from that of the cap body. When taking out the contents from the container, the contents are covered with the fingers from the opening, and the contents attached to the fingers are adjusted to the appropriate amount, etc. Contact the part to reduce the content attached to the fingers. However, if the ring-shaped member is formed of the same material as the cap material, the feel is not suitable because it is a relatively hard material, and fingers are caught on the ring-shaped member to take out the contents from the container. There is a problem that it is difficult.

Therefore, it is an object of the present invention to provide a hinged cap and a container which can be manufactured at low cost and improve the sealing property while being excellent in the extractability of contents.

According to one aspect of the present invention, the hinge-type cap is integrally formed with the cylindrical portion and the cylindrical portion, and extends downward from the cylindrical portion at a distance from the inner peripheral surface of the cylindrical portion. A cap body attached to a mouth formed at the upper end of a bottomed cylindrical container body having a sealing ring in which a curved chamfer is formed on the inner peripheral surface of the lower end, and the cap body A lid portion having a cover, and a lid portion provided on the top plate portion and having an annular protrusion in close contact with the inner circumferential surface of the sealing ring, and integrally formed with the cap body and the lid portion; And a hinge for connecting the lid.

According to one aspect of the invention, the container comprises a bottomed cylindrically shaped container body having a mouth at its upper end, and the hinged cap described above.

INDUSTRIAL APPLICABILITY The present invention can provide a hinged cap and a container which can be manufactured at low cost, have improved sealing performance, and have excellent removal of contents.

FIG. 1 is a cross-sectional view showing the configuration of a container according to an embodiment of the present invention. FIG. 2 is a plan view showing the configuration of a hinged cap used in the same container. FIG. 3 is a cross-sectional view showing the configuration of the same hinged cap. FIG. 4 is an enlarged cross-sectional view of the configuration of the sealing ring of the hinged cap.

Hereinafter, a container 1 according to an embodiment of the present invention will be described using FIGS. 1 to 4.
FIG. 1 is a cross-sectional view showing the configuration of a container 1 according to an embodiment of the present invention, FIGS. 2 and 3 are views showing the configuration of a hinged cap 11 used for the container 1 in plan and section, and FIG. It is sectional drawing which expands and shows the structure of the sealing ring 33 of the formula cap 11. As shown in FIG.

As shown in FIG. 1, the container 1 comprises a container body 10 and a hinged cap 11. The container 1 contains a liquid, gel or cream or the like having a predetermined viscosity, for example, highly viscous cosmetics and medicines. The container 1 is a so-called jar container. Here, as a specific example of the article having a predetermined viscosity, a moisturizing cream to be applied to a finger, a face or the like can be mentioned.

Such a container 1 is used with the container body 10 in the lower position and the hinged cap 11 in the upper position. In the case of describing the container 1 and the hinged cap 11 in the present embodiment, as shown in FIG. 1, the container main body 10 side is described as the lower side and the hinged cap 11 side as the upper side.

The container main body 10 is formed in a bottomed cylindrical shape. The container main body 10 has an opening 10a formed in an aperture that allows the user to insert a finger, in other words, a wide opening, and an external thread 10b formed on the outer peripheral surface of the opening 10a. The container main body 10 including the opening 10a and the male screw 10b is a resin molded product.

As shown in FIGS. 1 to 3, the hinged cap 11 comprises a cap body 21 attached to the mouth 10 a of the container body 10, a lid 22 for opening and closing the cap body 21, a cap body 21 and a lid 22. And a hinge part 23 to be connected. The hinged cap 11 is attached to the container body 10 and constitutes a wide opening having an inner diameter equal to or slightly smaller than the inner diameter of the container body 10. The hinge-type cap 11 is a resin molded product in which the cap body 21, the lid 22 and the hinge 23 are integrally molded using the same resin material using a mold.

The cap main body 21 seals the space between the cap body 21 and the mouth 10 a so that the contents do not leak to the outside from the space between the cap 10 and the mouth 10 a of the container body 10, and is attached to the mouth 10 a. The cap body 21 has an opening 21a formed in an aperture for allowing a user to insert a finger.

Specifically, the cap body 21 includes an outer cylindrical portion 31 fixed to the opening 10 a, an inner cylindrical portion 32 integrally connected to the inner peripheral portion of the upper end of the outer cylindrical portion 31, and the inner cylindrical portion 32. And a sealing ring 33 integrally formed on the inner periphery of the upper end. In the cap body 21, the inner cylindrical portion 32 constitutes the opening 21a, and the opening formed radially inward from the inner peripheral surface of the sealing ring 33 formed in the inner cylindrical portion 32 takes out the contents. To form an opening 21a.

The outer cylindrical portion 31 is formed in a cylindrical shape and has an inner diameter which is the same as or slightly larger than the outer diameter of the opening 10a. The outer cylindrical portion 31 has a female screw portion 31 a screwed with the male screw portion 10 b of the container main body 10 on the inner peripheral surface. The outer cylindrical portion 31, that is, the cap body 21 is fixed to the container body 10 by screwing the female screw portion 31 a with the male screw portion 10 b.

The inner cylinder portion 32 is formed in a cylindrical shape. The inner cylinder portion 32 is integrally formed with the outer cylinder portion 31 on the inner peripheral surface of the upper end of the outer cylinder portion 31. The inner cylindrical portion 32 is configured to project upward at least from the inner peripheral surface of the upper end of the outer cylindrical portion 31. The inner cylindrical portion 32 has an outer diameter smaller than that of the outer cylindrical portion 31. In addition, the inner cylindrical portion 32 extends downward below the upper end of the outer cylindrical portion 31, and when the outer cylindrical portion 31 is attached to the opening 10a, the annular lower projection 32a closely contacts the upper end of the opening 10a. Have. Further, the inner cylindrical portion 32 is a lid on the outer peripheral surface on the opposite side across the centers of the hinge portion 23 and the cap main body 21, in other words, on the outer peripheral surface at a symmetrical position with respect to the hinge portion 23 centered on the cap main body 21. It has an engaging projection 32 b which engages with the portion 22.

The sealing ring 33 is integrally formed on the inner peripheral surface of the upper end of the inner cylindrical portion 32 with the inner cylindrical portion 32. The sealing ring 33 is formed in a ring shape extending downward from the upper end of the inner cylindrical portion 32 so as to be separated from the inner circumferential surface of the inner cylindrical portion 32. The inner periphery of the sealing ring 33 is in close contact with an annular protrusion 43 of the lid 22 described later.

Specifically, as shown in FIG. 4, the sealing ring 33 includes a continuous portion 33 a extending radially from the inner peripheral surface of the upper end of the inner cylindrical portion 32, and a seal portion 33 b extending downward from the continuous portion 33 a And. Further, the inner peripheral surface of the upper end portion of the sealing ring 33, in other words, the inner peripheral surface of the upper end of the sealing portion 33b, in other words, the inner peripheral surface constituting the flange portion of the continuous portion 33a and the sealing portion 33b is the sealing ring It comprises an annular inclined surface inclined with respect to the axial direction of 33. That is, the sealing ring 33 has a chamfered portion 33c with an annular inclined surface at the ridge portion of the continuous portion 33a and the sealing portion 33b.

Further, the inner peripheral surface of the lower end portion of the sealing ring 33, in other words, the inner peripheral surface of the lower end of the sealing portion 33b, is formed in an annular curved surface. That is, the sealing ring 33 has a curved surface-shaped chamfered portion 33 d on the inner peripheral surface of the lower end portion. Furthermore, in other words, the vertical ring shape of the inner peripheral surface of the lower end portion of the sealing ring 33 is formed in an arc shape.

As shown in FIG. 4, the outer diameter of the sealing ring 33 gradually decreases from the lower end to the middle, and gradually increases from the middle to the upper end. In other words, the sealing ring 33 has an annular inclined surface in which the shape of the outer peripheral surface from the lower end to the middle inclines inward in the radial direction toward the upper side, and from the middle to the upper end The shape of the outer peripheral surface of the has an annular inclined surface which is inclined radially outward in the upward direction.

That is, the gap formed between the inner peripheral surface of the inner cylindrical portion 32 and the outer peripheral surface of the sealing ring 33 is the largest in the middle of the sealing ring 33, and the upper end of the sealing ring 33 and the gap in the middle The gap at the lower end is configured to be small.

The lid portion 22 includes a top plate portion 41, an outer peripheral wall portion 42 depending from the outer peripheral edge of the top plate portion 41, and an annular protrusion 43 depending from the inner surface facing the cap main body 21 of the top plate portion 41. There is.

The top plate portion 41 is formed in a disk shape. The top plate portion 41 covers the upper surface of the cap main body 21 including the opening 21 a. The top plate portion 41 is on the outer peripheral surface on the opposite side across the centers of the hinge portion 23 and the cap main body 21, in other words, on the outer peripheral surface at a symmetrical position to the hinge portion 23 centered on the cap main body 21. It has a finger hooking portion 41a for hooking a finger.

The outer peripheral wall portion 42 is formed such that the inner diameter is larger than the outer diameter of the inner cylindrical portion 32, and the outer peripheral surface on the opposite side across the centers of the hinge portion 23 and the cap main body 21; The hinge portion 23 has an engaged protrusion 42a engaged with the engaging protrusion 32b on an outer peripheral surface at a symmetrical position.

The annular protrusion 43 is a cylindrical protrusion which is disposed coaxially with the center of the top plate portion 41 and protrudes from the inner surface of the top plate portion 41. The outer diameter of the annular projection 43 is set to be slightly larger than the inner diameter of the sealing ring 33, and is in close contact with the inner circumferential surface of the sealing portion 33 b of the sealing ring 33. That is, the sealing ring 33 and the annular projection 43 are bent and deformed relative to each other in a state in which the engaged projection 42a of the outer peripheral wall 42 is engaged with the engaging projection 32b, that is, the lid 22 is closed. It is configured in close proximity.

The hinge portion 23 is integrally formed with the cap body 21 and the lid portion 22. The hinge portion 23 connects the upper outer peripheral end of the outer cylindrical portion 31 of the cap main body 21 and the lower outer peripheral end of the outer peripheral wall portion 42 of the lid portion 22. The hinge portion 23 rotatably supports the lid portion 22 with respect to the cap main body 21.

According to the container 1 having the hinge-type cap 11 configured as described above, the sealing ring 33 extending at a distance from the inner peripheral surface of the inner cylindrical portion 32 of the cap main body 21 makes it possible to Sealing property with the annular protrusion 43 can be improved. Thereby, since the hinged cap 11 can be molded with the same material, the manufacturing cost can be reduced as compared with the configuration in which the conventional sealing ring is made different from the configuration of other hinged caps.

In addition, the hinged cap 11 has a circular arc in the vertical cross-sectional shape of the inner peripheral surface of the lower end portion of the sealing ring 33 which the finger touches when taking out the contents, so that the user's finger is attached to the lower end portion of the sealing ring 33 When touched, the touch can be improved. For example, when taking out the contents from the container main body 10, etc., the contents are squeezed from the opening 21a with a finger and then the squeezed contents are made into the sealing ring 33 in order to make the contents attached to the fingers an appropriate amount. It may be brought into contact with a part of the lower end to adjust the amount of contents attached to the fingers. In addition, the remaining amount of the content decreases, and the finger contacts a part of the lower end portion of the sealing ring 33 when the content is covered with the finger along the side wall surface of the container main body 10 and taken out from the opening 21a. Sometimes. In such a case, providing the curved surface chamfered portion 33d at the lower end portion of the sealing ring 33 makes the touch suitable, and prevents the fingers from being caught on the sealing ring 33 by the annular curved surface, and the contents The extractability of the As a result, the hinged cap 11 is excellent in the extractability of the contents.

In addition, the sealing ring 33 has an outer diameter that gradually decreases from the lower end to the middle and gradually increases from the middle to the upper end, so the outer peripheral surface of the inner cylindrical portion 32 and the inner peripheral surface of the sealing ring 33 Is small at the lower end side of the sealing ring 33. For this reason, it can suppress that a content intrudes into the said clearance gap, as a result, the loss of the content at the time of use can be reduced.

Further, the hinge-type cap 11 is a molded product manufactured by a mold, but the sealing ring 33 has an undercut shape by minimizing the outer diameter of the sealing ring 33 in the middle part. Therefore, when the mold is released from the gap between the inner cylindrical portion 32 and the sealing ring 33, the mold presses the sealing ring 33 radially inward. At the time of mold release, since the sealing ring 33 is pressed radially inward, the sealing ring 33 is deformed in a direction in which the sealing ring 33 is in close contact with the annular projection 43 of the lid 22. That is, when the mold is released, the sealing ring 33 is deformed inward in the radial direction by the undercut shape of its own, so that the inner diameter of the sealing ring 33 is corrected by the mold so that it has a predetermined inner diameter. Thus, the sealing ring 33 can be in close contact with the annular projection 43 reliably.

As described above, according to the container 1 having the hinge-type cap 11, it can be manufactured at low cost, and it is excellent in the extractability of the content while improving the sealing property.

The present invention is not limited to the above embodiment. For example, in the example described above, the configuration in which the hinged cap 11 is fixed to the container body 10 by screwing the male screw portion 10b of the container body 10 and the female screw portion 31a of the hinged cap 11 has been described. It is not limited to. For example, the container 1 may have a configuration in which the hinged cap 11 is fixed to the container body 10 by fitting.

That is, the present invention is not limited to the above embodiment, and can be variously modified in the implementation stage without departing from the scope of the invention. In addition, the embodiments may be implemented in combination as appropriate, in which case the combined effect is obtained. Furthermore, various inventions are included in the above-described embodiment, and various inventions can be extracted by a combination selected from a plurality of disclosed configuration requirements. For example, even if some configuration requirements are deleted from all the configuration requirements shown in the embodiment, the problem can be solved, and if an effect is obtained, a configuration from which this configuration requirement is removed can be extracted as the invention.

Claims

A cylindrical portion, and integrally formed on the cylindrical portion, extending downward from the cylindrical portion at a distance from the inner peripheral surface of the cylindrical portion, and a chamfered portion having a curved shape on the inner peripheral surface of the lower end portion A cap body attached to a mouth formed at the upper end of a bottomed cylindrical container body having a sealing ring formed thereon;
A top plate portion covering the cap body, and a lid portion provided on the top plate portion and having an annular protrusion in close contact with the inner circumferential surface of the sealing ring;
A hinge formed integrally with the cap body and the lid and connecting the cap body and the lid;
With hinged cap.
The hinged cap according to claim 1, wherein the outer diameter of the lower end of the sealing ring is larger than the outer diameter of the middle portion.
A bottomed cylindrical container body having a mouth at its upper end;
A hinged cap according to claim 1 or 2;
Container with