TW201927647A - Hinged cap and container - Google Patents

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 lid and container

The present invention relates to hinged lids and containers.

As a container for storing a highly viscous cosmetic, a resin container having a wide-mouth opening is used to remove the contained cosmetic with a finger. Such a container includes a bottomed cylindrical container body, and a hinged lid formed by connecting a wide-mouth opening portion attached to a mouth portion of the container body and a lid for closing the opening portion with a hinge. Such a hinged lid has a problem that the sealing performance is inferior to that of a screw-on lid that closes an opening portion in which an external thread is formed with a lid having an internal thread.

Therefore, as disclosed in Japanese Patent Application Laid-Open No. 2007-204104, as a hinged lid with improved sealing, the lower surface of the top wall of the lid body and the inner peripheral surface of the opening are formed of an elastic material such as an elastomer. Techniques for covering ring members are known.

However, the above-mentioned hinged lid has a problem that the cost is increased because the ring-shaped member for improving the sealing performance is formed of a material different from the lid body. In addition, when the content is to be taken out from the container, after the content is dug out with the finger from the opening, the content to be adhered to the finger is adjusted to allow the content to come into contact with the inner peripheral surface of the opening. And reduce the amount of content attached to the finger. However, if the ring-shaped member is made of the same material as the lid material, it is hard to touch because it is a harder material. In addition, there are also fingers that are caught by the ring-shaped member and it is not easy to remove the contents from the container. problem.

Therefore, an object of the present invention is to provide a hinged lid and a container that can be manufactured at low cost, can improve the sealing property, and have excellent content extraction properties.

According to an aspect of the present invention, the hinged lid is provided with a lid main body, a lid portion, and a hinge portion. The lid main system includes a cylinder portion and a seal ring, and is installed at a mouth formed on the upper end of the bottomed cylindrical container body. The sealing ring is integrally formed with the cylindrical portion, extends downward from the cylindrical portion with an interval from the inner peripheral surface of the cylindrical portion, and has a curved chamfered portion formed on the inner peripheral surface of the lower end portion. The cover portion has a top plate portion and a ring-shaped protrusion, the top plate portion covers the cover body, the ring-shaped protrusion is provided on the top plate portion and is in close contact with the inner peripheral surface of the seal ring; the hinge portion is in contact with the foregoing The cover body and the cover portion are integrally formed to connect the cover body and the cover portion.

According to one aspect of the present invention, a container includes a bottomed cylindrical container body having a mouth portion at an upper end, and the hinged lid.

The present invention can provide a hinged lid and container, which can be manufactured at low cost, can improve the sealing property, and has excellent content take-out property.

Hereinafter, a container 1 according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4. FIG. 1 is a sectional view showing the structure of a container 1 according to an embodiment of the present invention. FIGS. 2 and 3 are a plan view and a sectional view showing the structure of a hinged lid 11 used in the container 1. FIG. 4 is a hinged lid The enlarged cross-sectional view of the structure of the seal ring 33 of 11 is shown.

As shown in FIG. 1, the container 1 includes a container body 10 and a hinged lid 11. The container 1 stores liquid, gel, or cream-like articles having a predetermined viscosity, such as cosmetics, medicines, and the like having high viscosity. The container 1 is a so-called jar container. Here, as a specific example of an article having a predetermined viscosity, a moisturizing cream for applying to a finger, a face, or the like.

Such a container 1 is used in a posture in which the container body 10 is positioned below and the hinged lid 11 is positioned above. In this embodiment, the case of the container 1 and the hinged lid 11 will be described. As shown in FIG. 1, the description will be made with the container main body 10 side as the lower side and the hinged lid 11 side as the upper side.

The container body 10 is configured in a bottomed cylindrical shape. The container main body 10 includes a mouth portion 10a and a male screw portion 10b. The diameter of the mouth portion 10a is formed so that a user's finger can be inserted, in other words, a wide mouth. The male screw portion 10b is formed on the outer peripheral surface of the mouth portion 10a. The container body 10 including the mouth portion 10a and the male screw portion 10b is a resin molded product.

As shown in FIGS. 1 to 3, the hinged lid 11 includes a lid body 21 attached to the mouth portion 10 a of the container body 10, a lid portion 22 for opening and closing the lid body 21, and a lid body 21 for connection. And the hinge portion 23 of the cover portion 22. The hinged lid 11 is attached to the container main body 10 and constitutes a wide-mouth opening having an internal diameter that is the same as or slightly smaller than the internal diameter of the container main body 10. The hinged lid 11 is a resin molded product in which the lid main body 21, the lid portion 22, and the hinge portion 23 are integrally molded using the same resin material using a mold.

The lid body 21 is attached to the mouth portion 10a, and is sealed between the lid body 21 and the mouth portion 10a in order to prevent the contents from leaking from between the lid body 21 and the mouth portion 10a of the container body 10. The cover main body 21 has an opening portion 21 a having a diameter such that a finger of a user can be inserted therein.

Specifically, the cover main body 21 includes a cylindrical portion 31 fixed to the outer portion of the mouth portion 10a, an inner cylindrical portion 32 integrally connected to the inner peripheral portion of the upper end of the outer cylindrical portion 31, and an upper end of the inner cylindrical portion 32. The inner peripheral portion is formed as an integrated seal ring 33. In the cover main body 21, the inner tube portion 32 constitutes an opening portion 21a. Specifically, the opening portion formed in the inner cylindrical portion 32 on the inner side in the radial direction from the inner peripheral surface of the seal ring 33 is an opening portion 21 a for taking out the contents.

The outer tube portion 31 is formed in a cylindrical shape and has an inner diameter that is the same as or slightly larger than the outer diameter of the mouth portion 10a. The inner peripheral surface of the outer cylindrical portion 31 includes an internally threaded portion 31 a that is screwed into the externally threaded portion 10 b of the container body 10. By screwing the internally threaded portion 31 a and the externally threaded portion 10 b, the external cylinder portion 31, that is, the lid body 21 is fixed to the container body 10.

The inner tube portion 32 is formed in a cylindrical shape. The inner tube portion 32 is formed integrally with the outer tube portion 31 on the inner peripheral surface at the upper end of the outer tube portion 31. The inner tube portion 32 is configured to protrude upward from at least the inner peripheral surface of the upper end of the outer tube portion 31. The outer diameter of the inner tube portion 32 is smaller than the outer diameter of the outer tube portion 31. In addition, the inner tube portion 32 has a ring-shaped lower projection portion 32a, and the lower projection portion 32a extends below the upper end of the outer tube portion 31. When the outer tube portion 31 is mounted on the mouth portion 10a, the outer tube portion 31 is connected to the upper end of the mouth portion 10a. adaptation. The inner tube portion 32 has an outer peripheral surface on the side opposite to the hinge portion 23 across the center of the cover main body 21, in other words, an outer peripheral surface having a symmetrical position with the hinge portion 23 centered on the cover main body 21 and has The engaging protrusion 32b to which the cover portion 22 is engaged.

The seal ring 33 is formed integrally with the inner cylindrical portion 32 on the inner peripheral surface of the upper end of the inner cylindrical portion 32. The seal 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 peripheral surface of the inner cylindrical portion 32. The inner peripheral surface of the seal ring 33 is in close contact with an annular protrusion 43 described later on the cover portion 22.

Specifically, as shown in FIG. 4, the seal ring 33 includes a continuous portion 33 a extending in the radial direction from the inner peripheral surface of the upper end of the inner tube portion 32, and a sealing portion 33 b extending downward from the continuous portion 33 a. In addition, the inner peripheral surface of the upper end portion of the seal ring 33, in other words, the inner peripheral surface of the upper end of the seal portion 33b, or in other words, the inner peripheral surface of the edge portion constituting the continuous portion 33a and the seal portion 33b The axial direction of 33 is formed by a circular inclined surface inclined. That is, the seal ring 33 has a chamfered portion 33c formed by a ring-shaped inclined surface at the edge portion of the continuous portion 33a and the seal portion 33b.

In addition, the inner peripheral surface of the lower end portion of the seal ring 33, in other words, the inner peripheral surface of the lower end portion of the seal portion 33b, is formed into an annular curved surface. That is, the seal ring 33 is a chamfered portion 33d having a curved surface shape on the inner peripheral surface of the lower end portion. In other words, the longitudinal sectional shape of the inner peripheral surface of the lower end portion of the seal ring 33 is formed into an arc shape.

As shown in FIG. 4, the outer diameter of the seal ring 33 gradually decreases from the lower end to the midway portion, and gradually increases from the midway portion to the upper end. In other words, the shape of the seal ring 33 from the lower end portion to the outer peripheral surface of the halfway portion is a circular ring-shaped inclined surface that is inclined upward toward the inside in the radial direction, and the shape from the middle portion to the outer peripheral surface of the upper end portion is It has a circular ring-shaped inclined surface inclined upward toward the outside in the radial direction.

That is, the gap generated between the inner peripheral surface of the inner cylindrical portion 32 and the outer peripheral surface of the seal ring 33 is the largest at the midway portion of the seal ring 33, and is larger at the upper end of the seal ring 33 than the gap at the midway portion. And the gap at the lower end is smaller.

The cover portion 22 includes a top plate portion 41, an outer peripheral wall portion 42 suspended from an outer peripheral edge of the top plate portion 41, and an annular protrusion 43 suspended from an inner surface of the top plate portion 41 opposite to the cover main body 21.

The top plate portion 41 is formed in a disc shape. The top plate portion 41 covers the upper surface of the cover main body 21 including the opening portion 21 a. The top plate portion 41 is an outer peripheral surface on the side opposite to the hinge portion 23 across the center of the cover main body 21, in other words, an outer peripheral surface having the cover main body 21 as a center and a symmetrical position with the hinge portion 23, and has a Finger hooking part 41a.

The inner diameter of the outer peripheral wall portion 42 is formed to be larger than the outer diameter of the inner cylindrical portion 32, and the outer peripheral surface on the side opposite to the hinge portion 23 across the center of the cover main body 21, in other words, the center The hinge portion 23 has an outer peripheral surface in a symmetrical position, and has an engaged protrusion 42a that is engaged with the engaging protrusion 32b.

The annular protrusion 43 is a coaxial protrusion arranged coaxially with the center of the top plate portion 41 and is a cylindrical protrusion protruding from the inner surface of the top plate portion 41. The outer diameter of the ring-shaped protrusion 43 is set to be slightly larger than the inner diameter of the seal ring 33, and thereby, it comes into close contact with the inner peripheral surface of the seal portion 33b of the seal ring 33. That is, in a state where the engaged protrusion 42a and the engagement protrusion 32b of the outer peripheral wall portion 42 are engaged, that is, the lid portion 22 is closed, the seal ring 33 and the annular protrusion 43 are configured to flex each other. Deformed and tightly shaped.

The hinge portion 23 is formed integrally with the cover body 21 and the cover portion 22. The hinge portion 23 connects an upper outer peripheral end of the outer cylindrical portion 31 of the cover main body 21 and a lower outer peripheral end of the outer peripheral wall portion 42 of the cover portion 22. The hinge portion 23 supports the lid portion 22 so as to be rotatable relative to the lid body 21.

According to the container 1 having the hinged lid 11 having such a configuration, the seal ring 33 extending from the inner peripheral surface of the inner tube portion 32 of the lid main body 21 at a distance can be looped with the lid portion 22 The sealing property of the protrusion 43 is improved. Thereby, since the hinged lid 11 can be formed from the same material, compared with the conventional seal ring, the material is different from other components of the hinged lid, and the manufacturing cost can be reduced.

In addition, the hinged cover 11 has a longitudinal cross-sectional shape of the inner peripheral surface of the lower end portion of the seal ring 33 that allows the fingers to contact when taking out the contents, and allows the user's fingers to contact the lower end portion of the seal ring 33 As a result, the touch of the fingers can be improved. For example, when the content is to be taken out from the container body 10, etc., after the content is dug out with the finger from the opening 21a, the content may be sealed with the excavated content in order to make the content adhere to the finger, etc. A part of the lower end portion of the ring 33 is brought into contact, thereby adjusting the amount of the content attached to the finger. In addition, when the remaining amount of the contents becomes small and the contents are dug out with the fingers so as to follow the side wall surface of the container body 10 and taken out from the opening portion 21 a, the fingers may come into contact with a part of the lower end portion of the seal ring 33. At this time, a curved chamfered portion 33d is provided at the lower end portion of the seal ring 33, so that the touch feeling can be improved, and the ring-shaped curved surface can prevent fingers from being caught by the seal ring 33, and the content can be taken out. improve. As a result, the hinged lid 11 has excellent content take-out property.

In addition, the outer diameter of the seal ring 33 gradually decreases from the lower end to the midway portion and gradually increases from the midway portion to the upper end. Therefore, the gap between the outer peripheral surface of the inner tube portion 32 and the inner peripheral surface of the seal ring 33 is in the seal ring 33. The lower side becomes smaller. Therefore, the content can be prevented from entering the gap, and as a result, the loss of the content can be reduced during use.

When the hinged lid 11 is a molded product manufactured by a mold, the seal ring 33 is formed in an undercut shape because the outer diameter of the seal ring 33 is minimized in the middle portion. Therefore, when the mold is released from the gap between the inner tube portion 32 and the seal ring 33, the mold presses the seal ring 33 inward in the radial direction. At the time of demolding, since the seal ring 33 is pressed inward in the radial direction, the seal ring 33 is deformed in a direction closer to the annular protrusion 43 of the cover portion 22. That is, when the mold is to be demolded, the seal ring 33 is deformed toward the inside in the radial direction by using its own concave shape, and the inner diameter of the seal ring 33 is corrected to a predetermined inner diameter by the mold. Therefore, the seal ring 33 and the ring can be changed. The shape-like protrusions 43 are firmly adhered.

As described above, the container 1 having the hinged lid 11 can be manufactured at low cost, can improve the sealing property, and is excellent in taking out the contents.

The present invention is not limited to the embodiments described above. For example, in the structure described in the above example, the hinged lid 11 is fixed to the container body 10 by screwing the externally threaded portion 10 b of the container body 10 and the internally threaded portion 31 a of the hinged cover 11, but it is not Limited to this. For example, the container 1 may be configured such that the hinged lid 11 is fixed to the container body 10 by fitting.

That is, the present invention is not limited to the embodiment described above, and various modifications can be made without departing from the gist of the implementation stage. Moreover, you may implement combining each embodiment suitably, and in this case, the combined effect can be acquired. In addition, the above embodiment includes various inventions, and various inventions can be extracted by using a combination of a plurality of constituent elements selected from the disclosure. For example, even if several constituent elements are omitted from all the constituent elements disclosed in the embodiment, when the problem can be solved to obtain an effect, the omitted constituent element can be extracted as an invention.

1‧‧‧ container

10‧‧‧ container body

10a‧‧‧mouth

10b‧‧‧External thread

11‧‧‧ hinged cover

21‧‧‧ cover main body

21a‧‧‧ opening

22‧‧‧ Cover

23‧‧‧ hinge section

31‧‧‧Outer tube section

31a‧‧‧Internal thread

32‧‧‧Inner tube

32a‧‧‧Lower protrusion

32b‧‧‧ engagement protrusion

33‧‧‧Sealing ring

33a‧‧‧Continuous

33b‧‧‧Seal

33c‧‧‧Chamfer

33d‧‧‧Chamfer

41‧‧‧Top plate department

41a‧‧‧Finger hook

42‧‧‧ peripheral wall

42a‧‧‧protruded by engagement

43‧‧‧ annular protrusion

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

Claims (3)

A hinged cover is provided with a cover main body, a cover portion and a hinge portion. The cover main system has a cylinder portion and a seal ring and is installed at an opening portion formed on an upper end of a bottomed cylindrical container body. The seal ring is It is integrally formed with the cylindrical portion, extends downward from the cylindrical portion with an inner peripheral surface of the cylindrical portion, and a curved chamfered portion is formed on the inner peripheral surface of the lower end portion; A top plate portion and a ring-shaped protrusion covering the cover body, the ring-shaped protrusion provided on the top plate portion and in close contact with the inner peripheral surface of the seal ring; the hinge portion is in contact with the cover body and the cover portion It is integrally formed and connects the said cover main body and the said cover part. The hinged lid according to claim 1, wherein: the seal ring is configured such that an outer diameter of a lower end is larger than an outer diameter of a midway portion. A container comprising: (i) a bottomed cylindrical container body having a mouth portion at an upper end; and (ii) the hinged lid according to claim 1 or claim 2.