JP2020121732A - Tube container - Google Patents

Abstract

To provide a tube container that can achieve both of sealing until the container is unsealed first and sealing after the container is resealed.SOLUTION: The tube container includes a cylindrical trunk part whose one end is closed, which can store contents, a pour-out port part attached to the other end of the trunk part, which can close the other end of the trunk part, and a cap to be attached to the pour-out port part, where the other end of the trunk part is made adhere to a surface at the opposite side of the one end side of the trunk part, at an edge of the pour-out port part. The pour-out port part comprises a half-cut part formed annularly, a knob part extending from inside of the half-cut part and a cylindrical peripheral wall extending toward the opposite side of the trunk part, at a side closer to outside than the half-cut part. The cap, which is attached to the pour-out port part, comprises an inner ring closely fitted to an inner peripheral surface of the peripheral wall, can remove a portion of the pour-out port part along the half-cut by pulling the knob part by predetermined force to form an opening in the pour-out port part.SELECTED DRAWING: Figure 3

Description

The present invention relates to a tube container.

BACKGROUND ART A tube container that can be filled with medicines, cosmetics, foods, etc. and packaged is known. In general, a tube container has a tubular body portion having one end closed and the other end opened, and an outer diameter attached to the other end of the opening of the body portion by welding or the like, the outer diameter of which increases as the distance from the opening of the body portion increases. And a spout portion (also referred to as a shoulder portion) formed in a taper shape that becomes smaller. On the opposite side of the spout from the body, there is an opening that allows the contents to be taken out, and the user of the tube container must crush the body after removing the cap attached to the spout. Thereby, the contents can be squeezed out from the opening. (See Patent Document 1).

JP, 2016-199280, A

In such a tube container, an easily peelable film that closes the opening may be attached from the outside of the spout part in order to perform sealing up to the first opening. In this case, after the easily peelable film has been peeled off, sealing at the time of resealing is performed by the packing made of expanded polystyrene attached to the inner surface of the top plate of the cap. However, even when such a packing is used, the edge of the opening loses smoothness when the film is attached, and after peeling the film, a gap is created between the packing and the edge of the opening. Therefore, there is a problem that the sealing property at the time of resealing is limited.

Further, there is known a tube container provided with an inner ring on the inner surface of the top plate of the cap in order to improve the sealing property at the time of resealing, which can be closely fitted to the inner peripheral surface of the opening. In such a tube container, when an easily peelable film is provided, it cannot be adopted because it interferes with the inner ring.

The present invention has been made in view of such problems, and an object thereof is to provide a tube container that can achieve both the sealing up to the first opening and the sealing after resealing.

One aspect of the present invention for solving the above problem is that one end is closed, and a tubular body that can store contents and the other end of the body attached to the other end of the body are closed. A tube container including a possible spout and a cap attached to the spout, wherein the other end of the body is bonded to a surface of the end of the spout that is opposite to one end of the body. The spout is formed in an annular half-cut, a knob extending from the inside of the half-cut, and a tubular shape extending outward from the half-cut toward the opposite side of the body. The cap is equipped with an inner ring that fits closely to the inner peripheral surface of the peripheral wall when attached to the spout, and by pulling the knob with a predetermined force, the cap is poured along the half cut. It is a tube container in which a part of the outlet portion can be removed to form an opening in the outlet portion.

ADVANTAGE OF THE INVENTION According to this invention, the tube container which can make the sealing up to the first opening and the sealing after resealing compatible can be provided.

The front view and side view of the tube container which concerns on the 1st Embodiment of this invention. Cross-sectional view and plan view of the spout Sectional drawing which expanded the principal part of the tube container which concerns on the 1st Embodiment of this invention. Sectional drawing which expanded the principal part of the tube container which concerns on the 2nd Embodiment of this invention.

A tube container according to an embodiment of the present invention will be described with reference to the drawings. In addition, in the following description, the same or corresponding configurations between the embodiments will be denoted by the same reference numerals and will not be described.

(First embodiment)
The tube container 100 according to the first embodiment of the present invention includes a body 10 having one end closed, a spout 20 attached to the other end of the body 10, and a cap 30 attached to the spout 20. Including and 1 shows a front view and a side view of the tube container 100, FIG. 2 shows a plan view of the spout 20 and a sectional view taken along line BB′, and FIG. 3 has a cap 30 attached. FIG. 2 is a cross-sectional view taken along the line AA of FIG. 1 in which the vicinity of the spout 20 is enlarged. Note that FIG. 1 shows a state in which the cap 30 is not attached to the spout 20 for convenience.

The body portion 10 is a tubular member formed of a soft material and capable of accommodating contents (not shown), the bottom portion 11 located at one end of which is closed. For example, the body portion 10 is formed by forming the film into a tubular shape, and then bonding the films facing each other at the bottom portion 11 and the edge along the longitudinal direction of the body portion 10 (the vertical direction of the paper surface of FIG. 1). Can be formed by. The method for adhering the films to each other is not particularly limited, but for example, a method in which an adhesive layer containing polyethylene is provided on the films and these are heat-sealed can be used.

The spout 20 is a member that is attached to the top 12 located at the other end of the body 10 and can close the top 12 of the body 10. The spout 20 includes, for example, a flat plate-shaped closing portion 21 that is orthogonal to the longitudinal direction of the body 10. As shown in FIG. 2, the occlusion portion 21 has a disc shape as an example in a plan view, but the shape is not limited and may be an ellipse, an ellipse, a polygon, or the like. The material of the spout 20 is not particularly limited, but a resin material such as linear low-density polyethylene or low-density polyethylene can be preferably used. The spout portion 20 in which the closing portion 21 is formed in a flat plate shape can reduce the amount of material used as compared with the spout portion according to the related art formed in a tapered shape. It should be noted that the shape of the closing portion 21 does not have to be a flat plate shape orthogonal to the longitudinal direction of the body portion 10 as long as the half cut 22, the knob portion 23, and the peripheral wall 24 described below can be formed. The taper shape may be provided with a shoulder portion whose outer diameter decreases as the distance from the top portion 12 of 10 increases.

The closing portion 21 has a ring-shaped half cut 22 in a substantially central portion, a knob portion 23 extending from the inside of the half cut 22 toward the side opposite to the bottom portion 11 of the body portion 10, and the half cut 22. A cylindrical peripheral wall 24 extending outwardly from the bottom 11 of the body 10 is provided.

As an example, the picking portion 23 is provided at the support portion 23a extending from the closing portion 21 and the end portion of the support portion 23a opposite to the spout 20 and is formed so that the user can put his/her finger therein. It is a pull ring including the ring part 23b. Since the closing part 21 includes the half cut 22 and the picking part 23, the user of the tube container 100 pulls the picking part 23 with a predetermined force to remove a part of the closing part 21 along the half cut 22. It can be removed, and thus an opening for taking out the contents can be formed in the closing portion 21. As described above, in the tube container 100, the other end of the body 10 is closed by the spout 20, and at the time of the first opening, a part of the closed portion 21 is removed to form an opening in the spout 20. Therefore, it is possible to perform sealing until the first opening.

Note that the shape of the picking portion 23 is not limited to the pull ring as long as the user can remove a part of the closing portion 21 by pulling, and for example, a plate-like picking margin extending from the closing portion 21 is possible. Good.

As shown in FIGS. 1 and 3, the top portion 12 of the body portion 10 is bonded to the end edge of the closing portion 21 on the surface of the closing portion 21 opposite to the bottom portion 11 of the body portion 10. The method for adhering the body portion 10 and the closing portion 21 is not particularly limited. For example, an adhesive layer containing polyethylene is provided in the innermost layer of the film, and the spout 20 is formed with a material containing polyethylene, and these are A method of heat sealing can be used.

The cap 30 is a member that is attached to the spout 20 and enables closing and opening of the opening formed in the spout 20. The cap 30 is, for example, a hinge cap that includes a tubular fixing portion 31 that can be attached and fixed to the spout 20 and a lid portion 32 that is swingably attached to the fixing portion 31 via a hinge portion 33. The material of the cap 30 is not particularly limited, but a resin material such as polypropylene, polyethylene, or low density polyethylene can be used. The fixing portion 31, the lid portion 32, and the hinge portion 33 can be integrally formed, for example.

The fixing portion 31 is provided so as to surround the top plate 31a, a hole 31b provided in the top plate 31a for taking out the contents, and the hole 31b on the surface of the top plate 31a on the side facing the spout 20. A cylindrical first inner ring 31c, a contact ring 31d annularly protruding from a top plate 31a on the outer peripheral side of the first inner ring 31c, and a hole 31b on the surface of the top plate 31a facing the lid 32. It includes a second inner ring 31e provided so as to surround it. The content taken out from the opening of the spout 20 can be taken out of the tube container 100 through the hole 31b. The contact ring 31d and the second inner ring 31e are not essential.

As shown in FIG. 3, the first inner ring 31c is formed in a tubular shape so that it can be fitted in close contact with the inner peripheral surface of the peripheral wall 24 when attached to the spout 20. Further, the contact ring 31d is provided so as to abut on the edge of the peripheral wall 24 on the side opposite to the bottom 11 of the body 10 in the state of being attached to the spout 20. Further, the second inner ring 31e is formed so that the inner ring 32c of the lid portion 32 can be fitted in close contact with the outer peripheral surface in a state where the lid portion 32 described later closes the hole 31b. The first inner ring 31c, the contact ring 31d, and the second inner ring 31e are formed so that their central axes overlap with each other. The second inner ring 31e may be formed so that the inner ring 32c of the lid 32 can be fitted in close contact with the inner peripheral surface.

In the tube container 100, as shown in FIG. 3, the first inner ring 31c and the second inner ring 31e of the fixing portion 31 are formed such that the central axes thereof overlap and the outer diameter and the inner diameter are the same. However, if the first inner ring 31c and the second inner ring 31e are formed so as to overlap each other, the outer diameter and the inner diameter may be different. Specifically, the outer peripheral diameter and the inner peripheral diameter of the second inner ring 31e may be formed larger than both the outer peripheral diameter and the inner peripheral diameter of the first inner ring 31c.

As shown in FIG. 3, the hole 31b of the fixing portion 31 is formed at a position where the center thereof overlaps the center of the opening formed in the spout 20 in a plan view. Thereby, as will be described later, by closing and opening the hole 31b of the fixing portion 31 by the lid portion 32, the opening formed in the spout 20 can be closed and opened.

The structure for fixing the fixing portion 31 to the spout 20 is not particularly limited, but as an example, as shown in FIG. 3, an engaging claw protruding outward is provided at the tip of the peripheral wall 24, and the tip of the cap 30 is provided. Is provided with a cylindrical engagement wall 31f having an engagement claw protruding inward, the engagement wall 31f is fitted to the peripheral wall 24, and the engagement claws of the peripheral wall 24 and the engagement wall 31f are fitted to each other. Can be fixed.

As shown in FIG. 3, the lid 32 is a member capable of covering and closing the hole 31 b of the fixing portion 31 by swinging the lid 32 through the hinge portion 33. The lid portion 32 includes a peripheral wall 32a, a top plate 32b, and a cylindrical inner ring 32c. As shown in FIG. 3, the inner ring 32c is mounted on the top plate 32b so that the inner ring 32c can be closely fitted to the outer peripheral surface of the second inner ring 31e of the fixed portion 31 in a state where the lid portion 32 closes the hole 31b. Is provided on the inner peripheral surface of the.

As described above, in the tube container 100, since the cap 30 is provided with the first inner ring 31c which can be fitted in close contact with the inner peripheral surface of the peripheral wall 24 of the spout 20, the opening is formed in the spout 20. Also, by attaching the cap 30 to the spout portion 20, the peripheral wall 24 and the first inner ring 31c can seal and reseal the opening of the spout portion 20. That is, in the tube container 100, the closing portion 21 of the spout 20 that performs sealing up to the first opening and the close contact portion between the peripheral wall 24 and the first inner ring 31c that perform sealing after resealing are provided at different positions. As a result, it is possible to prevent these from interfering with each other, and it is possible to achieve both sealing up to the first opening and sealing after resealing.

Further, in the tube container 100, by being provided with the contact ring 31d that can be brought into contact with the edge of the peripheral wall 24 on the side opposite to the bottom 11 of the body 10 in the state of being attached to the spout 20, the resealing is performed. At times, the opening of the spout 20 can be more reliably sealed by the peripheral wall 24 and the contact ring 31d.

Further, in the tube container 100, by providing the second inner ring 31e and the inner ring 32c of the lid 32 which can be fitted in close contact with each other in the state where the lid 32 closes the hole 31b, when resealing, The opening of the spout 20 can be more reliably sealed by the second inner ring 31e and the inner ring 32c.

Further, in the tube container 100, the contents do not enter the region surrounded by the peripheral wall 24 until the first opening, so that it is not necessary to provide the peripheral wall 24 with a gas barrier property and the resin forming the peripheral wall 24 is protected. It is possible to reduce the adsorption amount of the contents.

As shown in FIG. 3, the inner diameter of the pouring hole 31b provided in the fixed portion 31 of the cap 30 is larger than the diameter of the half cut 22 and the outer diameter of the ring portion 23b of the knob 23. Is preferred. This allows the ring portion 23b to be easily picked from the outside of the hole 31b of the fixing portion 31 when the opening is formed in the closing portion 21 using the picking portion 23, and the removed closing portion 21 can be easily removed. The part can be taken out through the hole 31a. Therefore, the opening can be easily formed in the spout 20 without removing the cap 30 from the spout 20.

Further, as shown in FIGS. 1 and 3, the grip portion 23 may be formed so that at least a part thereof is located outside the top plate 31a of the fixed portion 31. As a result, the grip portion 23 is easier to grip as compared with the case where the ring portion is on the inner side of the hole 31a, so that the opening can be formed in the spout 20 more easily.

(Second embodiment)
The form of the cap is not limited to the hinge cap as long as it includes an inner ring that can be fitted in close contact with the inner peripheral surface of the peripheral wall 24 in the state of being attached to the spout 20. For example, like the cap 30′ of the tube container 101 according to the second embodiment shown in FIG. 4, a screw cap that can be screwed and attached to the peripheral wall 24 may be used. The cap 30 ′ may be closely fitted to the inner peripheral surface of the peripheral wall 24 and the inner peripheral surface of the peripheral wall 24 while being fitted to the inner peripheral surface of the peripheral wall 24 and the spout 20. It is also possible to include an inner ring 30c vertically extending from the top plate 30a and a contact ring 30d provided so as to abut on an edge of the peripheral wall 24 on the side opposite to the body 10.

Even in the tube container 101, an opening can be formed by removing a part of the closed portion 21 along the half cut 22 by pulling the knob 23 with a predetermined force, and as shown in FIG. By attaching the cap 30 ′ to the spout 20 by screwing the inner screw 30 b to the screw 24 a, the inner ring 30 c can be fitted in close contact with the inner peripheral surface of the peripheral wall 24. As a result, it is possible to reliably seal even after resealing, and thus it is possible to achieve both the sealing up to the first opening and the sealing after resealing.

INDUSTRIAL APPLICABILITY The present invention can be used for a packaging container that can be filled with medicines, cosmetics, foods and the like.

10 Body part 11 Bottom part 12 Top part 20, 20' Spouting part 21 Closing part 22 Half cut 23 Picking part 24 Peripheral wall 30, 30' Cap 30a Top plate 30b Inner screw 30c Inner ring 30d Contact ring 31 Fixing part 31a Top plate 31b Hole 31c 1st inner ring 31d Contact ring 31e 2nd inner ring 31f Engagement wall 32 Lid part 33 Hinge part 100, 101 Tube container

Claims (5)

A tubular body portion that is closed at one end and can store contents,
A spout that can close the other end of the body attached to the other end of the body,
A tube container including a cap attached to the spout,
The other end of the body is bonded to a surface opposite to the one end of the body at the edge of the spout,
The spout is
With a half cut formed in a ring,
A knob portion extending from the inside of the half cut,
A tubular peripheral wall extending toward the opposite side of the body portion outside the half cut,
The cap includes an inner ring fitted in close contact with the inner peripheral surface of the peripheral wall in a state of being attached to the spout,
By removing a part of the spout portion along the half cut by pulling the knob portion with a predetermined force, an opening can be formed in the spout portion,
Tube container. The cap is
A hinge cap including a fixing part that can be attached to the spout, and a lid part that is swingably attached to the fixing part via a hinge,
The inner ring is provided on the fixed portion,
The tube container according to claim 1. The cap is
It is a screw cap that can be screwed and attached to the peripheral wall,
The tube container according to claim 1. The cap is
A contact ring is provided that abuts on an edge of the peripheral wall on the side opposite to the body portion when attached to the spout portion.
The tube container according to claim 2 or 3. The picking portion is a pull ring including a ring portion on the side opposite to the spout portion, into which a finger can be placed.
The tube container according to claim 1.

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