Discharge container

Abstract

To provide an ejection container configured in such a manner that the erroneous opening thereof due to rotation of an ejection tool is easily suppressed.SOLUTION: An ejection container 1 has a container main body 2, an ejection tool 3, and a shrink film 6. The container main body 2 has a mouth portion 2a, a trunk portion 2b and a bottom, the ejection tool 3 has an outer peripheral wall 3a comprising: a threadedly engaging portion 4 which can be threadedly disengaged from a state in which the threadedly engaging portion 4 is threadedly engaged with an outer peripheral surface of the mouth portion 2a; and a protruded portion 5 protruding to a radial outside, and in the ejection tool, a portion on the side which is one side in a circumferential direction of the outer peripheral wall 3a on an external surface of the protruded portion 5, has a difference-in-level surface 5a projecting to radial outside in the direction in a difference-in-level shape, and the shrink film 6 is fitted to the container main body 2 over a range at least from an upper portion of the trunk portion 2b to the difference-in-level surface 5a.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a discharge container.

Background Art

[0002] There is known a discharge container having a container body with a mouth portion, a body portion, and a bottom portion, and a discharge tool that can be screwed off from a state of being screwed onto the outer peripheral surface of the mouth portion (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] Regarding the discharge container as described above, from the viewpoints of suppressing oxidation of the content due to contact with outside air and suppressing entry of foreign substances into the content, it is desirable to be able to suppress accidental opening due to rotation of the discharge tool.

[0005] Therefore, an object of the present invention is to provide a discharge container that is easy to suppress accidental opening due to rotation of the discharge tool.

Means for Solving the Problems

[0006] One aspect of the present invention is as follows.

[0007] [1] [[ID=5^{2}]]A container body having a mouth portion, a body portion, and a bottom portion, and a discharge tool having an outer peripheral wall having a screwing portion that can be screwed off from a state of being screwed onto the outer peripheral surface of the mouth portion and a convex portion protruding radially outward, and a stepped surface protruding radially outward in a stepped manner on a screwing-off side portion, which is one side in the circumferential direction of the outer peripheral wall, on the outer surface of the convex portion, and a shrink film mounted over at least a range from the upper part of the body portion to the stepped surface.Discharge container, At least the portion extending from the upper part of the body to the stepped surface restricts the dispensing tool from rotating toward the unscrewed side relative to the shrink film by contact between the dispensing tool and the shrink film via the stepped surface, even after the dispensing container has been put into use. Discharge container.

[0008] [2] The discharge container according to [1], wherein the convex portion is in the shape of a projection.

[0009] [3] The dispensing container according to [1] or [2], wherein the shrink film is attached to at least the portion of the body from the upper part to beyond the protrusion.

[0010] [4] The discharge container according to any one of [1] to [3], wherein the container body comprises an outer layer, an inner layer, and an outside air inlet for introducing outside air between the outer layer and the inner layer. [Effects of the Invention]

[0011] According to the present invention, it is possible to provide a dispensing container that can easily prevent accidental opening due to the rotation of the dispensing device. [Brief explanation of the drawing]

[0012] [Figure 1] This is an external view showing a dispensing container of one embodiment of the present invention. [Figure 2] This is a cross-sectional view AA in Figure 1. [Figure 3] Figure 1 is a partial cross-sectional view illustrating the procedure for attaching the shrink film to the dispensing container. [Figure 4] This is a partial cross-sectional view showing a modified version of the discharge container shown in Figure 1, with the shrink film omitted. [Modes for carrying out the invention]

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0014] As shown in FIGS. 1 to 3, in one embodiment of the present invention, the discharge container 1 has a container body 2 having a mouth portion 2a, a body portion 2b, and a bottom portion, a screwing portion 4 that can be screwed on and off from the outer peripheral surface of the mouth portion 2a, and an outer peripheral wall 3a having a plurality (four) of convex portions 5 protruding radially outward. A discharge tool 3 having a stepped surface 5a protruding stepwise radially outward is provided on a portion on the screwing-off side, which is one side in the circumferential direction of the outer peripheral wall 3a, on the outer surface of each convex portion 5, and a shrink film 6 is mounted over at least the range from the upper portion of the body portion 2b to each stepped surface 5a (in the axial direction of the mouth portion 2a).

[0015] In this embodiment, the direction along the central axis O of the mouth portion 2a is referred to as the axial direction, the side from the mouth portion 2a as one side in the axial direction toward the inside of the container body 2 is referred to as the lower side, the opposite side is referred to as the upper side, the direction orthogonal to the central axis O is referred to as the radial direction, and the direction around the central axis O is referred to as the circumferential direction.

[0016] Each convex portion 5 has a protruding shape, and the plurality of convex portions 5 are provided so as to be aligned at equal intervals in the circumferential direction. The number of convex portions 5 provided on the discharge tool 3 is not limited to four and can be set as appropriate. For example, eight protruding convex portions 5 may be provided so as to be aligned at equal intervals in the circumferential direction. The plurality of convex portions 5 are not limited to the configuration of being aligned at equal intervals in the circumferential direction. The number of convex portions 5 may be one. The convex portions 5 are not limited to the configuration of having a protruding shape, and for example, may have a circumferential rib shape extending long in the circumferential direction.

[0017] According to the discharge container 1 having the above-described configuration, for example, as shown in FIG. 3, a part of the shrink film 6 mounted over the range from the bottom portion of the container body 2 to the upper end portion of the discharge tool 3 by heat shrinkage is left at least in the range from the upper portion of the body portion 2b to each stepped surface 5a as shown in FIG. 1 at the start of use of the discharge container 1, and the content accommodated in the container body 2 can be removed in the range necessary for discharging through the discharge tool 3. In addition, a label as a mark for facilitating such removal, a perforation as a planned break portion, or the like may be provided.

[0018] According to such a removal operation of the shrink film 6, the shrink film 6 that remains can suppress the accidental opening caused by the rotation of the discharge nozzle 3. That is, even when a force is applied to twist the discharge nozzle 3 in the circumferential screw-removing direction by grasping the upper part of the body 2b with one hand unintentionally for opening, the contact between the discharge nozzle 3 and the shrink film 6 through the stepped surface 5a of the plurality of (even one has an effect) convex portions 5 restricts the discharge nozzle 3 from rotating in the screw-removing direction with respect to the shrink film 6. Therefore, it is possible to suppress the oxidation of the contents inside the container body 2 due to contact with the outside air, and it is easier to achieve the good maintenance of the quality of the contents. Also, it is easier to suppress the mixing of foreign substances into the contents inside the container body 2 due to accidental opening. Incidentally, the shrink film 6 may be mounted from the beginning in a range where the above-described removal is not necessary.

[0019] When the contents are used up and the discharge container 1 is to be discarded, for example, by breaking a perforation extending in the axial direction and removing the shrink film 6, the regulation against the rotation of the discharge nozzle 3 in the screw-removing direction through the stepped surface 5a of the convex portion 5 by the shrink film 6 can be released. Therefore, the discharge nozzle 3 can be easily removed from the container body 2 by screwing on and off through the screwing portion 4, and separate disposal and the like can be performed.

[0020] From the viewpoint of making it easier to suppress the accidental opening caused by the rotation of the discharge nozzle 3, as shown in FIG. 1, the shrink film 6 is preferably configured to be mounted over at least the range from the upper part of the body 2b to the portion exceeding the convex portion 5. According to such a configuration, the rotation of the discharge nozzle 3 in the screw-removing direction with respect to the shrink film 6 can be more strongly restricted. However, the configuration of the shrink film 6 is not limited to this.

[0021] As shown in Figure 3, the container body 2 has an outer layer 7, an inner layer 8, and an outside air inlet 9 that introduces outside air between the outer layer 7 and the inner layer 8 due to the contraction of the inner layer 8 when the contents contained in the inner layer 8 are discharged. With this configuration, contact of the contents inside the container body 2 with the outside air introduced into the container body 2 instead of the contents when they are discharged can be suppressed, thereby suppressing oxidation of the contents. However, the container body 2 is not limited to such a double-walled container.

[0022] The outside air inlet 9 is provided in the opening 2a, but is not limited to this, and may be provided in the body 2b or the bottom, for example. The outer layer 7 and the inner layer 8 are each made of polyethylene terephthalate resin and are formed by biaxially stretched blow molding a bottomed cylindrical preform assembled to form a double-layer structure. However, the outer layer 7 and the inner layer 8 are not limited to polyethylene terephthalate, and may be formed from other materials such as polyester, polypropylene, polyethylene or other polyolefins, or other resins. The manufacturing method for the container body 2 as a double-layer container is not limited to biaxially stretched blow molding, and may be extrusion blow molding, for example.

[0023] The outer circumferential wall 3a of the discharge device 3 forms a diameter-reducing section 10 from the lower end to a predetermined height, and multiple (or sometimes single) protrusions 5 are provided on the diameter-reducing section 10. However, the configuration of the discharge device 3 is not limited to this; for example, as shown in Figure 4, it may be configured without such a diameter-reducing section 10.

[0024] The threaded portion 4 is provided on the inner surface of the outer peripheral wall 3a, arranged in the circumferential direction, and is formed when the threads provided on the outer peripheral surface of the opening 2a are pressed against the multiple ribs that extend in the axial direction, after the dispensing tool 3 is attached by driving in a plug, thereby transferring the shape of the threads. However, the configuration of the dispensing tool 3 is not limited to this.

[0025] The dispensing device 3 is configured as a dispensing cap that dispenses the contents by pressing it against the container body 2. However, the configuration of the dispensing device 3 is not limited to this; for example, it may be configured as a push-down head type or trigger type pump device.

[0026] The present invention is not limited to the embodiments described above, and can be modified in various ways without departing from its essence.

[0027] Therefore, the discharge container 1 of the above-described embodiment can be modified as long as it includes a container body 2 having a mouth portion 2a, a body portion 2b, and a bottom portion; an outer peripheral wall 3a having a screw portion 4 that can be unscrewed from a screwed state on the outer peripheral surface of the mouth portion 2a and a protrusion 5 that protrudes radially outward, and a discharge tool 3 having a stepped surface 5a on the outer surface of the protrusion 5, which is the unscrewed side portion of the outer peripheral wall 3a on one side in the circumferential direction, and a shrink film 6 that is attached over a range from the upper part of the body portion 2b to the stepped surface 5a. [Explanation of Symbols]

[0028] 1 Discharge container 2. Container body 2a Mouth 2b Torso 3 Dispensing tool 3a Outer wall 4. Threaded section 5. Convex part 5a Step surface 6. Shrink film 7 Outer body 8. Inner layer 9. Outside air intake 10 Reduced diameter part O center axis

Claims

1. A container body having a mouth, a body and a bottom, A discharge tool having an outer circumferential wall having a threaded portion that can be unthreaded from a screwed state on the outer circumferential surface of the opening and a protrusion that projects radially outward, wherein the unthreaded side portion of the outer surface of the protrusion, which is one side in the circumferential direction of the outer circumferential wall, has a stepped surface that projects radially outward in a stepped manner, A dispensing container having a shrink film that is attached to at least the area from the upper part of the body to the stepped surface, A dispensing container wherein, at least the portion extending from the upper part of the body to the stepped surface restricts the dispensing tool from rotating toward the unscrewed side relative to the shrink film by contact between the dispensing tool and the shrink film via the stepped surface, even after the dispensing container has been put into use.

2. The discharge container according to claim 1, wherein the convex portion is in the shape of a projection.

3. The discharge container according to claim 1, wherein the shrink film is attached to at least the portion of the body from the upper part to beyond the protrusion.

4. The discharge container according to claim 1, wherein the container body comprises an outer layer, an inner layer, and an outside air inlet for introducing outside air between the outer layer and the inner layer.

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