Refill container

Abstract

To provide a refill container capable of suppressing the corotation of an inner container in removing a lid body.SOLUTION: A refill container 1 has: a container body 8 which has a bottomed cylindrical part 9 with a mouth part 9c and a bottom part 9b formed of an outer container 2 and an inner container 3 fitted to the outer container 2 detachably by rotation; a lid body 4 which is fitted to the container body 8 detachably by rotation to come into contact with the inner container 3 at the mouth part 9c; and an interposition member 5 which is provided integrally with one of the inner container 3 and outer container 2, has a higher coefficient of friction than that of the one, and comes into contact with the other of the inner container 3 and outer container 2 at the bottom part 9b with the lid body 4 fitted.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a refill container. [Background technology]

[0002] A refill container is known that has a container body that forms a bottomed tubular portion having a mouth and a bottom, consisting of an outer container and an inner container that is detachably attached to the outer container by rotating, and a lid that is detachably attached to the container body by rotating and that fits tightly to the inner container at the mouth (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent Publication No. 2021-8277 Summary of the Invention [Problem to be solved by the invention]

[0004] In the refill container described above, if the inner container rotates when the lid is removed, the attachment state of the inner container to the outer container may become unstable.

[0005] SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide a refill container that can prevent the inner container from rotating together with the lid when the lid is removed. [Means for solving the problem]

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

[0007] [1] a container body that forms a bottomed tubular portion having a mouth and a bottom, the container body being made up of an outer container and an inner container that is detachably attached to the outer container by rotating; a lid body that is detachably attached to the container body by rotating and that tightly contacts the inner container at the opening; A refill container having an intervening member that is integrally formed with one of the inner container and the outer container, has a higher coefficient of friction than the other, and contacts the other of the inner container and the outer container at its bottom when the lid body is attached.

[0008] [2] a screw portion for rotating the inner container relative to the outer container; a stopper that stops the rotation of the inner container in the mounting direction at a position where the mounting is completed; The refill container according to [1], wherein the intervening member is more elastic than either the inner container or the outer container, and when the inner container is attached, the bottom contacts the other of the inner container and the outer container.

[0009] [3] The refill container according to [2], wherein the inner container is made of glass. [Effects of the Invention]

[0010] According to the present invention, it is possible to provide a refill container that can prevent the inner container from rotating together with the lid when the lid is removed. [Brief explanation of the drawings]

[0011] [Figure 1] 1 is a partial vertical cross-sectional side view showing a refill container according to an embodiment of the present invention. [Figure 2] 2 is a cross-sectional view taken along the line AA in FIG. 1. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0013] 1 and 2, in one embodiment of the present invention, a refill container 1 has an outer container 2, an inner container 3, a lid 4, and an intervening member 5. The inner container 3 is a replacement container that contains contents (not shown). The contents are not particularly limited and may be, for example, cosmetics, food, medicines, etc.

[0014] The lid 4 has a lid main body 6 and a packing 7. The outer container 2 and the inner container 3 form a container main body 8. The outer container 2, the inner container 3, the lid main body 6, and the interposing member 5 are each integrally molded. Note that these components are not limited to being integrally molded, and may be formed, for example, by assembling a plurality of components. The lid 4 is not limited to having the packing 7 separate from the lid main body 6.

[0015] The inner container 3 is made of glass, the outer container 2 is made of a non-elastomer resin such as olefin resin or polyester resin, and the intervening member 5 is made of an elastomer resin. However, the materials for forming these members are not limited to those mentioned above.

[0016] The container body 8, together with the outer container 2 and the inner container 3 attached to the outer container 2, forms a bottomed tubular part 9 centered on the central axis O. The bottomed tubular part 9 has a body part 9a and a bottom part 9b connected to the lower end part of the body part 9a, the upper part of the body part 9a forms a mouth part 9c, and the part of the body part 9a other than the upper part forms a body main body part 9d.

[0017] For ease of explanation, the direction along the central axis O is also referred to as the up-down direction, the direction along the central axis O from the bottom 9b side toward the mouth 9c side is also referred to as the upward direction, and the opposite direction is also referred to as the downward direction, the direction along a straight line perpendicular to the central axis O is also referred to as the radial direction, the direction circumferentially around the central axis O is also referred to as the circumferential direction, and a cross section including the central axis O is also referred to as a longitudinal cross section.

[0018] The refill container 1 is configured as a jar container whose height (vertical width) is smaller than its radial width. However, the refill container 1 is not limited to this, and may be configured as a bottle container whose height is greater than its radial width.

[0019] The outer container 2 has a bottom wall 10 and a peripheral wall 11 that extends upward from the bottom wall 10 and also extends circumferentially. The inner container 3 has a bottom wall portion 12 and a peripheral wall portion 13 that extends upward from the bottom wall portion 12 and also extends circumferentially. The bottom wall portion 12 is located higher than the bottom wall 10. The bottom portion 9b is formed by the bottom wall portion 12 and the bottom wall 10. The peripheral wall portion 13 is located radially inward from the peripheral wall 11. The body main body portion 9d is formed by the peripheral wall 11 and a part of the peripheral wall portion 13.

[0020] The mouth 9c is formed by the inner container 3 (peripheral wall 13), and is not formed by the outer container 2. The mouth 9c is cylindrical in shape, with the outer diameter tapering in steps from the upper end of the trunk main body 9d and the radial thickness decreasing.

[0021] The mouth 9c (inner container 3) is configured so that a lid for the inner container 3 (not shown) can be attached and detached by screwing. However, the mouth 9c is not limited to this, and for example, the lid for the inner container 3 may be configured so that it can be attached and detached by engagement other than screwing. The mouth 9c is not limited to a cylindrical shape, and may be configured to have a tubular shape other than a cylindrical shape, such as a square tube shape.

[0022] The container body 8 has a first screw thread portion 14 that allows the inner container 3 to rotate about the central axis O relative to the outer container 2. Therefore, the inner container 3 is detachably attached to the outer container 2 by rotation via the first screw thread portion 14. In this embodiment, the first screw thread portion 14 is provided on the trunk body portion 9d, but this is not limiting.

[0023] The container body 8 also has a stopper 15 that stops rotation of the inner container 3 in the mounting direction at the mounting completion position by abutting the inner container 3 with the outer container 2. This prevents excessive rotation beyond the mounting completion position from causing the threads to become caught in the first screw engagement portion 14, making removal difficult. In particular, when the inner container 3 is made of glass as in this embodiment, the threads are likely to become caught in the resin outer container 2, so the above-mentioned effect of the stopper 15 is remarkable. In this embodiment, the stopper 15 is provided above the first screw engagement portion 14, but this is not limited to this.

[0024] Intervening member 5 is provided integrally with outer container 2, has higher elasticity (i.e., a higher elastic limit and a lower elastic modulus) than either inner container 3 or outer container 2, and contacts inner container 3 at bottom 9b when inner container 3 is attached. Therefore, gaps that tend to occur due to the provision of stopper 15 are absorbed by the elastic displacement of highly elastic intervening member 5, thereby suppressing rattling.

[0025] Furthermore, the intervening member 5 has a higher coefficient of friction than the outer container 2. Therefore, a higher frictional force can be generated than when the inner container 3 is in contact with the outer container 2 at the bottom 9b without the intervening member 5, making it easier to maintain the inner container 3 in a good attached state.

[0026] The container body 8 also has a resistance portion 16 that provides resistance to rotation of the inner container 3 in the removal direction from the position where attachment is complete by engaging the concave and convex shapes of the inner container 3 and the outer container 2. The resistance portion 16 is elastically deformed by the force that rotates the inner container 3 in the removal direction, thereby releasing the engagement between the inner container 3 and the outer container 2 and eliminating the resistance. The resistance portion 16 makes it easier to maintain a good attachment state of the inner container 3. In this embodiment, the resistance portion 16 is provided above the first screw-engagement portion 14, but this is not limited to this. It is also possible to configure the container without the resistance portion 16.

[0027] The interposing member 5 is molded integrally with the outer container 2 by insert molding. However, the means for integrally providing the interposing member 5 with the outer container 2 is not limited to this, and the interposing member 5 may be integrally provided by, for example, welding, adhesion, fitting, or the like.

[0028] The lid body 4 has a top 4a and a lid outer peripheral portion 4b that extends downward from the top 4a and also extends circumferentially, and has a topped cylindrical shape centered on the central axis O. The top 4a is composed of a lid main body 6 and a packing 7, and the packing 7 is provided below the lid main body 6 at the top 4a. The lid outer peripheral portion 4b is composed of the lid main body 6, and is not composed of the packing 7.

[0029] The refill container 1 has a second screw portion 17 that rotates the lid 4 relative to the container body 8 about the central axis O. Therefore, the lid 4 is detachably attached to the container body 8 by rotating via the second screw portion 17. In this embodiment, the second screw portion 17 is provided on the barrel main body portion 9d, but this is not limiting.

[0030] When the lid 4 is attached to the container body 8, the lid 4 is in tight contact with the inner container 3 at the top surface of the opening 9c via the packing 7. Therefore, by attaching the lid 4 to the container body 8, the inner container 3 can be sealed.

[0031] In this embodiment, the rotation direction of the lid body 4 relative to the outer container 2 when the lid body 4 is removed is the same as the rotation direction of the inner container 3 relative to the outer container 2 when the inner container 3 is removed (e.g., counterclockwise when viewed from above). Therefore, if the inner container 3 rotates together with the lid body 4 when the lid body 4 is removed, there is a risk that the attachment state of the inner container 3 to the outer container 2 will become unstable.

[0032] However, in this embodiment, the intervening member 5 contacts the inner container 3 at the bottom 9b even when the lid 4 is attached. Furthermore, as described above, the intervening member 5 has a higher coefficient of friction than the outer container 2. Therefore, when removing the lid 4, a higher frictional force can be generated than when the inner container 3 contacts the outer container 2 at the bottom 9b without the intervening member 5. Therefore, according to this embodiment, it is possible to prevent the inner container 3 from rotating together with the outer container 2 when the lid 4 is removed, and it is possible to easily maintain the attachment state of the inner container 3 to the outer container 2.

[0033] Furthermore, according to the above-described configuration of the mouth 9c, in which the outer diameter tapers in a step shape from the upper end of the trunk main body 9d and the radial thickness decreases, the frictional force between the lid 4 and the inner container 3 can be reduced, and co-rotation can be prevented, making it easier to maintain a good attachment state of the inner container 3. However, the mouth 9c is not limited to this configuration.

[0034] The present invention is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit and scope of the present invention.

[0035] Therefore, the refill container 1 of the above-mentioned embodiment can be modified as long as it is a refill container 1 having a container body 8 that forms a bottomed tubular portion 9 having a mouth 9c and a bottom 9b with an outer container 2 and an inner container 3 that is detachably attached to the outer container 2 by rotating, a lid body 4 that is detachably attached to the container body 8 by rotating and thus fits tightly to the inner container 3 at the mouth 9c, and an intervening member 5 that is integral with one of the inner container 3 and the outer container 2, has a higher coefficient of friction than that of the other, and contacts the other of the inner container 3 and the outer container 2 at the bottom 9b when the lid body 4 is attached.

[0036] For example, the intervening member 5 may be integral with the inner container 3, have a higher coefficient of friction than the inner container 3, and contact the outer container 2 at the bottom 9b when the lid 4 is attached. The inner container 3 may be removably attached to the outer container 2 by rotation via an engaging portion other than a threaded portion. The lid 4 may be removably attached to the container body 8 by rotation via an engaging portion other than a threaded portion, so that the opening 9c comes into close contact with the inner container 3. A configuration without a stopper 15 is also possible. The intervening member 5 is not limited to a configuration having a higher elasticity than either the inner container 3 or the outer container 2. [Explanation of symbols]

[0037] 1 refill container 2 Outer container 3 Inner container 4 Lid 4a Top 4b Lid outer periphery 5 Intervening member 6 Lid body 7. Packing 8 Container body 9 Bottomed cylindrical part 9a Torso 9b bottom 9c Mouth 9d Body 10 Bottom Wall 11 Peripheral wall 12 Bottom wall 13 Peripheral wall section 14 First screw engagement part 15 Stopper 16 Resistance Department 17 2nd screw joint O Central axis

Claims

1. a container body that forms a bottomed tubular portion having a mouth and a bottom, the container body being made up of an outer container and an inner container that is detachably attached to the outer container by rotating; a lid body that is detachably attached to the container body by rotating and that tightly contacts the inner container at the opening; A refill container having an intervening member that is integrally formed with one of the inner container and the outer container, has a higher coefficient of friction than the other, and contacts the other of the inner container and the outer container at its bottom when the lid body is attached.

2. a screw portion for rotating the inner container relative to the outer container; a stopper that stops the rotation of the inner container in the mounting direction at a position where the mounting is completed; 2. The refill container according to claim 1, wherein the intervening member has higher elasticity than either the inner container or the outer container, and the bottom portion of the intervening member contacts the other of the inner container and the outer container when the inner container is attached.

3. 3. The refill container according to claim 2, wherein the inner container is made of glass.

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