JP2021008277A - Refill container - Google Patents

Abstract

To provide a refill container allowing easy removal of an inner container by disengaging at an initial stage of turning operation and then only applying a little turning force.SOLUTION: A refill container has: a container body 40 having an inner container 30 filled with a content, an outer container 10 presenting appearance and a middle container 20 storing the inner container 30; engaging means engaging the outer container 10 with the middle container 20; and a lid body capped on the container 40. The inner container 30 has a gripper 36 formed with a partial screw part 37. The gripper 36 has a gripping bottom 36a, a pair of gripping slopes 36b and an R part 36c. The middle container 20 is provided with a neck cylinder part 21 and a screw notched recess 27 for fitting the gripper 36. The screw notched recess 27 has a screw notched bottom 27a, a pair of screw notched slopes 27b and a pushing-up part 27c where the R part 36c rides on to move upward the inner container 30 in the initial stage immediately after turning of the inner container 30.SELECTED DRAWING: Figure 4

Description

The present invention relates to a refill container that enables replacement of the inner container.

Conventionally, an inner container containing cosmetics (contents) such as cream and hair styling product is stored in the outer container, and a refill container in which the inner container is detachably provided with respect to the outer container is known. ing. In such a refill container, the outer container is reused by removing the empty inner container after the contents are used up and replacing it with a new inner container filled with the contents (for example,). Patent Document 1).
In the refill container of Patent Document 1, the inner container can be removed from the outer container by grasping the grip portion provided on the inner container with a fingertip and pulling the inner container upward.

JP-A-2018-34836

However, a refill container that can be easily removed from the outer container by rotating the inner container around the container axis is desired.
Further, when the inner container is housed in the outer container, it is necessary to provide an engaging means between the inner container and the outer container to prevent the inner container from easily detaching from the outer container. There is also a problem that a large rotational force (rotational torque) must be continuously applied to the inner container and the inner container must be disengaged while being disengaged by the engaging means.

In the present invention, in order to solve the above-mentioned problems in the prior art, the engagement by the engaging means is disengaged at the initial stage of the rotation operation, and then the inner container can be easily removed by applying a small rotational force. The challenge is to create a refill container.

Among the means for solving the above problems, the main means of the present invention is
It has an inner container filled with contents, an outer container exhibiting an exterior, and an inner container arranged between the inner container and the outer container and in which the inner container is housed while being mounted inside the outer container. An engaging means provided between the outer container and the inner container to engage the outer container 10 and the inner container 20, and a lid attached to the upper opening end of the container body. And, a refill container with
The inner container is provided with a grip portion that is suspended from an annular peripheral wall portion provided at the upper edge portion and has a partially threaded portion formed on the outer surface thereof, and the grip portion is provided in the circumferential direction of the grip bottom portion and the grip bottom portion. It has a pair of grip inclined portions formed in an inclined shape from both ends toward the upper edge of the inner container, and an R portion formed in a curved shape between the grip bottom portion and the grip inclined portion. Formed,
The inner container is provided with a neck cylinder portion having a screw portion screwed on the outer peripheral surface and a screw notch recess in which the grip portion is fitted into the neck cylinder portion, and the screw notch recess is a screw notch bottom portion and a screw notch bottom portion. A pair of screw-missing inclined portions formed in an inclined shape along the circumferential direction between both ends in the circumferential direction and the upper edge of the inner container, and formed between the screw-missing bottom portion and the screw-missing inclined portion. It is characterized in that, in the initial stage immediately after the inner container is rotated, the R portion on the grip portion side is formed to have a push-up portion that rides on and moves the inner container upward. Is.
In the main means of the present invention, the inner container can be removed by simply rotating the inner container around the container axis, and the inner container is subsequently disengaged by the engaging means at the initial stage of the rotation operation. It can be easily removed by applying a smaller rotational force.

Further, in the other means of the present invention, a thin recess formed in the neck cylinder portion is formed in the neck cylinder portion so as to extend thinner than the neck cylinder portion from the screw-missing inclined portion toward the inside of the screw-missing recess. It is the addition of the means of being.
In the above means, in a state where the grip portion on the inner container side is fitted into the screw missing recess on the inner container side, the screw missing inclined portion on the inner container side and the grip inclined portion on the inner container side are in a gap facing each other in the circumferential direction. A thin recess can be interposed in the space, thereby filling the gap between the recesses to enhance the design.

Further, the other means of the present invention is to any of the above means, and the engaging means is the middle container side engaging protrusion formed on the outer peripheral surface of the upper end of the inner container and the inner peripheral surface of the annular peripheral wall portion of the inner container. It is added with the means that it is composed of the inner container side engaging protrusion formed in.
With the above means, it is possible to facilitate the engagement and disengagement between the inner container and the inner container door, and to prevent the inner container from falling off from the inner container during use.

Further, another means of the present invention is obtained by adding a means that the outer container and the inner container are integrally formed to any of the above means.
In the above means, the fixing means can be eliminated, and the cost can be reduced by reducing the number of parts.

In the present invention, the inner container can be removed only by rotating the inner container around the container axis.
Further, since the engagement in the engaging means can be released at the initial stage of the rotation operation, the inner container can be easily removed by applying a small rotational force in the subsequent operation.

It is a half cross-sectional view which looked at the refill container which shows the Example of this invention from the front side. It is a semi-cross-sectional view of the container body with the lid removed as seen from the side surface side. It is a front view of a container body. It is a front view of the container body which shows the state which the inner container is rotated. It is a front view of the container body which shows the state which the inner container is further rotated from FIG. FIG. 5 is a front view of the container body showing a state in which the inner container is further rotated from FIG.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a semi-cross-sectional view of a refill container showing an embodiment of the present invention as viewed from the front side, FIG. 2 is a semi-cross-sectional view of the container body with the lid removed from the side surface side, and FIG. 3 is a front view of the container body. Is.

First, the configuration of the refill container 1 will be described.
As shown in FIGS. 1 and 2, the refill container 1 of the present invention is provided with a container body 40 mainly having an outer container 10, an inner container 20, and an inner container 30 and being combined, and a packing 60. It is configured to have a lid 50 that crowns the upper open end of the body 40.

The outer container 10, the inner container 20, and the inner container 30 constituting the container body 40 are each formed in a bottomed tubular shape, and are arranged so that their central axes are located on a common container axis O.
Hereinafter, along the container axis O direction, the side where the outer container 10, the inner container 20, the outer container bottom wall portion 13, the inner container bottom wall portion 23, and the inner container bottom wall portion 33, which will be described later, are located is on the lower side. The side on which the lid 50, which is the opposite side, is located is called the upper side. Further, the direction orthogonal to the container axis O is defined as the radial direction, and the direction orbiting around the container axis O is defined as the circumferential direction.

The outer container 10 is a container having a bottomed tubular exterior with an open upper end, and has a substantially cylindrical outer container body 12 extending along the container axis O and an outer container body 12 thereof. The outer container bottom wall portion 13 provided in the lower portion is provided. A cylindrical bottom cylinder portion 14 is projected from the inner surface (upper surface) of the outer container bottom wall portion 13, and a locking recess 15 forming a fixing means is formed on the inner peripheral surface of the bottom cylinder portion 14. Has been done. The outer container 10 is made of, for example, a synthetic resin such as polyester, polystyrene, or polyolefin, glass, metal, or the like, and is molded by, for example, injection molding, blow molding, press molding, or the like.

The middle container 20 is a container housed in the outer container 10, and has a substantially cylindrical middle container body 22 extending along the container axis O and a middle container body 22 provided below the middle container body 22. The bottom wall of the container 23, the substantially cylindrical neck tube 21 extending radially outward from the position of the upper end of the middle container body 22, and extending to the lower end of the neck tube 21. It includes an outer cylinder portion 24 having a substantially cylindrical shape, and a lower cylinder portion 25 having a substantially cylindrical shape extending the lower portion of the inner container body portion 22.

Further, as shown in FIG. 3, the outer peripheral surface of the neck cylinder portion 21 has a screwed screw portion 26 and a screw notch recess 27 formed by notching a part of the neck cylinder portion 21 into a substantially concave shape. It is provided at two positions symmetrical with respect to the axis O. The screw-missing recess 27 is formed so as to be inclined along the circumferential direction between the screw-missing bottom portion 27a forming the bottom portion and both ends of the screw-missing bottom portion 27a in the circumferential direction to the upper edge portion of the neck tube portion 21. A position adjacent to the screw-missing inclined portion 27b, which is configured to have a screw-missing inclined portion 27b and a push-up portion 27c formed in a stepped shape between the screw-missing bottom portion 27a and the screw-missing inclined portion 27b. Is provided with a thin recess 27d that extends from the screw-missing inclined portion 27b toward the inside of the screw-missing recess 27 and is formed thinner than the neck tube portion 21.

The middle container side engaging projections (engagement means) 22a are projected at a plurality of positions on the outer peripheral surface of the upper end of the middle container body 22. Further, on the outer peripheral surface of the lower cylinder portion 25, a locking convex portion 28 is provided so as to project at a position facing the locking recess 15 on the outer container 10 side.
As shown in FIG. 2, the upper end of the outer cylinder portion 24 located radially outward from the predetermined intermediate height position of the inner container body 22 is provided in the portion of the inner container 20 where the screw notch recess 27 is provided. An inclined surface 29 is formed so as to incline downward toward.
Such a medium container 20 is made of, for example, a polyester-based, polystyrene-based, polyolefin-based or other synthetic resin, and is molded by, for example, injection molding.

The inner container 30 is a container that can be taken in and out of the inner container 20 and is provided at a substantially cylindrical inner container body 32 extending along the container shaft O and a lower portion of the inner container body 32. It is provided with an inner container bottom wall portion 33. The inner container 30 is placed on the upper edge of the inner container body 32, and an outer flange-shaped flange portion 34 for assembling the inner container 30 to the inner container 20 is formed. An annular peripheral wall portion 35 is suspended from the radial outer edge of the flange portion 34. The annular peripheral wall portion 35 is provided with a grip portion 36 extending downward from the annular peripheral wall portion 35 and fitting into the screw-missing recess 27 described above when the inner container 30 is mounted in the inner container 20. .. Further, at a plurality of positions on the inner peripheral surface of the annular peripheral wall portion 35, inner container side engaging protrusions (engaging means) 35a that engage with the inner container side engaging protrusions 22a on the inner container 20 side are projected. ..

The grip portion 36 is a substantially convex plate piece that hangs down from the lower end of the annular peripheral wall portion 35 along the container axis O direction, and is formed between the grip bottom portion 36a provided at the lowermost end and the grip bottom portion 36a in the circumferential direction. A pair of grip inclined portions 36b formed in an inclined shape from both ends toward the upper end of the inner container body portion 32 constituting the inner container 30, and a curved shape formed between the grip bottom portion 36a and the grip inclined portion 36b. It is formed to have an R portion 36c and the like. Further, the outer surface of the grip portion 36 is formed with the same screw shape as the screw portion 26 screwed into the neck cylinder portion 21, and a partial screw portion 37 continuous with the screw portion is formed. As a result, when the lid body 50 is removed, the screw portions 26 appear to be continuous to maintain a sense of unity in the appearance design of the container body 40, and when the grip portion 36 is gripped and pulled up with a fingertip. It is possible to exert the anti-slip effect of.
The grip portion 36 is arranged at two positions axisymmetric with respect to the container shaft O, similarly to the screw notch recess 27.
Such an inner container 30 is made of, for example, a synthetic resin such as polyester-based, polystyrene-based, or polyolefin-based, and is molded by injection molding, for example.

The lid 50 is a climax cylinder-shaped overcap screwed to the neck cylinder portion 21 of the inner container 20, and has a disc-shaped top wall portion 51 arranged orthogonally to the container shaft O and a ceiling. It includes a cylindrical peripheral wall portion 52 that hangs down from the edge of the wall portion 51. On the inner peripheral surface of the peripheral wall portion 52, a screw portion 26 on the inner container 20 and a screw portion 53 on the lid side to be screwed into the partial screw portion 37 of the inner container 30 are formed. Further, a disk-shaped packing 60 is provided inside the lid 50. The packing 60 is adhered to the lower surface of the top wall portion 51 of the lid 50, and the outer peripheral portion of the packing 60 is the lower surface of the top wall portion 51 of the lid 50 and the upper end surface of the flange portion 34 of the inner container 30. The inside of the inner container 30 is sealed by being sandwiched and sealed between the two.
The lid 50 is made of, for example, a synthetic resin such as polyester, polystyrene, or polyolefin, glass, metal, or the like, and is molded by, for example, injection molding, blow molding, press molding, or the like.

Next, the assembly of the refill container 1 will be described.
First, the inner container 20 is mounted in the outer container 10. At this time, the outer cylinder portion 24 is fitted to the inner surface of the outer container body portion 12, and the locking concave portion 15 and the locking convex portion 28 are undercut engaged, so that the inner container 20 is placed in the outer container 10. It is firmly fixed.
Next, the inner container 30 filled with the contents is positioned in the circumferential direction and then mounted in the inner container 20 to complete the container body 40. When the inner container 30 is mounted in the inner container 20, the upper edge portion of the inner container body 22 is formed in a substantially U-shape in cross section, and the upper end, the flange 34 and the annular peripheral wall portion 35 of the inner container body 32 are formed. It fits in the part surrounded by.

At this time, the inner container side engaging projection 35a and the inner container side engaging projection 22a constituting the engaging means are undercut engaged, and the inner container 30 is prevented from falling off from the inner container 20 during use or the like. To. At the same time, the grip portion 36 on the inner container 30 side is fitted into the screw missing recess 27 on the inner container 20 side, so that the screw portion 26 formed in the neck tube portion 21 and the partial screw portion 37 formed in the grip portion 36 A continuous thread screw is formed.

In a state where the grip portion 36 on the inner container 30 side is fitted into the screw notch recess 27 on the inner container 20 side, the screw notch inclined portion 27b on the inner container 20 side and the grip inclined portion 36b on the inner container 30 side are in the circumferential direction. A thin recess 27d is interposed in the gaps facing each other, and the gap between them is filled to enhance the design. Further, the push-up portion 27c is formed to have a size required for disengaging the inner container side engaging protrusion 35a and the inner container side engaging protrusion 22a constituting the engaging means, whereby the thin recess 27d It is possible to prevent the (gap) from being formed larger than necessary, and as a result, the screw missing recess 27, which is the missing range of the screw portion 26, is not formed large, and the functionality and design are not lost. It has become.

Finally, the lid side threaded portion 53 on the lid body 50 side is screwed onto the threaded portion 26 of the neck tube portion 21 and the partially threaded portion 37 of the grip portion 36 to be crowned to the upper opening end of the container body 40.

Next, the operation of the refill container 1 having the above configuration will be described.
FIG. 4 is a front view of the container body showing a state in which the inner container is rotated, FIG. 5 is a front view of the container body showing a state in which the inner container is further rotated from FIG. 4, and FIG. 6 is a further view of the inner container from FIG. It is a front view of the container body which shows the rotated state.
When the contents are used to empty the inner container 30 and the inner container 30 housed in the inner container 20 is replaced with a new inner container 30, the upper part of the container body 40 shown in FIG. 1 is first used. The lid 50 having the open end crowned is removed together with the packing 60, and the embodiment is shown in FIG.

Next, the inner container 30 is removed from the inner container 20. The first method of removing the inner container 30 from the inner container 20 is performed by pressing the pair of gripping portions 36 inward in the radial direction while grasping them from both sides with fingertips. When the grip portion 36 is pressed inward in the radial direction, the lower end of the grip portion 36 slides on the inclined surface 29 of the inner container 20 and climbs a slope, so that the inner container 30 can be moved upward. By this movement, the engagement between the inner container side engaging protrusion 35a and the inner container side engaging protrusion 22a constituting the engaging means is released, so that the inner container 30 can be easily pulled upward. Become. When the inner container 30 is pulled upward, the partial screw portion 37 forming a part of the screw shape exerts a non-slip function between the surface of the grip portion 36 and the fingertip.

The second method is performed by slightly rotating the inner container 30 in one of the circumferential directions (rightward (counterclockwise) in FIGS. 4 to 6) while grasping the pair of gripping portions 36 from both sides with fingertips. ..
As shown in FIG. 4, when the inner container 30 is rotated, of the pair of left and right R portions 36c provided on the grip portion 36, only the R portion 36c provided on the right side of the drawing lacks the screw on the inner container 20 side. It abuts on the push-up portion 27c formed in a stepped shape between the screw-missing bottom portion 27a forming the recess 27 and the screw-missing inclined portion 27b.

As shown in FIG. 5, when the inner container 30 is further rotated, the grip portion 36 enters the thin recess 27d, and only the R portion 36c on the grip portion 36 side has the shape of the push-up portion 27c forming the screw missing recess 27. The inner container 30 is moved upward by riding on the push-up portion 27c while sliding in the circumferential direction along the above. In response to the upward movement of the inner container 30, the engagement between the inner container side engaging protrusion 35a and the inner container side engaging protrusion 22a constituting the engaging means is surely released.

Therefore, after disengaging the inner container side engaging protrusion 35a and the inner container side engaging protrusion 22a, the inner container 30 can be removed from the inner container 20 by pulling up the inner container 30. it can.
When the R portion 36c on the grip portion 36 side slides in the circumferential direction along the shape of the push-up portion 27c constituting the screw missing recess 27, other parts of the grip portion 36, particularly the grip inclined portion 36b Is configured so as not to come into contact with the push-up portion 27c or the screw-missing inclined portion 27b, so that the sliding resistance can be suppressed low.

Alternatively, the inner container 30 may be further rotated from the state shown in FIG. When the inner container 30 is further rotated, as shown in FIG. 6, the gripping inclined portion 36b on the inner container 30 side comes into contact with the screw-missing inclined portion 27b on the inner container 20 side. Therefore, when the inner container 30 is further rotated continuously, the gripping inclined portion 36b can climb the screw-missing inclined portion 27b while sliding in the circumferential direction, and the inner container 30 can be largely moved upward, and the inner container 20 can be moved significantly upward. It is possible to easily remove the inner container 30 from the inside.

In the second method, in the initial stage immediately after the rotation operation, only the R portion 36c on the inner container 30 side rides on the push-up portion 27c on the inner container 20 side, and the inner container side engaging protrusion 35a and the inner container side engaging protrusion 35a By disengaging the engagement with the 22a, it is possible to make the inclination angle of the screw-missing inclined portion 27b following the push-up portion 27c gentle. As a result, the sliding resistance when the gripping inclined portion 36b slides on the screw-missing inclined portion 27b can be suppressed to a low level, and the rotational force of the inner container 30 required when moving the inner container 30 upward is possible. (Rotation torque) can be reduced, and as a result, the inner container 30 can be easily removed.

Although the configuration of the present invention and its action and effect have been described above with reference to Examples, the embodiments of the present invention are not limited to the above Examples.

For example, in the above embodiment, the case where the outer container 10 and the inner container 20 are formed as separate bodies has been described, but the present invention is not limited to the above embodiment, and the outer container 10 and the inner container 20 are not limited to the above embodiment. The configuration may be integrated with 20.

Further, in the above embodiment, the case where the rotation direction when removing the inner container 30 is set to the right direction (counterclockwise direction) in the drawing has been described, but the inner container is rotated in the left direction (clockwise direction) in the drawing. 30 may be removed.

The present invention can be used in a wider range of applications in the field of refill containers in which the inner container can be taken out.

1: Refill container 10: Outer container 12: Outer container body 13: Outer container bottom wall 14: Bottom cylinder 15: Locking recess (fixing means)
20: Middle container 21: Neck tube 22: Middle container body 22a: Middle container side locking protrusion (engagement means)
23: Inner container bottom wall 24: Outer cylinder 25: Lower cylinder 26: Screw 27: Screw missing recess 27a: Screw missing bottom 27b: Screw missing inclined portion 27c: Push-up portion 27d: Thin recess 28: Locking convex Part (fixing means)
29: Inclined surface 30: Inner container 32: Inner container body 33: Inner container bottom wall 34: Flange 35: Circular peripheral wall 35a: Inner container side locking projection (engagement means)
36: Grip part 36a: Grip bottom part 36b: Grip inclined part 36c: R part 37: Partial screw part 40: Container body 50: Lid body 51: Top wall part 52: Peripheral wall part 53: Lid body side screw part 60: Packing

Claims (4)

An inner container (30) filled with the contents, an outer container (10) exhibiting an exterior, and arranged between the inner container (30) and the outer container (10) and in the outer container (10). Between the container body (40) having the inner container (20) in which the inner container (30) is housed in the mounted state, and the outer container (10) and the inner container (20). An engaging means for engaging between the outer container (10) and the inner container (20), and a lid (50) attached to the upper open end of the container body (40). A refill container with,
The inner container (30) is provided with a grip portion (36) which is suspended from an annular peripheral wall portion (35) provided on the upper edge portion and has a partially threaded portion (37) formed on the outer surface thereof. The grip portion (36) is formed from a grip bottom portion (36a) and a pair of grip tilts formed in an inclined shape from both ends of the grip bottom portion (36a) in the circumferential direction toward the upper edge portion of the inner container (30). It is formed by having a portion (36b) and an R portion (36c) formed in a curved shape between the grip bottom portion (36a) and the grip inclined portion (36b).
The inner container (20) has a neck cylinder portion (21) having a screw portion (26) screwed on the outer peripheral surface, and a screw missing portion into which the grip portion (36) is fitted into the neck cylinder portion (21). A recess (27) is provided, and the screw-missing recess (27) is formed between a screw-missing bottom portion (27a) and both ends of the screw-missing bottom portion (27a) in the circumferential direction to the upper edge portion of the middle container (20). A pair of screw-missing inclined portions (27b) formed in an inclined shape along the circumferential direction between them, and the screw-missing bottom portion (27a) and the screw-missing inclined portion (27b) are formed. In the initial stage immediately after rotating the vessel (30), there is a push-up portion (27c) on which the R portion (36c) on the grip portion (36) side rides on and moves the inner container (30) upward. A refill container characterized by being formed in a similar manner. A thin recess (27d) is formed in the neck tube portion (21) so as to extend from the screw missing inclined portion (27b) toward the inside of the screw missing recess (27) so as to be thinner than the neck cylinder portion (21). The refill container according to claim 1. The engaging means was formed on the inner peripheral surface of the inner container side engaging protrusion (22a) formed on the outer peripheral surface of the upper end of the inner container (20) and the inner peripheral surface of the annular peripheral wall portion (35) of the inner container (30). The refill container according to claim 1 or 2, which is composed of an inner container side engaging protrusion (35a). The refill container according to any one of claims 1 to 3, wherein the outer container (10) and the inner container (20) are integrally formed.

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