Container with shaft

Abstract

To provide a container with a shaft facilitating scooping up a small amount of content liquid remaining inside a container body.SOLUTION: A container 1 with a shaft includes: a container body 2 having a mouth part 21; and a cap 3 having an application shaft 41 capable of being inserted into the inside of the container body 2 from the mouth part 21 and detachable from an outer periphery of the mouth part 21. The container body 2 includes: a bellows part 22 continuous to the mouth part 21 and stretchable in an axial direction of the container body 2; and a swollen part 23 continuous to the bellows part 22. The swollen part 23 expands to the outside in an axially orthogonal direction of the container body 2 so as to contact an inner peripheral surface of the cap 3.SELECTED DRAWING: Figure 1

Description

[Technical field]

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

[0002] A conventional container with a shaft is known in which a cap member attached to a container body includes an operating tube equipped with an applicator, and an attachment tube to which the operating tube is rotatably attached (see, for example, Patent Document 1). With this conventional container with a shaft, the applicator can be extended into the container body by rotating the operating tube of the cap member relative to the attachment tube. This allows the conventional container with a shaft to scoop up a small amount of liquid content remaining inside the container body. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-103748 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the above-mentioned conventional container with a stem, the operation of the cap member to scoop up the liquid inside is complicated.

[0005] An object of the present invention is to provide a container with a stem which makes it possible to easily scoop out a small amount of liquid content remaining inside the container body. [Means for solving the problem]

[0006] (1) The container with a shaft of the present invention is a container with a shaft comprising a container body with a mouth portion, and a cap having a shaft portion insertable into the container body from the mouth portion and removable from the outer periphery of the mouth portion, wherein the container body comprises a bellows portion connected to the mouth portion and expandable in the axial direction of the container body, and a bulge portion connected to the bellows portion, and the bulge portion bulges outward in the axial direction of the container body so as to contact the inner periphery of the cap.

[0007] (2) In the container with a shaft as described above in (1), it is preferable that the cross-sectional contour shape of the bulge is curved when viewed in a cross section including the axis of the container body.

[0008] (3) In the container with a stem of (1) or (2) above, the container body is preferably an integrally molded product made of synthetic resin.

[0009] (4) In the container with a shaft of any one of (1) to (2) above, the cap preferably has, on an inner peripheral surface of the cap, a protrusion that detachably fits into the bulge. Effect of the Invention

[0010] According to the present invention, a container with a shaft can be provided that enables the small amount of content liquid remaining inside the container body to be easily scooped up. [Brief description of the drawings]

[0011] [Figure 1] 1 is a side view, partially in cross section, showing a schematic view of a container with a shaft according to one embodiment of the present invention. [Diagram 2] FIG. 2 is a side view showing a schematic state in which the cap is pushed into the container body in order to scoop up the liquid content in FIG. [Diagram 3] FIG. 2 is a side view showing a schematic state when the cap is rotated about an axis relative to the container body in order to scoop up the liquid content or to agitate the liquid content in the container body in FIG. 1. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0012] Hereinafter, a container with a shaft according to one embodiment of the present invention will be described with reference to the drawings. However, in the following description, in order to simplify the description, the meanings of terms are defined as follows.

[0013] First, the "axial direction" refers to the direction in which the axis O of the container body 2 extends. Additionally, the "upper side in the axial direction" refers to the side on which the cap 3 (the mouth portion 21 in the case of the container body 2) is located, and the "lower side in the axial direction" refers to the side on which the container body 2 (the bottom portion 26 in the case of the container body 2) is located.

[0014] Next, the "direction perpendicular to the axis" (also referred to as the "radial direction") refers to the direction perpendicular to the axial direction. Moreover, the "inner side in the direction perpendicular to the axis" (also referred to as the "inner side in the radial direction") refers to the side closer to the axis O (also referred to simply as the "axis O") of the container body 2, and the "outer side in the direction perpendicular to the axis" (also referred to as the "outer side in the radial direction") refers to the side farther from the axis O.

[0015] In Fig. 1, reference numeral 1 denotes a container with a shaft according to one embodiment of the present invention. The container with a shaft 1 in Fig. 1 is shown in an initial state before an operation for scooping up the liquid content remaining inside the container body 2 is performed. In this embodiment, the axis of the container with a shaft 1 is coaxial with the axis O of the container body 2.

[0016] The container with shaft 1 comprises a container body 2 with a mouth portion 21, and a cap 3 which has an application shaft 41 which can be inserted into the container body 2 from the mouth portion 21 and which can be attached and detached to the outer periphery of the mouth portion 21.

[0017] The container body 2 includes a bellows portion 22 that is connected to the mouth portion 21 and is expandable and contractible in the axial direction of the container body 2, and a bulge portion 23 that is connected to the bellows portion 22. The bulge portion 23 bulges outward in the direction perpendicular to the axis of the container body 2 so as to contact the inner peripheral surface f3 of the cap 3.

[0018] In this embodiment, the container body 2 is a bottle container extending in the axial direction. In this embodiment, the container body 2 has a bottle shape with a circular (annular) cross section extending in the axial direction. The container body 2 includes, along the axial direction, a bellows portion 22 connected to the mouth portion 21, a bulge portion 23 connected to the bellows portion 22, a shoulder portion 24 connected to the bulge portion 23, a body portion 25 connected to the shoulder portion 24, and a bottom portion 26 connected to the body portion 25. In this embodiment, the lower end of the body portion 25 is closed by the bottom portion 26. Inside the container body 2, a storage space S for storing the content liquid is formed. The storage space S is connected to the outside world through an opening formed at the upper end of the mouth portion 21.

[0019] In this embodiment, the container body 2 is an integrally molded product made of synthetic resin. The container body 2 can be, for example, a blow molded product formed by blow molding. Examples of synthetic resins include polypropylene (PP), polyethylene (PE), and polyethylene terephthalate (PET).

[0020] The bottom portion 26 is continuous at its axial upper side with the body portion 25. In this embodiment, the axial outer edge of the bottom portion 26 is continuous with the lower end of the body portion 25. In this embodiment, the bottom portion 26 includes an annular ground portion 26a and a bottom-raised portion 26b disposed inside the ground portion 26a.

[0021] Moreover, the upper side of the body portion 25 in the axial direction is continuous with the shoulder portion 24. In this embodiment, the upper end of the body portion 25 is continuous with the lower end of the shoulder portion 24.

[0022] The shoulder portion 24 also continues, at an upper side in the axial direction, to the bulge portion 23. In this embodiment, the upper end of the shoulder portion 24 continues to the lower end of the bulge portion 23.

[0023] Moreover, the bulge 23 is connected, at its upper side in the axial direction, to the bellows portion 22. In this embodiment, the upper end of the bulge 23 is connected to the lower end of the bellows portion 22.

[0024] The bellows portion 22 is connected at its upper side in the axial direction to the mouth portion 21 so as to be extendable and scalable. In this embodiment, the upper end of the bellows portion 22 is connected to the lower end of the mouth portion 21. In this embodiment, the bellows portion 22 can be extended and scalable in the axial direction between the mouth portion 21 and the bulge portion 23.

[0025] 1, in this embodiment, the cross-sectional contour shape of the bulge 23 when viewed in a cross section including the axis O is a curved shape. In this embodiment, the curved shape of the bulge 23 is formed by a curved portion r that is convex outward in the axis perpendicular direction at the outermost portion of the bulge 23 in the axis perpendicular direction. However, the cross-sectional contour shape of the bulge 23 when viewed in a cross section including the axis O may be an angular shape having an edge. In this case, the outermost portion of the bulge 23 in the axis perpendicular direction is formed by, for example, a broken line.

[0026] Moreover, in this embodiment, the bulge portion 23 extends circumferentially around the axis O over the entire circumference. In this embodiment, the bulge portion 23 is circular (annular) when viewed from the axial direction. However, the bulge portion 23 does not have to be circular (annular) when viewed from the axial direction. For example, the bulge portion 23 can be polygonal when viewed from the axial direction. Moreover, the bulge portion 23 does not have to extend circumferentially around the axis O over the entire circumference. For example, the bulge portion 23 can be a plurality of bulges (convex portions), at least three or more, locally around the axis O.

[0027] In this embodiment, the cap 3 includes an inner cap 31 that is detachable from the outer periphery of the mouth 21 of the container body 2, and an outer cap 32 that is attached to the outside of the inner cap 31. In this embodiment, the inner cap 31 and the outer cap 32 are integrally configured. That is, in this embodiment, the inner cap 31 and the outer cap 32 are configured as one cap 3 as a whole. In this embodiment, the inner periphery of the inner cap 31 is provided with an internal thread portion 31a that screws into an external thread portion 21a provided on the outer periphery of the mouth 21 of the container body 2. This allows the cap 3 to be attached to the mouth 21 of the container body 2 by screwing the external thread portion 21a of the container body 2 with the internal thread portion 31a. In addition, the cap 3 can be removed from the mouth 21 of the container body 2 by loosening the cap 3 and releasing the screwing between the external thread portion 21a of the container body 2 and the internal thread portion 31a.

[0028] Furthermore, in this embodiment, the inner cap 31 is accommodated inside the outer cap 32. In this embodiment, the upper part of the cap 3 has a double structure of the outer cap 32 and the inner cap 31. On the other hand, in this embodiment, the lower part of the cap 3 is only the outer cap 32. Therefore, in this embodiment, the inner circumferential surface of the lower part of the cap 3 among the inner circumferential surfaces of the cap 3 is composed only of the inner circumferential surface f3 of the outer cap 31. That is, in this embodiment, the inner circumferential surface of the lower part of the cap 3 is the inner circumferential surface f3 of the outer cap 32. Therefore, in this embodiment, the inner circumferential surface f3 of the outer cap 32 can be brought into contact with the outer circumferential portion of the bulge 23 of the container body 2 as the inner circumferential surface of the cap 3. The inner circumferential surface f3 of the outer cap 32 is held by the bulge 23 of the container body 2 when the cap 3 is attached to the mouth 21 of the container body 2 as shown in FIG. 1.

[0029] Furthermore, in this embodiment, the cap 3 is provided with a protrusion 32a on the inner peripheral surface of the cap 3 that removably fits into the bulge 23. In this embodiment, the inner peripheral surface f3 of the outer cap 32 is provided with a protrusion 32a that protrudes radially inward. In this embodiment, the protrusion 32a is provided on the inner peripheral surface at the lower end of the outer cap 32, i.e., the inner peripheral surface at the lower end of the cap 3. The protrusion 32a provided on the outer cap 32 removably fits into the bulge 23 of the container body 2. In this embodiment, the protrusion 32a of the outer cap 32 removably fits into the axial lower side of the bulge 23 of the container body 2 when the cap 3 is attached to the container body 2, as shown in FIG. 1.

[0030] Furthermore, in this embodiment, the cap 3 includes an application shaft (shaft) 41 attached to the inner cap 31 and an application part 42 attached to the tip (lower end) of the application shaft 41 as a shaft part provided on the cap 3. The liquid contained in the container body 2 can be scooped up by the application part 42. In this embodiment, the upper end 41a of the application shaft 41 includes a convex part 41b that fits into a concave part 31b formed on the inner peripheral surface of the inner cap 31 at the outer periphery of the upper end 41a. As a result, in this embodiment, the application shaft 41 is attached to the inner cap 31, i.e., the cap 3. In this embodiment, a recess 41n is formed in the upper end 41a of the application shaft 41, with the upper end of the upper end 41a being open. In this embodiment, an annular step part 41s capable of accommodating a flange part 52 of the squeezing tube member 5 described later is formed on the axial lower side of the upper end 41a of the application shaft 41. The applicator 42 can be formed by, for example, a brush, a writing brush, or a sponge. In this embodiment, the applicator 42 is curved with respect to the applicator axis 41. This makes it possible to easily scoop up a larger amount of the content liquid remaining in the storage space S of the container body 2. However, the applicator 42 can also be configured to extend on the same axis (axis O) as the applicator axis 41.

[0031] Further, in this embodiment, the reference numeral 5 denotes a squeezing cylinder member for squeezing off excess content liquid adhering to the application part 42. The squeezing cylinder member 5 includes a fitting cylinder part 51 that fits inside the mouth part 21, an annular flange part 52 that protrudes radially outward from the upper end part of the fitting cylinder part 51, a squeezing piece 53 that protrudes radially inward from the inner peripheral surface of the fitting cylinder part 51, and an annular engagement part 54 that protrudes radially outward from the lower end part of the fitting cylinder part 51. The squeezing cylinder member 5 is formed of a soft material that can be elastically deformed. Examples of such soft materials include nitrile rubber (NBR), low density polyethylene (LDPE), and linear low density polyethylene (LLDPE). When the application shaft 41 is pulled out from the container body 2, the squeezing piece 53 squeezes the application shaft 41 and the application part 42, so that the excess content liquid adhering to the application part 42 can be squeezed off.

[0032] The application shaft 41 is provided on the cap 3, and can be moved (displaced) integrally with the cap 3. Therefore, the application shaft 41 can be inserted into the container body 2 by an amount corresponding to the amount of screwing of the cap 3 (amount of movement downward in the axial direction) by screwing the cap 3 into the mouth portion 21 of the container body 2. In this embodiment, the upper end portion 41a of the application shaft 41 contacts the upper end of the mouth portion 21 via the flange portion 52 of the squeezing tube member 5 when the cap 3 is attached to the mouth portion 21 of the container body 2, as shown in FIG. 1. In this embodiment, the flange portion 52 of the squeezing tube member 5 contacts the upper end portion 41a of the application shaft 41 by being accommodated in a step portion 41s formed on the axial lower side of the upper end portion 41a of the application shaft 41 when the cap 3 is attached to the mouth portion 21 of the container body 2. As a result, in this embodiment, the cap 3, when attached to the mouth 21 of the container body 2, contacts the upper end of the mouth 21 via the flange 52 of the squeezing tube member 5. Therefore, in this embodiment, the downward axial movement of the cap 3 is limited by the upper end 41a of the application shaft 41 contacting the flange 52 of the squeezing tube member 5.

[0033] Next, an example of a method of using the shaft-equipped container 1 will be described with reference to the drawings.

[0034] The container 1 with a shaft in FIG. 1 allows the liquid content to be removed from the storage space S of the container body 2 in the same manner as existing containers with a shaft. For example, by first loosening the cap 3 of the container 1 with a shaft in FIG. 1, the cap 3 can be removed from the container body 2. With the container 1 with a shaft, by separating the cap 3 from the container body 2, the applicator part 42 can be pulled out from the container body 2 together with the applicator shaft 41 through the squeezing tube member 5. This allows the user to apply the liquid content held in the applicator part 42 to a desired area, in the same manner as existing containers with a shaft.

[0035] Next, a method for scooping out the content liquid when the remaining amount of the content liquid in the container body 2 becomes small will be described.

[0036] When the amount of liquid content in the container body 2 becomes low, if the user pushes the top wall portion (upper wall portion) 3a of the cap 3 of the container 1 with a shaft in FIG. 1 downward in the axial direction, the bellows portion 22 of the container body 2 is compressed between the mouth portion 21 and the bulge portion 23. As a result, the cap 3 moves downward in the axial direction relative to the container body 2 by an amount that the bellows portion 22 of the container body 2 has shrunk due to compression. As a result, the application shaft 41 provided on the cap 3 also moves downward in the axial direction relative to the container body 2 by an amount that the bellows portion 22 has shrunk due to compression. Therefore, if the user pushes in the cap 3, the application portion 42 can reach the bottom 26 of the container body 2 while the cap 3 is still closed, as shown in FIG. 2.

[0037] Next, when the user moves the cap 3 outward in the direction perpendicular to the axis, the bellows portion 22 of the container body 2 is bent and deformed in the direction in which the cap 3 is tilted. As a result, the cap 3 is tilted relative to the container body 2 by the amount of bending deformation of the bellows portion 22 of the container body 2. As a result, the application shaft 41 provided on the cap 3 is also tilted relative to the container body 2 by the amount of bending deformation of the bellows portion 22. In this way, if the cap 3 is tilted from the bulge portion 23 of the container body 2 as a starting point while pushing the cap 3 downward in the axial direction, the application portion 42 can reach the radially outer corner of the bottom portion 26 of the container body 2. Furthermore, in the method described in this embodiment, the cap 3 is rotated in the circumferential direction around the axis O. As a result, as shown by the arrow in FIG. 3, the cap 3 rotates so as to draw an inverted cone shape around the axis O, starting from the area between the bellows portion 22 and the bulge portion 23 of the container body 2. In this way, if the cap 3 is rotated while being tilted from the bulge 23 of the container body 2 as a starting point while being pressed downward in the axial direction, the applicator 42 can reach the entire circumference of the radially outer corner of the bottom 26 of the container body 2. After that, if the force applied to the cap 3 is released, the applicator 42 returns to the initial state of FIG. 1 together with the cap 3 with respect to the container body 2 due to the extension (restoration) of the bellows portion 22 of the container body 2. This allows a small amount of content liquid remaining in the container body 2, for example, a small amount of content liquid remaining on the inner surface of the bottom 26, to be scooped from the inner surface of the bottom 26 of the container body 2. Then, if the cap 3 is removed from the mouth 21 of the container body 2, the applicator shaft 41 and the applicator 42 can be pulled out of the container body 2 through the squeezing tube member 5. This allows the user to apply the small amount of content liquid remaining inside the container body 2 to a desired area as the content liquid held in the applicator 42.

[0038] Additionally, in the container 1 with a shaft, the inner circumferential surface f3 of the outer cap 32 of the cap 3 contacts the bulge 23 of the container body 2 as the inner circumferential surface of the cap 3. Therefore, according to the container 1 with a shaft, the cap 3, i.e., the application shaft 41 (application part 42) can be easily tilted with respect to the axis O or easily rotated around the axis O, starting from the bulge 23 with which the inner circumferential surface f3 of the outer cap 32 contacts.

[0039] As described above, with the container 1 with a shaft, the small amount of liquid content remaining inside the container body 2 can be easily scooped up. With the container 1 with a shaft, the inner circumferential surface of the cap 3 (the inner circumferential surface f3 of the outer cap 32) is in contact with the bulge 23 of the container body 2 when the cap 3 is attached to the container body 2. In this case, even when the container 1 with a shaft is stored after the cap 3 is attached to the container body 2, the lower end of the cap 3 is not able to move freely with respect to the container body 2, so that the cap 3 is less likely to rattle with respect to the container body 2. That is, in the container 1 with a shaft, the configuration in which the inner circumferential surface of the cap 3 is in contact with the bulge 23 of the container body 2 also serves to prevent the cap 3 from rattling with respect to the container body 2.

[0040] Particularly, in this embodiment, the cap 3 is provided on the inner peripheral surface f3 of the cap 3 with a protrusion 32a that is removably fitted into the bulging portion 23 of the container body 2. Specifically, the protrusion 32a of the outer cap 32 is a protrusion provided on the inner peripheral surface of the cap 3, and is removably fitted into the bulging portion 23 of the container body 2 in a state in which the cap 3 is attached to the mouth portion 21 of the container body 2. Therefore, in this embodiment, the cap 3 is separated from the container body 2 by the protrusion 32a provided on the outer cap 32 climbing over the bulging portion 23 of the container body 2 from above in the axial direction. Therefore, according to this embodiment, the cap 3, i.e., the application shaft 41 (application portion 42), can be more easily tilted with respect to the axis O or more easily rotated around the axis O, starting from the bulging portion 23 with which the inner peripheral surface f3 of the outer cap 32 comes into contact.

[0041] Furthermore, the container 1 with a shaft can accommodate the application part 42 (application shaft 41) inside the container body 2 in the same manner as existing containers with a shaft. For example, by inserting the application part 42 (application shaft 41) inside the squeezing tube member 5 and screwing the cap 3 onto the mouth part 21 of the container body 2, the application part 42 together with the application shaft 41 can be accommodated in the accommodation space S of the container body 2. At this time, the cap 3 is screwed onto the mouth part 21 of the container body 2 until the protrusion part 32a of the outer cap 32 fits axially below the bulge part 23 of the container body 2. This allows the cap 3 to be securely attached to the container body 2.

[0042] The above description is an exemplary method of the container with a shaft 1. For example, the method (operation) of pushing the cap 3 downward in the axial direction and rotating it around the axis O can be performed even when the amount of content liquid remaining inside the container body 2 is not small. In this case, the application shaft 41 (and the application part 42) arranged in the storage space S of the container body 2 can be used to stir the content liquid filled in the storage space S.

[0043] In this embodiment, the cross-sectional contour shape of the bulge 23 is curved. By making the cross-sectional contour shape of the bulge 23 curved, the contact area between the inner peripheral surface f3 of the outer cap 32 and the outer peripheral portion of the bulge 23 can be reduced. In this case, the cap 3, i.e., the application shaft 41 (application portion 42) can be smoothly tilted with respect to the container body 2. Therefore, in this case, the container with shaft 1 is easy to use.

[0044] In this embodiment, the container body is an integrally molded product made of synthetic resin, which makes it possible to easily manufacture the container 1 with a shaft.

[0045] The above is an exemplary embodiment of the present invention. Therefore, the present invention is not limited to the above embodiment, and can be modified in various ways within the scope of the claims. For example, in the cap 3 according to this embodiment, the outer cap 32 is formed of one part, but can also be composed of multiple parts. Specifically, the outer cap 3 can be composed of two parts, an axially upper part provided with the application shaft 41, and an axially lower part detachable from the axially upper part. In this case, the axially lower part can function as a cover that covers the bellows part 22 and the bulge part 23 of the container body 2 when the cap 3 is attached to the container body 2. As a result, the outer cap composed of the two parts in this example can function in the same way as the outer cap 32 according to this embodiment when the cap 3 is attached to the container body 2. In addition, when the cap 3 is removed from the container body 2, the outer cap composed of two parts in this example can leave the axially lower part on the side of the container body 2 by separating the axially upper part from the axially lower part. As a result, when the cap 3 is removed from the container body 2, the axially lower part covers the bellows part 22 and the bulge part 23 of the container body 2, thereby protecting the bellows part 22 and the bulge part 23 and also functioning as a screen. Examples of the content liquid contained in the container body 2 include cosmetic liquid, medicinal liquid, adhesive liquid, cleaning liquid, etc. Specific examples of cosmetic liquid include mascara, eyeliner, lip gloss, etc. [Explanation of symbols]

[0046] 1: container with shaft, 2: container body, 21: mouth, 21a: male thread, 22: bellows, 23: bulge, 24: shoulder, 25: body, 26: bottom, 26a: annular grounding portion, 26b: bottom raised portion, 3: cap, 3a: upper portion of cap, 31: inner cap, 31a: female thread, 32: outer cap, 32a: protrusion provided on outer cap, 41: application shaft (shaft), 42: application portion, 5: squeezing tube member, 51: fitting tube, 52: annular flange, 53: squeezing piece, 54: annular engagement portion, f3: inner peripheral surface of outer cap (inner peripheral surface of cap), O: axis

Claims

1. A container with a shaft comprising: a container body having a mouth; and a cap having a shaft portion insertable into the container body from the mouth and detachable around the outer periphery of the mouth, A container with an axis, wherein the container body has a bellows portion connected to the mouth portion and capable of expanding and contracting in the axial direction of the container body, and a bulge portion connected to the bellows portion, the bulge portion bulging outward in the axial direction of the container body so as to contact the inner surface of the cap.

2. 2. The container with a shaft according to claim 1, wherein the cross-sectional contour shape of the bulge is curved when viewed in a cross section including the axis of the container body.

3. 2. The container with a stem according to claim 1, wherein the container body is an integrally molded product made of synthetic resin.

4. The container with a shaft according to any one of claims 1 to 3, wherein the cap has an inner peripheral surface provided with a protrusion that detachably fits into the bulge.

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