U.S. patent application number 17/434313 was filed with the patent office on 2022-05-12 for cosmetics container.
The applicant listed for this patent is AMG Co., Ltd.. Invention is credited to Hiroki HASEGAWA.
Application Number | 20220142331 17/434313 |
Document ID | / |
Family ID | 1000006152336 |
Filed Date | 2022-05-12 |
United States Patent
Application |
20220142331 |
Kind Code |
A1 |
HASEGAWA; Hiroki |
May 12, 2022 |
COSMETICS CONTAINER
Abstract
The cosmetics container of the present invention has a container
main body formed by inserting the inner container inside the outer
container, wherein a groove portion is formed in the outer surface
of the inner container with a length in the lengthwise direction of
the inner container longer than the length in the direction
orthogonal to the longitudinal direction, and the groove portion is
configured to pass through to the outside of the container main
body when the inner container is inserted into the outer
container.
Inventors: |
HASEGAWA; Hiroki;
(Bunkyo-ku, Tokyo, JP) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
AMG Co., Ltd. |
Bunkyo-ku, Tokyo |
|
JP |
|
|
Family ID: |
1000006152336 |
Appl. No.: |
17/434313 |
Filed: |
November 13, 2019 |
PCT Filed: |
November 13, 2019 |
PCT NO: |
PCT/JP2019/044599 |
371 Date: |
August 26, 2021 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
A45D 2200/05 20130101;
A45D 34/045 20130101 |
International
Class: |
A45D 34/04 20060101
A45D034/04 |
Claims
1. A cosmetics container comprising: a container main body formed
having an inner container inserted inside an outer container;
wherein a main body portion of the inner container is configured of
a base portion and an enlarged diameter portion which is provided
upper side of the base portion; the container main body is
configured so that the distance between an inner surface of the
outer container and an outer surface of the inner container becomes
larger toward the bottom; a groove portion is formed across an
outer peripheral surface of the base portion and an outer
peripheral surface of the enlarged diameter portion; the groove
portion is formed having a length in the lengthwise direction of
the inner container longer than a length in the direction
orthogonal to the lengthwise direction; the length in the
lengthwise direction of the groove portion is defined by the
distance between the inner surface of the outer container and the
outer surface of the inner container; and the groove portion is
configured so that when the inner container is inserted into the
outer container, the groove portion passes through the outside of
the container main body.
2. (canceled)
3. The cosmetics container according to claim 12, wherein a width
of the groove portion is configured so as to become larger toward
the upper end of the inner container.
4. The cosmetics container according to claim 1, wherein the groove
portion is configured of a first groove portion formed in the
enlarged diameter portion, and a second groove portion formed
across the enlarged diameter portion and the base portion; a width
of the second groove portion becomes larger toward the upper end of
the inner container; and a width of the first groove portion is
configured to be smaller than the largest width of the second
groove portion.
5. The cosmetics container according to claim 1, wherein a
direction in which the groove portion extends has a directional
component orthogonal to the lengthwise direction.
6. The cosmetics container according to claim 1, wherein the groove
portion has a spiral portion formed in a spiral shape and a linear
portion formed in a straight line connecting predetermined
positions of the spiral portion.
7. The cosmetics container according to claim 1, wherein the outer
container and the inner container have a circular cross section in
a direction orthogonal to the lengthwise direction; the inner
container is made of resin; and the diameter of the enlarged
diameter portion of the main body portion of the inner container is
formed to be a predetermined degree larger than the diameter of the
upper end portion of the inner peripheral surface of the outer
container.
8. The cosmetics container according to 1, comprising a cap formed
by inserting the inner cap inside the outer cap; wherein a space
exists between an upper end portion of the inner cap and a ceiling
surface of the outer cap; a plurality of cap groove portions are
formed on the outer surface of the inner cap; a length of each of
the cap groove portions in the lengthwise direction is longer than
a length in the direction orthogonal to the lengthwise direction is
formed; and among the plurality of the cap groove portions, some of
the cap groove portions are configured to pass through the space
and the outside of the cap; and the outer cap groove portions are
configured to pass through the space and not to the outside.
9. (canceled)
10. The cosmetics container according to claim 8, wherein a width
of the cap groove portions which is configured to pass through the
outside of the cap is configured to become narrow at a
predetermined position near the lower end of the groove portion.
Description
TECHNICAL FIELD
[0001] The present invention relates to a cosmetics container.
BACKGROUND ART
[0002] In the manufacturing process of a cosmetics container, it is
important to securely connect its parts to each other.
[0003] Many techniques relating to a container for holding mascara
have been proposed (for example, Patent Literature 1).
CITATION LIST
Patent Literature
[Patent Literature 1] JP 2005-125021
SUMMARY OF INVENTION
Technical Problem
[0004] In Patent Document 1, mascara is held in a bottle 2.
Meanwhile, when a cosmetics container formed by arranging an inner
container for holding mascara inside an outer container
(hereinafter referred to as "double container") is adopted, the
outer container and the inner container need to be securely
connected. For connecting the outer container and the inner
container, for example, a thermoplastic resin is used as a
connecting material. In this case, the melted thermoplastic resin
is placed between the outer container and the inner container;
however, there are times where the gas existing between the outer
container and the inner container expands making it difficult to
connect the outer container and the inner container. Further, even
if the outer container and the inner container are successfully
connected at one point to begin with, in the subsequent
sterilization process, the gas existing between the outer container
and the inner container also expands due to heating and may cause
the connection established between the outer container and the
inner container to become defective.
[0005] Based on the above, the present invention provides a
cosmetics container in which an outer container and an inner
container are securely connected.
Solution to Problem
[0006] A first invention is a cosmetics container, which is a
cosmetics container having a container main body formed having an
inner container inserted in the inside of an outer container;
wherein on an outer surface of the inner container, a groove
portion is formed having a length in the lengthwise direction of
the inner container longer than a length in the direction
orthogonal to the lengthwise direction; and the groove portion is
configured so that when the inner container is inserted in the
outer container, the groove portion passes through the outside of
the container main body.
[0007] According to the configuration of the first invention, since
the groove portion formed on the outer surface of the inner
container is configured to pass through the outside of the
container main body, when the gas expands between the inner
container and the outer container, it is discharged to the outside
of the container main body. Therefore, even if the gas expands when
the inner container and the outer container are connected, since
the expanded gas is discharged to the outside through the groove
portion, it is possible to securely connect the inner container and
the outer container.
[0008] A second invention is the cosmetics container according to
the configuration of the first invention, wherein the container
main body is formed so that the distance between an inner surface
of the outer container and an outer surface of the inner container
becomes larger toward the bottom, and the length of the groove
portion in the lengthwise direction is defined by the distance.
[0009] When the distance between the inner surface of the outer
container and the outer surface of the inner container is
sufficiently large, since the resistance for gas to pass between
the outer container and the inner container is small, the groove
portion is unnecessary. Meanwhile, when the distance is not
sufficiently large, the groove portion is useful because the
resistance for the gas to pass between the outer container and the
inner container is large. In this regard, according to the
configuration of the second invention, since the length of the
groove portion is defined by the distance between the inner surface
of the outer container and the outer surface of the inner
container, it is possible for the groove portion to be formed with
a necessary and sufficient length.
[0010] A third invention is the cosmetics container according to
the configuration of the second invention, wherein a width of the
groove portion is configured so as to become larger toward the
upper end of the inner container.
[0011] In a cosmetics container, the outer container and the inner
container are positioned at their respective upper ends. That is,
at the upper ends of the outer container and the inner container,
the inner surface of the outer container and the outer surface of
the inner container are in contact with each other. Since the
larger the distance between the inner surface of the outer
container and the outer surface of the inner container, the smaller
the resistance for gas to pass through, the width of the groove is
sufficient even if it is narrow (even if it is small). Since the
smaller the distance between the inner surface of the outer
container and the outer surface of the inner container, the greater
the resistance for gas to pass through, it is better that the width
of the groove be wider (larger). Since the distance between the
inner surface of the outer container and the outer surface of the
inner container is configured to increase toward the bottom, the
resistance for gas to pass through increases toward the upper end
of the inner container. In this regard, according to the
configuration of the third invention, since the width of the groove
portion is configured to increase toward the upper end of the
container, it is possible to take in the expanded gas into the
groove portion and release to the outside even near the upper end
of the container main body.
[0012] A fourth invention is the cosmetics container according to
the configuration of the second invention, wherein the groove
portion is configured of a first groove portion formed in a
predetermined range near the upper end of the inner container and a
second groove portion formed continuous to the first groove
portion; the second groove portion extends to a predetermined
position in the predetermined range and the width becomes larger
toward the upper end of the inner container; and the width of the
first groove portion is configured to be smaller than the largest
width of the second groove portion.
[0013] In a container in which the inner container is inserted into
the outer container, the inner container and the outer container
are positioned near the upper ends of the respective containers.
Therefore, in order to reduce the resistance for gas to pass
through in the vicinity of the upper end of the container, it is
desirable that the width of the groove portion to be large, but
from the viewpoint of positioning, the width of the groove portion
is preferably small. Here, the groove portion functions not only as
a passage through which the gas passes, but also as a buffer
portion for holding the gas. In other words, since the expanded gas
is retained in the groove portion, the expansion of the gas does
not immediately affect the connection between the outer container
and the inner container. Therefore, a large groove portion width
does not necessarily need to be maintained up to the upper end. In
this respect, according to the configuration of the fourth
invention, since the width of the groove portion is configured to
increase toward the upper end in the second groove portion while
the width of the first groove portion is configured to be smaller
than the largest width of the second groove portion, the problem of
the gas expansion impairing the connection between the outer
container and the inner container is resolved while also fulfilling
the request to minimize resistance for gas to pass through and the
request to secure the positioning of the outer container and the
inner container.
[0014] A fifth invention is the cosmetics container according to
the configuration of any one of the first through fourth
inventions, wherein the direction in which the groove portion
extends has a directional component orthogonal to the lengthwise
direction.
[0015] According to the configuration of the fifth invention, since
the position where the expanded gas can flow into the groove
portion increases in the direction orthogonal to the lengthwise
direction, the expanded gas can be efficiently taken into the
groove portion.
[0016] A sixth invention is the cosmetics container according to
the configuration of any one of the first through fifth inventions,
wherein the groove portion has a spiral portion formed in a spiral
shape and a linear portion formed in a straight line connecting
predetermined positions of the spiral portion.
[0017] According to the configuration of the sixth invention, since
the expanded gas can flow into the groove portion at any position
in the direction orthogonal to the lengthwise direction, the
expanded gas can be efficiently taken into the groove portion.
[0018] A seventh invention is the cosmetics container according to
the configuration of any one of the first through sixth inventions,
wherein the outer container and the inner container have a circular
cross section in a direction orthogonal to the lengthwise
direction; the inner container is made of resin; and the diameter
of a predetermined range near the upper end of the outer peripheral
surface of the inner container is formed to be a predetermined
degree larger than the diameter of the inner peripheral surface of
the outer container.
[0019] According to the configuration of the seventh invention, the
diameter of the outer peripheral surface of the inner container is
formed to be a predetermined degree larger than the diameter of the
inner peripheral surface of the outer container. Therefore, when
the inner container is inserted into the outer container, the resin
inner container elastically deforms and shrinks. Then, when the
insertion is completed, a force acts so that the inner container
presses the outer container from the inside to the outside. As a
result, the inner container is firmly connected to the outer
container.
[0020] An eighth invention is the cosmetics container according to
the configuration of any one of the first through seventh
inventions, which has a cap formed by inserting an inner cap inside
an outer cap; wherein on the outer surface of the inner cap, a cap
groove portion is formed having a portion whose length in the
lengthwise direction is longer than the length in the direction
orthogonal to the lengthwise direction; and the cap groove portion
is configured to pass through the outside of the cap when the inner
cap is inserted into the outer cap.
[0021] According to the configuration of the eighth invention,
since the cap groove portion formed on the outer surface of the
inner cap is configured to lead to the outside of the cap, when the
inner cap and the outer cap are connected, any gas that may have
expanded therebetween is discharged to the outside of the cap main
body. Therefore, even if the gas expands when the inner cap and the
outer cap are connected, since those effects are eliminated by the
groove portion, it is possible to securely connect the inner cap
and the outer cap.
[0022] A ninth invention is the cosmetics container according to
the configuration of the eighth invention, wherein a space exists
between the outer surface of the inner cap and the inner surface of
the outer cap; a plurality of the cap groove portions are formed on
the outer surface of the inner cap; of the plurality of cap groove
portions, a portion of cap groove portions is configured to pass
through the space and the outside of the cap; and the other cap
groove portion is configured to pass through the space and not to
the outside.
[0023] Having all the groove portions pass through both the space
and the outside of the cap is desirable from the viewpoint that the
resistance for gas to pass through is small. Meanwhile, with the
cap in which the inner cap is inserted into the outer cap, the
inner cap and the outer cap are positioned with each other in the
vicinity of their respective lower ends. The lower ends of the
inner cap and the outer cap serve as a boundary with the outside of
the cap. For positioning, it is desirable that there is no cap
groove portion at the lower end of the inner cap, but if there is
no cap groove portion at all, the expanded gas cannot be released
to the outside. In this regard, according to the configuration of
the ninth invention, since only a portion of the cap groove
portions is configured to pass through both the space and the
outside of the cap, it is possible to satisfy both the request for
positioning and the request for discharge of expanded gas. Here,
since the cap groove portion that does not pass through to the
outside is continuous with the cap groove portion that passes
through to the outside through the space, it is possible for the
expanded gas to be discharged.
[0024] A tenth invention is the cosmetics container according to
the configuration of the eighth or ninth invention, wherein the
width of the cap groove portion which is configured to pass through
the outside of the cap is configured to become narrow at a
predetermined position near the lower end of the groove
portion.
[0025] According to the configuration of the tenth invention, it is
possible to satisfy both the function of positioning the vicinity
of the lower end portion of the inner cap with the outer cap and
the function of discharging the gas to the outside.
Effect of the Invention
[0026] According to the present invention, it is possible to
provide a cosmetics container in which an outer container and an
inner container are securely connected.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] FIG. 1 is a schematic front view of a cosmetics container
according to a first embodiment of the present invention.
[0028] FIG. 2 is a schematic planar view of a cosmetics
container.
[0029] FIG. 3 is a schematic bottom view of a cosmetics
container.
[0030] FIG. 4 is a schematic front view of a cosmetics container in
a state with a lid removed.
[0031] FIG. 5 is a schematic perspective view illustrating an outer
container.
[0032] FIG. 6 is a schematic cross-sectional view of an outer
container.
[0033] FIG. 7 is a schematic perspective view illustrating an inner
container.
[0034] FIG. 8 is a schematic front view of an inner container.
[0035] FIG. 9 is a schematic planar view of an inner container.
[0036] FIG. 10 is an enlarged perspective view of a groove
portion.
[0037] FIG. 11 is an enlarged perspective view of a groove
portion.
[0038] FIG. 12 is an enlarged planar view of a groove portion.
[0039] FIG. 13 is a conceptual diagram illustrating the depth of a
groove portion and the like.
[0040] FIG. 14 is a view illustrating the relationship of the inner
peripheral surface of an outer container with the outer peripheral
surface of an inner container.
[0041] FIG. 15 is a conceptual diagram illustrating the
relationship of the inner peripheral surface of an outer container
with the outer peripheral surface of an inner container.
[0042] FIG. 16 is a conceptual diagram illustrating the
relationship of the inner peripheral surface of an outer container
with the outer peripheral surface of an inner container.
[0043] FIG. 17 is a schematic cross-sectional view illustrating an
outer cap.
[0044] FIG. 18 is a schematic front view illustrating an inner
cap.
[0045] FIG. 19 is a schematic cross-sectional view of an inner
cap.
[0046] FIG. 20 is a schematic view illustrating the state where an
inner cap is connected to an outer cap.
[0047] FIG. 21 is a conceptual diagram illustrating the state where
resin for connecting an inner cap has been applied.
[0048] FIG. 22 is a conceptual diagram illustrating the state where
resin for connecting is in a state of connecting an inner container
to an outer container.
[0049] FIG. 23 is a conceptual diagram illustrating the flow of gas
when an inner container is connected to an outer container.
[0050] FIG. 24 is a conceptual diagram illustrating the flow of gas
when an inner cap is connected to an outer cap.
[0051] FIG. 25 is a schematic view illustrating the configuration
of a container main body.
[0052] FIG. 26 is a schematic view illustrating the configuration
of a cosmetics container.
[0053] FIG. 27 is a schematic perspective view illustrating an
inner container of a second embodiment.
[0054] FIG. 28 is an enlarged perspective view of a groove
portion.
[0055] FIG. 29 is an enlarged perspective view of a groove
portion.
[0056] FIG. 30 is a schematic front view illustrating an inner
cap.
[0057] FIG. 31 is an enlarged planar view illustrating an inner
container of a third embodiment.
[0058] FIG. 32 is a schematic perspective view illustrating an
inner container of a fourth embodiment.
[0059] FIG. 33 is a schematic perspective view illustrating an
inner container of a fifth embodiment.
DESCRIPTION OF EMBODIMENTS
[0060] Hereinafter, preferred embodiments of the present invention
will be described with reference to the drawings.
First Embodiment
[0061] As illustrated in FIGS. 1 to 3, a cosmetics container 1 has
an outer container 10 and an outer cap (outer lid) 30. The
cosmetics container 1 is an example of a cosmetics container, the
outer container 10 is an example of an outer container, and the
outer cap 30 is an example of an outer cap. In the present
specification, the lengthwise direction of the cosmetics container
1 is referred to as the "lengthwise direction". The lengthwise
direction is the direction indicated by the arrow Z1 in FIG. 1. The
direction orthogonal to the lengthwise direction is referred to as
the "orthogonal direction". The orthogonal direction is the
direction indicated by the arrow X1 in FIG. 1.
[0062] An inner container 20 (see FIG. 7 and others) is inserted
inside the outer container 10 to form a container main body. An
inner cap 40 (see FIG. 18 and others) is inserted inside an outer
cap 30 to form a cap (lid). The inner container 20 is an example of
an inner container, and the inner cap 40 is an example of an inner
cap.
[0063] As illustrated in FIG. 4, when the outer cap 30 is removed
from the cosmetics container 1, the inner container 20 becomes
visible. As described above, the inner cap 40 is inserted inside
the outer cap 30. A handle 42 is connected to the inner cap 40, and
a brush 44 is connected to the handle 42. Liquid cosmetics are held
in the inner container 20. Liquid cosmetics are, for example,
mascara.
[0064] The cosmetics container 1 is formed in a size that can be
grasped and used by a user. For example, the length L1 of the
cosmetics container 1 in the lengthwise direction (see FIG. 1) is
119.5 millimeters (mm), and the maximum width LW1 in the orthogonal
direction is 16.59 mm. The length L2 of the outer container 10 is
78 mm, and the length L3 of the outer cap 30 is 41.3 mm.
[0065] The outer container 10 and the outer cap 30 are made of
metal. The metal is, for example, aluminum. The inner container 20
and the inner cap 40 are made of resin. The resin is, for example,
polypropylene. The inner container 20 and the inner cap 40 are
configured so as to be elastically deformable.
[0066] As illustrated in FIGS. 5 and 6, the outer container 10 is a
container having an upper opening. A cross section of the outer
container 10 in the orthogonal direction is formed in a circular
shape. With the outer container 10, an outer surface is referred to
as an outer peripheral surface 10a, and an inner surface is
referred to as an inner peripheral surface 10b. The outer container
10 has an open upper end portion and is configured to gradually
reduce in diameter from the upper end to the bottom. As illustrated
in FIG. 6, the upper end portion of the inner peripheral surface
10b is formed to have a diameter d1. Further, the inner peripheral
surface 10b is formed as a curved surface having a curvature radius
R1 in the lengthwise direction.
[0067] As illustrated in FIGS. 7 and 8, the inner container 20 is a
container having an upper opening. A cross section of the inner
container 20 in the orthogonal direction is formed in a circular
shape. The inner container 20 is configured of a main body portion
22 and a connecting portion 24. Male threading 24a is formed on the
connecting portion 24 so as to engage with a screw 44d (see FIG.
19) of an inner cap 40.
[0068] The main body portion 22 is configured of a base portion 22a
and an enlarged diameter portion 22b. The outer surface of the base
portion 22a is referred to as an outer peripheral surface 22a1, and
the outer surface of the enlarged diameter portion 22b is referred
to as an outer peripheral surface 22b1. A groove portion 22c is
formed across the outer peripheral surface 22a1 and the outer
peripheral surface 22b1. The groove portion 22c has a length in the
lengthwise direction longer than the length in the orthogonal
direction. The groove portion 22c passes through a shoulder surface
24b of the connecting portion 24. When the inner container 20 is
inserted into the outer container 10 and connected to form the
container main body, the groove portion 22c is connected to the
outside of the container main body. That is, the groove portion 22c
is open on the shoulder surface 24b.
[0069] As illustrated in FIG. 8, the outer circumference of the
enlarged diameter portion 22b is formed to have a diameter d2. The
diameter d2 is a predetermined degree larger than the diameter d1
of the upper end portion of the inner peripheral surface 10b of the
outer container 10. The predetermined degree is defined in a
predetermined numerical range. For example, with respect to the
diameter d1, the diameter d2 is larger in the numerical range of
0.2% or more and 0.7% or less. For example, the diameter d1 is 14.8
mm and the diameter d2 is 14.85 mm.
[0070] The base portion 22a is formed in the lengthwise direction
as a curved surface having a curvature radius R2. The curvature
radius R2 is smaller than the curvature radius R1 of the outer
container 10 by a predetermined degree. The predetermined degree is
specified in a predetermined numerical range. For example, with
reference to the curvature radius R1, the curvature radius R2 is
smaller in the numerical range of 0.03% or more and 0.08 or less.
For example, the curvature radius R1 is 938 mm and the curvature
radius R2 is 937.55 mm.
[0071] The groove portion 22c is configured of a first groove
portion 22c1 and a second groove portion 22c2. The first groove
portion 22c1 and the second groove portion 22c2 are formed as a
continuous integrated groove. More specifically, the recess of the
enlarged diameter portion 22b formed by the first groove portion
22c1 with respect to the outer peripheral surface 22b1 and the
recess of the outer peripheral surface 22b1 and the base portion
22a formed by the second groove portion 22c2 with respect to the
outer peripheral surface 22a1 are continuous and integrated.
[0072] As illustrated in FIG. 9, a plurality of groove portions 22c
(first groove portion 22c1 and second groove portion 22c2) are
formed on the outer peripheral surface 22a1 of the base portion 22a
and the outer peripheral surface 22b1 of the enlarged diameter
portion 22b. Specifically, four groove portions 22c are formed on
the outer peripheral surfaces 22a1 and 22b1 with a deviation of 90
degrees.
[0073] As illustrated in FIGS. 10 to 13, the first groove portion
22c1 is formed in a predetermined range near the upper end of the
inner container 20. FIG. 10 is an enlarged view of the groove
portion 22c viewed from above, and FIG. 11 is an enlarged view of
the groove portion 22c viewed from below. In the present
specification, "near the upper end" of the inner container 20 means
the enlarged diameter portion 22b. The first groove portion 22c1 is
formed in a predetermined range including the upper end of the
enlarged diameter portion 22b in the lengthwise direction. The
predetermined range is, for example, a portion 22b1a of FIGS. 12
and 13. The first groove portion 22c1 passes through the shoulder
surface 24b. That is, the first groove portion 22c1 is open on the
shoulder surface 24b.
[0074] The second groove portion 22c2 is formed continuously with
the first groove portion 22c1. The second groove portion 22c2
extends from the base portion 22a to a position within a
predetermined range of the enlarged diameter portion 22b. The
predetermined range of the enlarged diameter portion 22b is, for
example, the portion 22b1b of FIGS. 12 and 13. The width of the
second groove portion 22c2 is formed so as to increase toward the
upper end of the inner container 20.
[0075] As illustrated in FIG. 12, the first groove portion 22c1 is
formed to have a width w1. With the second groove portion 22c2, the
largest width is formed as the width w2. The width w1 is smaller
than the width w2.
[0076] As illustrated in FIG. 13, the first groove portion 22c1 is
formed with a depth e1. The second groove portion 22c2 is formed
with a depth e2 in the portion 22b1b and is formed with a depth e3
in the base portion 22a. The depth e1 is shallower than the depth
e3, and the depth e3 is shallower than the depth e2. That is, the
expression of "e1<e3<e2" (Expression 1) is satisfied.
[0077] The relationship between the outer peripheral surfaces 22a1
and 22b1 of the inner container 20 and the inner peripheral surface
10b of the outer container 10 when the inner container 20 is
inserted into the outer container 10 to form the container main
body will be described while referencing FIG. 14. The outer
peripheral surface 22a1 is divided into outer peripheral surfaces
22a1 to 22a3 in accordance with the height from the upper end
portion, and the bottom portion is designated as the bottom portion
22a4. Similarly, the inner peripheral surface 10b is divided into
inner peripheral surfaces 10b0 to 10b3 according to the height from
the upper end portion, and the bottom portion is designated as the
bottom portion 10b4.
[0078] The inner container 20 and the outer container 10 are
positioned with the outer peripheral surface 22b1 in contact with
the inner peripheral surface 10b0. The first groove portion 22c1 is
formed on the outer peripheral surface 22b1. The second groove
portion 22c2 is formed over the outer peripheral surface 22b1 and
the outer peripheral surfaces 22a1 and 22a2. The groove portion 22c
is formed with a length L4.
[0079] The distance between the outer peripheral surface 22a1 of
the inner container 20 and the inner peripheral surface 10b of the
outer container 10 will be described with reference to FIGS. 15 and
16. As illustrated in FIG. 15, in the lengthwise direction, the
inner peripheral surface 10b of the outer container 10 is formed as
a curved surface having a curvature radius R1, and the outer
peripheral surface 22a1 of the inner container 20 is formed as a
curved surface having a curvature radius R2. As described above,
the curvature radius R2 is smaller than the curvature radius R1.
Therefore, when the inner container 20 is inserted into the outer
container 10, as illustrated in FIG. 16, the upper end portions
come into contact with each other, and the distance between the
outer peripheral surface 22a1 and the inner peripheral surface 10b
increases toward the bottom.
[0080] The length L4 of the groove portion 22c is defined by the
distance between the outer peripheral surface 22a1 and the inner
peripheral surface 10b. That is, when the inner container 20 is
inserted into the outer container 10, since gas can pass through
without experiencing significant resistance when a sufficient gap
exists between the outer peripheral surface 22a1 and the inner
peripheral surface 10b, the groove portion 22c is not formed.
Meanwhile, with a position where there is no sufficient gap between
the outer peripheral surface 22a1 and the inner peripheral surface
10b, the groove portion 22c is formed since significant resistance
is experienced when the gas passes through or the gas is not able
to pass through. Since there is a sufficient gap between the outer
peripheral surface 22a3 and the inner peripheral surface 10b3
described above, the groove portion 22c is not formed. Meanwhile,
since the gap is insufficient between the outer peripheral surface
22a1 and the inner peripheral surface 10b, the groove portion 22c
is formed.
[0081] As described above, when the inner container 20 is connected
to the outer container 10 to form the container main body, the
distance between the outer peripheral surface 22a1 and the inner
peripheral surface 10b is smallest at the upper end thereof. In
this respect, in the present embodiment, the expanded gas can be
taken in by forming the width of the second groove portion 22c2
larger toward the upper end.
[0082] As illustrated in FIG. 17, an outer cap 30 is a lid having
an open lower end. A cross section of the outer cap 30 in the
orthogonal direction is formed in a circular shape. With the outer
cap 30, the outer surface is referred to as an outer peripheral
surface 30a, and the inner surface is referred to as an inner
peripheral surface 30b. The outer cap 30 is formed in a shape where
the diameter increases from the lower end portion toward the top,
and the upper end portion and the upper end vicinity portion are
formed as a spherical surface.
[0083] As illustrated in FIGS. 18 and 19, an inner cap 40 has a
main body portion 44 and a handle 42 connected to the main body
portion 44. The lower end portion 44c of the inner cap 40 is open.
A screw 44d is formed on the inner surface of the main body portion
44. Although the brush 44 (see FIG. 4) is connected to the lower
end portion of the handle 42, the brush 44 is omitted in the
following description.
[0084] As illustrated in FIG. 18, a cap groove portion 44a1 is
formed on the outer peripheral surface 44a of the inner cap 40. The
cap groove portion 44a1 is a groove whose length in the lengthwise
direction is longer than the length in the orthogonal direction. A
plurality of cap groove portions 44a1 are formed, and among the cap
groove portions 44a1, a portion of the cap groove portions 44a1 is
continuous with the second cap groove portion 44a2. Hereinafter,
the cap groove portion 44a1 continuous with the second cap groove
portion 44a2 will be referred to as a "continuous cap groove
portion". When the inner cap 40 is inserted into the outer cap 30
to form the cap, the second cap groove portion 44a2 is configured
to lead to the outside of the cap. The width of the second cap
groove portion 44a2 is smaller than the width of the cap groove
portion 44a1.
[0085] When the inner cap 40 is inserted into the outer cap 30 to
form a cap, a space exists between the outer surface of the inner
cap 40 and the inner surface of the outer cap 30. As illustrated in
FIG. 20, a space S1 exists between the upper end portion 44b of the
inner cap 40 and the ceiling surface 30b1 of the outer cap 30. The
continuous cap groove portion is configured to pass through both
the space S1 and the outside of the lower portion of the cap. The
cap groove portion 44a1 that does not form the continuous cap
groove portion is configured so as to pass through the space S1 and
not to the outside of the cap.
[0086] Next, the connection between the inner container 20 and the
outer container 10 will be described with reference to FIGS. 21 and
22. First, as illustrated in FIG. 21, the connecting resin 100 is
applied to the outer peripheral surface 22a1 of the inner container
20. The melting point of the resin 100 is equal to or lower than
the melting point of the resin forming the inner container 20. The
resin 100 is applied in a molten state. The surrounding gas expands
due to the heat radiated from the molten resin 100.
[0087] Next, as illustrated in FIG. 22, the inner container 20 is
inserted into the outer container 10. The resin 100 spreads between
the outer peripheral surface 22a1 of the inner container 20 and the
inner peripheral surface 10b of the outer container 10, fills the
space between the outer peripheral surface 22a1 and the inner
peripheral surface 10b, and functions as a connecting means. As
described above, since the diameter d2 of the enlarged diameter
portion 22b of the inner container 20 is larger than the diameter
d1 of the upper end portion of the inner peripheral surface 10b of
the outer container 10, when the inner container 20 is inserted
into the outer container 10, the enlarged diameter portion 22b is
elastically deformed and reduced, and when the insertion is
completed, the inner peripheral surface 10b of the outer container
10 is pressed from the inside. In this way, the inner container 20
is fixed inside the outer container 10. In this state, a space S2
exists between the bottom surface 10b4 of the inner surface 10b of
the outer container 10 and the bottom surface 22a4 of the outer
surface of the inner container 20.
[0088] When the inner container 20 is inserted into the outer
container 10, since the resin 100 is in a molten state and radiates
heat, the gas between the inner container 20 and the outer
container 10 expands. When the cosmetics container 1 is
manufactured under atmospheric air, the gas is air. As illustrated
in FIG. 23, the expanded gas flows into the groove portion 22c as
indicated by arrows A1 and A2 and is discharged from between the
inner container 20 and the outer container 10 as indicated by arrow
A3.
[0089] Therefore, the expanded gas does not interfere with the
connection between the inner container 20 and the outer container
10. Further, even when the inner container 20 and the outer
container 10 are connected and the mascara is stored inside the
inner container 20 and heated for sterilization or the like, the
gas existing between the outer container 10 and the inner
containers 20, for example, the gas existing in the space S2 and
the like, expands. However, it also flows into the groove portion
22c and does not affect the connection state between the outer
container 10 and the inner container 20. The gas flow indicated by
arrows A1 to A3 in FIG. 23 indicates the gas flow between the inner
container 20 and the outer container 10; however, description of
the outer container 10 is omitted in FIG. 23.
[0090] Next, a state in which the inner cap 40 is connected to the
outer cap 30 will be described. When the inner cap 40 is inserted
into the outer cap 30, the molten resin 100 is applied to the outer
peripheral surface 44a of the inner cap 40 similar to the
above-mentioned inner container 20. Through this, although the gas
between the inner cap 40 and the outer cap 30 expands, as
illustrated in FIG. 24, with the continuous cap groove portion, it
flows into the cap groove portion 44a1, passes through the second
cap groove portion 44a2, and is released to the outside as
indicated by the arrow B3. The gas that has flowed into the cap
groove portions 44a1 other than the continuous cap groove portion
flows into the space S1 as indicated by arrows B1 and B2, then
flows into the continuous cap groove portion, and is also released
to the outside.
[0091] Therefore, the expanded gas does not interfere with the
connection between the inner cap 40 and the outer cap 30. Further,
when the inner cap 40 and the outer cap 30 are connected and heated
for sterilization or the like, the gas existing between the outer
cap 30 and the inner cap 40 expands, but the cap groove portion
44a1 also expands. Since it flows into the gas and is discharged to
the outside through the continuous cap groove portion, it does not
affect the connection state of the outer cap 30 and the inner cap
40. The gas flow indicated by arrows B1 to B3 in FIG. 24 indicates
the gas flow between the inner cap 40 and the outer cap 30;
however, the description of the outer cap 30 is omitted in FIG.
24.
[0092] Next, the assembly process of the cosmetics container 1 will
be described with reference to FIGS. 25 and 26. In addition, in
FIG. 25 and FIG. 26, members located inside other members are also
indicated by solid lines. As illustrated in FIG. 25, in a state
where the inner container 20 is inserted into the outer container
10 and fixed, a gate member 26 is connected to a connecting portion
24 of the inner container 20. The gate member 26 has a circular
cross section in the orthogonal direction. When using the cosmetics
container 1, the gate member 26 comes into contact with the brush
44 and adjusts the amount of mascara attached to the brush 44. As
illustrated in FIG. 26, the inner cap 40 connected to the outer cap
30 engages with the inner container 20 connected to the outer
container 10 to form the cosmetics container 1.
Second Embodiment
[0093] A second embodiment will be described with reference to
FIGS. 27 to 30. Matters common to the first embodiment will be
omitted, and portions different from the first embodiment will be
mainly described.
[0094] As illustrated in FIGS. 27 to 29, with an inner container
20A of the second embodiment, a groove portion 22Ac is formed over
a base portion 22a and an enlarged diameter portion 22b. The groove
portion 22Ac becomes wider toward the upper end portion of the
inner container 20A. That is, the groove portion 22Ac has the
largest width at the opening in the shoulder surface 24b.
[0095] As illustrated in FIG. 30, in the inner cap 40A, all the cap
groove portions 44a1 are connected to the second cap groove portion
44a2 to form a continuous cap groove portion.
Third Embodiment
[0096] A third embodiment will be described with reference to FIG.
31. Matters common to the first embodiment will be omitted, and
portions different from the first embodiment will be mainly
described.
[0097] With an inner container 20B of the third embodiment, of a
plurality of second groove portions 22c2, a portion of the second
groove portion 22c2 is continuous with a first groove portion 22c1.
For example, as illustrated in FIG. 31, of the four second groove
portions 22c2, only one second groove portion 22c2 is continuous
with the first groove portion 22c1 to form a continuous groove
portion. Gas that has flowed into the second groove portions 22c2
that do not form a continuous groove portion flows into the
continuous groove portion through a space between the inner
container 20B and the outer container 10 such as the space S2 (see
FIG. 22) and is discharged to the outside.
Fourth Embodiment
[0098] A fourth embodiment will be described with reference to FIG.
32. Matters common to the first embodiment will be omitted, and
portions different from the first embodiment will be mainly
described.
[0099] With an inner container 20C of the fourth embodiment, the
direction in which a second groove portion 22c3 extends has a
component in the orthogonal direction in addition to the component
in the lengthwise direction. For example, as illustrated in FIG.
32, the second groove portion 22c3 is formed in a meandering
manner. As a result, expanded gas can be quickly taken into the
second groove portion 22c3 and discharged to the outside.
Fifth Embodiment
[0100] A fifth embodiment will be described with reference to FIG.
33. Matters common to the first embodiment will be omitted, and
portions different from the first embodiment will be mainly
described.
[0101] With an inner container 20D of the fifth embodiment, the
direction in which a second groove portion 22c4 extends has a
component in the orthogonal direction in addition to the component
in the lengthwise direction. Specifically, the second groove
portion 22c4 is configured of a spiral portion 22c41 formed in a
spiral shape on the outer peripheral surface 22a1 of the base
portion 22a and a plurality of straight portions 22c42 connecting
the portions of the spiral portion 22c41 in the orthogonal
direction. As a result, expanded gas can be quickly taken into the
second groove portion 22c4 and discharged to the outside.
[0102] The cosmetics container of the present invention is not
limited to the above embodiments, and various modifications can be
made without departing from the gist of the present invention.
REFERENCE SIGNS LIST
[0103] 1 Cosmetics container [0104] 10 Outer container [0105] 20,
20A, 20B, 20C, 20D Inner container [0106] 30 Outer cap [0107] 40,
40A Inner cap [0108] 22c, 22d, 22e Groove portion [0109] 44a1 Cap
groove portion [0110] 44a2 Second cap groove portion
* * * * *