JPH09131221A - Airtight stick-like cosmetics container - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structure capable of ensuring the airtight performance of a cylindrical container main body side and to improve assembling workability. SOLUTION: A locking projection 21 is formed at the upper position of the vertical slit 22 of an inner cylindrical body 20 and a ring-like inner tool 40 for surrounding the inner cylindrical body 20 is mounted between the inner cylindrical body 20 and a cylindrical cap 2. An annular elastic sealing member 50 for holding the locking projection 21 of the inner cylindrical body 20 from upper and lower directions is disposed on the inner part of the inner tool 40. A projection part 51 to be in press-contact with the outer peripheral surface of the inner cylindrical body 20 and an elastic flexible part 54 to be in elastic contact with the outer peripheral surface of the inner cylindrical body 20 are formed on the elastic sealing member 50 or the locking projection 21 of the inner cylindrical body 20 is brought into press-contact with the inner surface of the elastic sealing member 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outer cylinder body in which a protrusion projecting outward from a cosmetic dish cylinder is engaged with a spiral groove of the outer cylinder body through a vertical slit of the inner cylinder body. Cylindrical container body that has a cosmetic dish cylinder that slides vertically with respect to the inner cylinder body by rotating, and an airtight seal portion that presses against the upper part of the protruding portion of the inner cylinder body. The present invention relates to an airtight stick cosmetic container including a tubular cap that is attached to the container body.

[0002]

2. Description of the Related Art Conventionally, in a stick-shaped cosmetic container such as a lipstick container, a cap fitting and locking function and an airtight function have been incorporated from the viewpoint of preventing the volatile cosmetic from drying and solidifying. It is being appreciated.

As an airtight structure of this type of stick-shaped cosmetic container, a container as disclosed in Japanese Utility Model Publication No. 1-35684 is known. The stick-shaped cosmetic container is configured such that the stick-shaped cosmetic container is provided with a stick-shaped cosmetic dish tube in which the stick-shaped cosmetic material is mounted, while the stick-shaped cosmetic material container is loosely inserted into the outer-cylindrical body. Engage the protrusion protruding outwards with the spiral groove of the outer cylinder through the vertical slit of the inner cylinder, and rotate the outer cylinder to guide it to the vertical slit, and along the spiral groove. Cylindrical container body with a protrusion that moves the cosmetic dish cylinder up and down relative to the inner cylinder, and an airtight seal that presses against the upper part of the inner cylinder It is composed of a tubular cap attached to the container body.

In particular, regarding the structure of the airtight seal, an airtight seal portion for sealing the opening at the upper end of the inner cylinder is provided on the inner surface of the upper end of the cylindrical cap, and further, the outer cylinder located above the spiral groove. A groove is provided between the inner peripheral surface and the outer peripheral surface of the inner cylindrical body, and the seal ring is arranged in the groove.

When the tubular cap is attached to the outer tubular body under such a structure, the upper end of the inner tubular body, which is the entrance and exit of the cosmetic, is sealed by the airtight seal portion. In addition, the seal ring keeps the tubular container body airtight.

On the other hand, in order to prevent the inner cylindrical body from coming off when the outer cylindrical body is rotated with respect to the inner cylindrical body in order to deliver the cosmetic, a locking peripheral portion is provided on the outer peripheral surface of the lower end portion of the inner cylindrical body. Articles are provided,
Insert and assemble the inner cylinder from below the outer cylinder so that the locking peripheral of the inner cylinder abuts the inner circumference of the bottom of the outer cylinder. The bottom of the tubular container body is adapted to be closed.

[0007]

In the conventional airtight stick cosmetic container, a seal ring is arranged between the inner peripheral surface of the outer cylindrical body and the outer peripheral surface of the inner cylindrical body via a groove. However, because of the assembly structure, the inner cylinder is inserted from below into the outer cylinder that is formed with a considerably long dimension. When installing the seal ring that should be in close contact, insert one into the other while the seal ring is already installed in the groove on the outer cylinder side or the inner cylinder side. The inner peripheral surface of the body or the outer peripheral surface of the inner cylinder slides, and the seal ring is dragged between these cylinders, which may cause the seal ring to fall out of the groove, or the seal ring may be twisted. Loosely There may not be ensure good sealing function. Further, it is extremely difficult to mount the seal ring between these grooves after the outer cylinder and the inner cylinder are inserted into each other and the assembling is completed. As described above, in the conventional case, since the seal ring is directly mounted between the outer cylinder body and the inner cylinder body that are inserted at a considerable distance from each other, it is difficult to mount the seal ring, and thus the reliable sealing performance is obtained. Couldn't be expected.

The present invention has been made in view of such conventional problems, and an object thereof is to provide an airtight rod shape having a structure capable of ensuring an airtight performance on the side of a cylindrical container main body and having good assembling workability. To provide a cosmetic container.

[0009]

In order to achieve the above object, the present invention is a cosmetic dish to which a stick-shaped cosmetic is mounted while the inner cylinder is loosely inserted into the outer cylinder so as to project upward from the outer cylinder. A cylinder is provided in the inner cylinder, and a protrusion protruding outward from the cosmetic dish cylinder is engaged with a spiral groove of the outer cylinder through a vertical slit of the inner cylinder to form the outer cylinder. A cylindrical shape in which the cosmetic dish cylinder is slid vertically with respect to the inner cylinder by moving the protrusion along the spiral groove while guiding the body by the vertical slit. An airtight stick cosmetic container comprising a container body and a tubular cap having an airtight seal portion that is pressed against the upper portion of the protruding portion of the inner tubular body and mounted on the tubular container body. A ring-shaped inner tool that surrounds the outer peripheral surface of the lower end of the protruding portion of the inner cylinder is provided at the upper end. A protrusion is formed on the outer peripheral surface of the inner cylindrical body surrounded by the inner member so as to project outward, and inside the inner member, on the outer peripheral surface of the protruding portion of the inner cylindrical member outside the outer cylindrical body. An elastic seal member for press-contacting and sealing the inside of the cylindrical container main body from the outside is mounted, and a fitting concave portion for sandwiching the locking projection from above and below is formed in the elastic seal member.

Further, the fitting recess of the elastic seal member is partitioned and formed by an elastic flexible portion which goes over the locking projection and elastically contacts the outer peripheral surface of the inner cylindrical body.

According to the airtight stick cosmetic container of the first aspect of the present invention having the above-mentioned structure, a ring-shaped inner tool which surrounds the outer peripheral surface of the lower end of the protruding portion of the inner cylinder is provided at the upper end of the outer cylinder. In addition, since the inside of this filling is configured to be equipped with an elastic seal member that press-contacts the outer peripheral surface of the protruding portion of the inner cylindrical body outside the outer cylindrical body to hermetically seal the inside of the cylindrical container main body from the outside, , So that the outer cylinder can be assembled after the elastic seal member is attached to the inner member having a short size corresponding to the lower end of the protruding portion of the inner cylinder and the seal surface is obtained by applying the elastic seal member to the outer peripheral surface of the inner cylinder. It has become.

Further, a fitting recess is formed on the outer peripheral surface of the inner cylinder surrounded by the inner member so as to project outwardly, and the elastic seal member holds the locking projection from above and below. Since the elastic seal member is made multi-functional, it can be used as a retainer for the inner cylinder.

Further, according to the airtight stick cosmetic container according to the invention of claim 2, the fitting recess of the elastic seal member is partitioned by the elastic flexible portion which surmounts the locking projection and elastically contacts the outer peripheral surface of the inner cylinder. The elastic flexible portion elastically contacts the outer peripheral surface of the inner cylindrical body to rotate the outer cylindrical body to obtain a rotational sliding resistance when the cosmetic is delivered.

[0014]

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings. In this embodiment, basically, the inner cylinder body 20 is loosely inserted by projecting upward into the outer cylinder bodies 10 and 10a, and the cosmetic dish cylinder 30 to which the bar-shaped cosmetic material 33 is attached is the inner cylinder body. Provided inside the body 20, the cosmetic dish cylinder 30
By engaging the projection 35 protruding outwardly from the spiral groove 12 of the outer cylindrical body 10 or 10a through the vertical slit 22 of the inner cylindrical body 20 to rotate the outer cylindrical body 10 or 10a. A cylindrical container body 1 in which the protrusion 35 is moved along the spiral groove 12 while being guided by the vertical slits 22 to slide the cosmetic dish cylinder 30 vertically with respect to the inner cylinder body 20, and an inner cylinder. An airtight stick cosmetic container comprising: a cylindrical cap 2, 2a having an airtight seal portion 5, 5a that is pressed against an upper portion of a protruding portion of a body 20 and attached to a cylindrical container body 1; , 10a, a ring-shaped inner member 40, 40a surrounding the outer peripheral surface of the lower end of the protruding portion of the inner cylindrical body 20,
40b is provided, and the locking projection 21 is formed by projecting outwardly on the outer peripheral surface of the inner tubular body 20 surrounded by the inner tool 40, 40a, 40b, and inside the inner tool 40, 40a, 40b.
The elastic seal members 50, 60, 80 are attached to the outer peripheral surface of the outer cylindrical body 10, 10a to press the outer peripheral surface of the protruding portion of the inner cylindrical body 20 to hermetically seal the inside of the cylindrical container main body 1 from the outside, and the elastic seal is provided. The members 50, 60, 80 are formed with fitting recesses 59, 69, 83 for holding the locking projection 21 from above and below.

In the preferred embodiment, the elastic seal member 5
The fitting recessed portions 59, 69, 83 of 0, 60, 80 are defined by elastic flexible portions 54, 64, 81 which ride over the locking projection 21 and elastically contact the outer peripheral surface of the inner tubular body 20. There is.

1 to 4 show a first embodiment of an airtight stick cosmetic container according to the present invention. The airtight stick cosmetic container of this embodiment is composed of a cylindrical container body 1 and a resin-made cylindrical cap 2 fitted therein. Cylindrical container body 1
As shown in FIG. 2, the outer cylinder body 1 that forms the outer shell of the outer cylinder body 1
0, an inner cylindrical body 20, and a cosmetic dish cylinder 30. The inner cylindrical body 20 is arranged outside the cosmetic dish cylinder 30, and the outer cylindrical body 10 is arranged outside the inner cylinder body 20. In addition, a filling 40 is attached to the upper end of the outer tubular body 10.

The outer cylindrical body 10 is a hollow cylindrical cylindrical body, and an annular notch 11 is formed on the outer periphery of the upper end thereof. An annular notch 14 is formed on the inner circumference of the upper end, and a spiral groove 12 is formed below the notch 14. Further, an opening 13 is formed at the bottom of the outer cylindrical body 10.

The inner cylindrical body 20 is a hollow cylindrical body having an outer diameter slightly smaller than the inner diameter of the outer cylindrical body 10, and is inserted into the outer cylindrical body 10 from above and loosely inserted thereinto. In the vicinity of the upper end of the outer cylindrical body 10 at a substantially middle portion of the outer peripheral surface thereof, a single locking projection 21 is annularly projected along the circumferential direction. Further, below the locking projection 21, the outer cylindrical body 1
A vertical slit 22 formed corresponding to the axial length of the spiral groove 12 of 0 is formed, and the vertical slit 22 is opened downward.

The cosmetic dish cylinder 30 is a hollow cylindrical body having an outer diameter slightly smaller than the inner diameter of the inner tubular body 20.
0 is filled with a stick-shaped cosmetic material 33 such as lipstick, foundation, and blusher in a molten state. Further, on the inner peripheral surface of the upper portion of the cosmetic dish cylinder 30, an engagement convex portion 34 for preventing the cosmetic material 33 from falling off is formed in the circumferential direction. Further, engagement projections 35, 35 are formed on the outer peripheral surface of the cosmetic dish cylinder 30 so as to project outward. The engaging projection 35 penetrates the vertical slit 22 formed in the inner tubular body 20 and engages in the spiral groove 12 of the outer tubular body 10 to form a lifting mechanism for the cosmetic dish barrel 30. There is.

Therefore, when the outer cylinder 10 is rotated relative to the inner cylinder 20 from the state shown in FIG.
The engaging projection 35 rises up to the upper limit position of the vertical slit 22 along with, and the cosmetic 33 of the cosmetic dish cylinder 30 comes to project from the inner cylindrical body 20.

As shown in FIG. 3, the inner tool 40 is composed of the inner cylindrical body 2
The outer diameter of the upper part 41 is smaller than the outer diameter of the lower part 42, and a ring-shaped ring extending along the circumferential direction is formed in the approximately middle part of the outer peripheral surface of the upper part 41. Rib 43
Are formed to project. A recess 45 is circumferentially formed on the inner peripheral surface of the lower portion 42 via a step portion 44, and a recess 47 is circumferentially formed on the lower inner peripheral surface via a step portion 46. An elastic seal member 50 is arranged over the recesses 45 and 47. Further, an inclined surface 48 is provided on the outer periphery of the upper end portion of the filling 40 as a mounting guide for the cylindrical cap 2.
Are formed.

The elastic seal member 50 is a ring-shaped member having a substantially L-shaped cross section which surrounds the outer peripheral surface of the lower end of the protruding portion of the inner cylindrical body 20 protruding from the outer cylindrical body 10, and the inner peripheral surface of the upper end portion thereof has a circumferential direction. An inwardly projecting portion 51 is formed so as to project. An inclined surface 52 is formed along the circumferential direction at the lower end of the inner peripheral surface of the elastic seal member 50. Below the inclined surface 52, a plurality of elastic flexible portions are further provided in the circumferential direction via slits 53. 54 is drooped. On the inner surface of the elastic flexible portion 54,
A fitting concave portion 59 that can be fitted into the locking projection 21 of the inner cylindrical body 20 is defined and formed, and an inward projecting portion 55 is projectingly formed at the tip thereof. The elastic seal member 50
Is made of soft polyethylene, urethane, rubber, etc.

The elastic seal member 50 as described above is used as the filling 4
When it is arranged over the recesses 45 and the recesses 47 of 0, the annular collar portion 56 of the elastic seal member 50 causes the recesses 47 of the filling 40 to move.
The outer peripheral surface of the protruding portion 51 contacts the stepped portion 46 of the elastic seal member 50, and the outer peripheral surface of the protruding portion 51 faces outward between the outer peripheral surface of the protruding portion 51 of the elastic seal member 50 and the upper end surface and the inner peripheral surface of the recess 45 of the filling 40. A flexible space A is formed. Further, when the outer cylindrical body 10 is mounted, the elastic flexible portion 54 of the elastic seal member 50 is inserted into the notch portion 14, and a space B in which the elastic flexible portion 54 can flex outward is formed between them. To be done.

Then, the cosmetic dish cylinder 30 is arranged in the inner cylindrical body 20, and the elastic sealing material 50 is attached to the engaging projection 21 of the inner cylindrical body 20.
In the state in which the inner tool 40 is fitted from above and the outer cylinder body 10 is further attached, the lower end surface 49 of the inner tool 40 has an outer cylinder as shown in FIGS. 2 and 3. The elastic flexible portion 54 of the elastic seal member 50 abuts the cutout portion 11 of the body 10 and slightly bends outward with the space B that allows the elastic seal member 50 to bend outward so that the locking projection 21 fits into the fitting recess 59. It is inserted into the notch 14 while fitting. Then, when the lower end surface 49 of the inner tool 40 is welded to the notch 11 of the outer tubular body 10, the outer peripheral surface of the lower portion 42 of the inner tool 40 is flush with the outer peripheral surface of the outer tubular body 10. Further, the protrusion 51 of the elastic seal member 50 is
Since the space A that can bend outward is pressed against the outer peripheral surface of the projecting portion of the inner cylindrical body 20 to seal the gap generated between the inner cylindrical body 20 and the outer cylindrical body 10, the cylindrical container main body 1 with respect to the outside The airtightness inside can be reliably maintained. Further, since the elastic seal member 50 can be attached to the inner cylindrical body 20 in advance, workability is good.

Further, the inner cylindrical body 20 has a locking protrusion 21.
Is the elastic flexible portion 5 below the inclined surface 52 of the elastic seal member 50.
4. The fitting recessed portion 59 formed inward is fixed in a state of being sandwiched from above and below, whereby the inner cylindrical body 20 can be prevented from coming out from the outer cylindrical body 10. In addition,
In the present embodiment, a stick-shaped cosmetic container of the type in which the molten cosmetic is directly filled from the lower portion of the cylindrical container body 1 that has been assembled is illustrated. Therefore, the opening 13 is formed in the lower portion of the outer cylindrical body 10. Although formed, this opening 13 is hermetically sealed by attaching a seal 15 after filling the cosmetic material. In the case of a bar-shaped cosmetic container in which the solid bar-shaped cosmetic is mounted on the cosmetic dish cylinder 30 from above, the outer cylindrical body 1
As 0, a molded product having a bottomed cylindrical shape is used.

When the outer cylindrical body 10 is rotated relative to the inner cylindrical body 20, as shown in FIG. 1, the engaging projection 3 extends along the spiral groove 12 up to the upper limit position of the vertical slit 22.
5, the cosmetic 33 of the cosmetic dish cylinder 30 comes to project from the inner cylinder 20. At this time, the protrusion 55 formed inside the tip of the elastic flexible portion 54 of the elastic seal member 50 elastically contacts the outer peripheral surface of the inner cylindrical body 20 with the space B, so that the outer cylindrical body 10 is rotated. Rotational sliding resistance can be generated when the cosmetic material 33 is delivered, and a smooth delivery operation can be ensured.

On the other hand, the cylindrical cap 2 is made of synthetic resin,
The outer diameter is formed to be equal to the outer diameter of the outer cylindrical body 10.
On the inner peripheral surface of the lower portion 3 of the tubular cap 2, a single annular groove 4 that can fit with the annular rib 43 of the filling 40 is formed along the circumferential direction. It is adapted to be removably fitted into the tubular container body 1 via the above-mentioned filling 40.

A tubular resin sealing member 5 is fixed to the inside of the tubular cap 2 from the upper end portion to a substantially middle portion of the side wall by an appropriate means such as an adhesive. However, the airtight seal portion is configured by being pressed against the upper portion of the protruding portion of the inner cylindrical body 20.

As shown in FIGS. 2 and 3, when the tubular cap 2 is covered with the tubular container body 1, the tubular cap 2
Cylindrical resin sealing member 5 provided along the inner surface of the
Comes into pressure contact with the upper portion of the protruding portion of the inner cylindrical body 20, whereby the upper end opening of the inner cylindrical body 20 which is the entrance and exit of the cosmetic 33 is reliably sealed. At the same time, the protruding portion 51 of the elastic seal member 50 elastically presses against the outer peripheral surface of the protruding portion of the inner cylindrical body 20 in the space A, thereby forming a gap between the inner cylindrical body 20 and the outer cylindrical body 10. Because it can be sealed
The airtightness inside the cylindrical container body 1 can be reliably maintained.

In particular, a ring-shaped inner component 4 surrounding the outer peripheral surface of the lower end of the protruding portion of the inner cylindrical body 20 at the upper end of the outer cylindrical body 10.
0 is provided, and an elastic seal member 50 for sealing the inside of the cylindrical container body 1 from the outside by press-contacting the outer peripheral surface of the projecting portion of the inner cylindrical body 20 is attached to the inside of the filling 40. Since it is configured, the elastic seal member 50 is attached to the inner container 40 having a short size corresponding to the lower end of the protruding portion of the inner cylinder 20, and the elastic seal member 50 is applied to the outer peripheral surface of the inner cylinder 20 to obtain the sealing surface. Since the body 10 can be assembled, it is possible to assemble the tubular container body 1 with good workability while ensuring a reliable sealing performance during assembly.

Further, a locking projection 21 is formed on the outer peripheral surface of the inner cylindrical body 20 surrounded by the inner tool 40 so as to project outward, and the locking projection 21 is formed on the elastic seal member 50 from above and below. Since the fitting recess 59 to be sandwiched is formed,
The elastic seal member 50 can be made multi-functional and can be used as a retainer for the inner tubular body 20, and a separate component is required to configure the retainer for the inner tubular body 20, or the inner tubular body 20 can be prevented. And preventing the outer cylinder body 10 from becoming complicated in shape,
The manufacturability can be improved and the assembling work can be simplified and simplified.

FIGS. 5 to 7 show a second embodiment of the present invention, in which the same components as those of the above-mentioned embodiment are designated by the same reference numerals, and a duplicate description will be omitted. In the first embodiment, the tubular cap 2 is made of synthetic resin, but the tubular cap 2a of the present embodiment is a metallic tubular body having a uniform thickness, and a temporary inclined surface is provided inside thereof. A cylindrical resin seal member 5a formed in a shape corresponding to the outer shape of the cylindrical container body 1
Are fixed by an appropriate means such as an adhesive. The inner diameter of the upper end portion 7 of the seal member 5a is formed to be equal to the outer diameter of the upper portion of the inner cylindrical body 20, and the inner diameter of the lower end portion 8 of the seal member 5a is formed to be equal to the outer diameter of the upper portion of the filling 40. The upper end portion 7 and the lower end portion 8 are in pressure contact with the inner cylindrical body 20 and the filling 40, respectively. Also, the sealing member 5
On the inner peripheral surface of the lower end portion 8 of a, a single annular groove 9 that can fit with the annular rib 43 of the filling 40 is formed along the circumferential direction,
As a result, the tubular cap 2a is adapted to be removably fitted into the tubular container body 1 via the filling 40.

As shown in FIGS. 6 and 7, when the tubular cap 2a is put on the tubular container body 1, the tubular resin seal member 5a provided along the inner surface of the tubular cap 2a is provided. The inner peripheral surface of the upper end portion 7 is pressed against the upper portion of the protruding portion of the inner cylindrical body 20, whereby the upper end opening portion of the inner cylindrical body 20 which is the entrance and exit of the cosmetic material 33 is reliably sealed. At the same time, the inclined surface 48 of the filling 40 guides the tubular cap 2, the annular rib 43 fits into the annular groove 9 of the tubular cap 2, and the inner peripheral surface of the lower end 8 has the filling. The outer peripheral surface of the upper portion of 40 is pressed. Further, similarly to the first embodiment,
Since the elastic seal member 50 can seal the gap formed between the inner tubular body 20 and the outer tubular body 10, the airtightness inside the tubular container body 1 can be reliably maintained. Other actions and effects are similar to those of the first embodiment.

FIG. 8 and FIG. 9 show a third embodiment of the present invention, in which the same components as those in the above-mentioned embodiment are designated by the same reference numerals, and a duplicate description will be omitted.

The outer cylindrical body 10a is a cylindrical hollow cylindrical body, and an annular notch 17 is formed on the inner periphery of the upper end 16 thereof, and an annular notch 19 is formed on the inner periphery thereof through a step 18. Is formed, and a spiral groove 12 is engraved thereunder.

As shown in FIG. 8, the inner tool 40a has a ring shape surrounding the inner tubular body 20, and the outer diameter of the upper portion 41a thereof is smaller than the outer diameter of the lower portion 42a.
A single annular rib 43a is formed so as to project along the circumferential direction at a substantially middle portion of the outer peripheral surface of a. Also, the lower portion 42a
Recesses 45a are formed in the circumferential direction on the inner peripheral surface of the elastic seal member 6 extending over the recesses 45a and the notches 19.
0 is provided. Further, the lower portion 42 of the filling 40a
A recess 49 is circumferentially formed on the outer periphery of a.

As shown in FIG. 9, the elastic seal member 60 has a ring shape having a substantially inverted L-shaped cross section surrounding the outer peripheral surface of the inner cylindrical body 20, and the inner peripheral surface of the lower end portion of the elastic seal member 60 is arranged in the circumferential direction. A projecting portion 61 is formed so as to project. Further, an inclined surface 62 is formed along the circumferential direction at the upper end of the inner peripheral surface of the elastic seal member 60, and a plurality of elastic flexible portions are further provided above the inclined surface 62 via slits 63 in the circumferential direction. 64 are erected. On the inner surface of the elastic flexible portion 64, a fitting concave portion 69 that can be fitted into the locking projection 21 of the inner cylindrical body 20 is defined and formed, and an inward projecting portion 65 is projectingly formed at the tip portion thereof. Has been done.

The elastic seal member 60 as described above is used as the filling 4
0a from the recess 45a to the cutout portion 19 of the outer cylindrical body 10a, the annular flange portion 66 of the elastic seal member 60 abuts the cutout portion 17 of the outer cylindrical body 10a, the elastic seal member 6
A space A is formed between the outer peripheral surface of the protruding portion 61 of 0 and the lower end surface and the inner peripheral surface of the cutout portion 19 of the outer cylindrical body 10a so that the outer peripheral surface of the protruding portion 61 can bend outward. Further, in the state in which the filling 40a is attached, the elastic flexible portion 64 of the elastic seal member 60 is
Is inserted in the recess 45a, and the elastic flexible portion 6 is interposed between them.
A space B in which 4 can be bent outward is formed.

Then, the cosmetic dish cylinder 30 is arranged in the inner cylindrical body 20, and the elastic sealing material 60 is attached to the engaging projection 21 of the inner cylindrical body 20.
, And then mount the outer cylinder 10a from below,
Further, in the state in which the inner component 40a is attached, as shown in FIG. 8, the elastic flexible portion 64 of the elastic seal member 60 is slightly outwardly bent with the space B that can be outwardly bent to fit into the fitting concave portion. The engagement protrusion 21 is fitted to the screw 69 and is inserted into the recess 45a. Then, when the lower end surface 49 of the inner tool 40a is welded to the upper end surface 16 of the outer tubular body 10a, the outer peripheral surface of the lower portion 42a of the inner tool 40a becomes flush with the outer peripheral surface of the outer tubular body 10a. Furthermore, the protrusion 61 of the elastic seal member 60 is pressed against the outer peripheral surface of the inner cylindrical body 20 with the space A that can be bent outward,
Since the gap generated between the inner cylindrical body 20 and the outer cylindrical body 10a can be sealed, the airtightness of the inside of the cylindrical container body 1 to the outside can be reliably maintained. Further, since the elastic seal member 60 can be attached to the inner cylindrical body 20 in advance, the workability is good.

Further, the inner cylindrical body 20 has a locking projection 21.
Is the elastic flexible portion 6 below the inclined surface 62 of the elastic seal member 60.
4 is fixed in a state of being sandwiched from above and below by the fitting concave portion 69 formed inward, so that the inner cylindrical body 20 can be prevented from coming out from the outer cylindrical body 10a.

Further, the protrusion 65 formed inside the tip of the elastic flexible portion 64 of the elastic seal member 60 elastically contacts the outer peripheral surface of the inner cylindrical body 20 with the space B, so that the outer cylindrical body 10a.
It is possible to generate a rotational sliding resistance when the cosmetic 33 is fed by rotating the, and a smooth feeding operation can be ensured. Other actions and effects are similar to those of the first embodiment.

FIGS. 10 and 11 show a fourth embodiment of the present invention, in which the same components as those in the above-mentioned embodiment are designated by the same reference numerals and a duplicate description will be omitted.

The inner tool 40b has a ring shape surrounding the inner cylindrical body 20, and an outer diameter of an upper portion 41b thereof is smaller than an outer diameter of the lower portion 42b, and a substantially middle portion of an outer peripheral surface of the upper portion 41b. A single annular rib 43b is formed so as to project along the circumferential direction. Further, the recess 4 is formed on the inner peripheral surface of the lower portion 42b.
5b is formed along the circumferential direction, and the elastic seal member 80 is arranged here.

As shown in FIG. 11, the elastic seal member 80 has a ring shape surrounding the inner cylindrical body 20, and a thin elastic flexible portion 81 is formed in the circumferential direction at a substantially central portion of the outer peripheral surface thereof. The upper end portion 82 is projected outward. Also,
A fitting recess 83 is formed in the circumferential direction in a substantially central portion of the inner peripheral surface, and a lower end of the fitting recess 83 projects inward to project the inner cylindrical body 20.
Is a protrusion 84 that elastically contacts the outer peripheral surface of the.

When the cosmetic dish cylinder 30 is placed in the inner cylinder 20 and the inner tool 40b and the outer cylinder 10 are attached to the inner cylinder 20, the lower end surface 49b of the middle tool 40b is fixed to the outer cylinder 10. The elastic flexible portion 8 of the elastic seal member 80 is brought into contact with the cutout portion 11.
Reference numeral 1 denotes a notch portion 14 while elastically contacting with the locking projection 21 of the inner cylindrical body 20.
Inserted inside, the locking projection 21 is pressed against the inner surface of the fitting recess 83 of the elastic seal member 80, whereby the gap generated between the inner cylindrical body 20 and the outer cylindrical body 10 can be sealed. The airtightness inside the cylindrical container body 1 can be reliably maintained. In the present embodiment, the elastic seal member 80 comes into pressure contact with the surface so as to surround the locking projection 21 of the inner cylindrical body 20, and thus a better sealing property can be obtained.

Further, the inner cylindrical body 20 has a locking projection 21.
Is fixed in a state of being sandwiched from above and below by the fitting recesses 83 of the elastic seal member 80, whereby it is possible to prevent the inner cylindrical body 20 from coming off from the outer cylindrical body 10.

Further, when the outer tubular body 10 is rotated relative to the inner tubular body 20, the protrusion 84 formed inside the tip end portion of the elastic flexible portion 81 causes the outer peripheral surface of the inner tubular body 20 to move. Since it is elastically contacted with, the outer cylinder body 10 can be rotated to generate a rotational sliding resistance when the cosmetic material 33 is delivered, and a smooth delivery operation can be ensured. Other actions and effects are similar to those of the first embodiment.

In the above embodiment, the airtight stick cosmetic container of the type in which the molten cosmetic 33 is directly filled by pouring it from the opening 13 at the lower end of the outer cylindrical body 10 has been exemplified. The present invention can also be applied to an airtight stick cosmetic container of the type in which cosmetics such as a foundation, blusher and the like are stored in the cosmetic dish cylinder 30. Also, the material of the cylindrical caps 2 and 2a is
It can be formed of any material such as resin and metal.

[0049]

As described above, in the airtight stick-shaped cosmetic container of the present invention, the ring-shaped filling material that surrounds the outer peripheral surface of the lower end of the protruding portion of the inner cylinder is provided in the upper end of the outer cylinder. An elastic seal member is provided in the inside of the inner tool, which press-contacts the outer peripheral surface of the protruding portion of the inner cylindrical body outside the outer cylindrical body to seal the inside of the cylindrical container body from the outside in an airtight manner. Therefore, after mounting the elastic seal member on the inner part of the short size corresponding to the lower end of the protruding part of the inner cylinder and applying the elastic seal member to the outer peripheral surface of the inner cylinder to obtain the sealing surface, the outer cylinder may be assembled. Therefore, it is possible to assemble the tubular container body with good workability while ensuring a reliable sealing performance during assembly.

Further, a fitting projection is formed on the outer peripheral surface of the inner cylindrical body surrounded by the inner member so as to project outward, and the elastic seal member has a fitting recess for sandwiching the fitting projection from the vertical direction. Since it is formed, it is possible to make the elastic seal member multifunctional and use it as a retainer for the inner cylindrical body,
To prevent the inner cylinder from coming off, separate parts are required, and the inner cylinder and outer cylinder are prevented from becoming complicated in shape, improving manufacturability and simplifying assembly work. It can be simplified.

Further, the fitting recess of the elastic seal member is defined by an elastic flexible portion which surmounts the locking projection and elastically contacts the outer peripheral surface of the inner cylindrical body. By rotating the outer cylinder by elastic contact with the outer peripheral surface of the cylinder, it is possible to obtain rotational sliding resistance when the cosmetic is delivered.
It is possible to guarantee a smooth cosmetic feeding operation.

As described above, since the elastic seal member is provided with all the functions of the seal function, the retaining function of the inner cylindrical body, and the function of imparting the rotational sliding resistance, it is made multi-functional to further improve the manufacturability. It is possible to improve and simplify / simplify the assembling work.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a cylindrical container body and a cylindrical cap of an airtight stick cosmetic container according to a first embodiment of the present invention.

FIG. 2 is a partial cross-sectional side view of the airtight stick cosmetic container according to the first embodiment of the present invention.

FIG. 3 is an enlarged cross-sectional view of a main part of the airtight stick cosmetic container according to the first embodiment of the present invention.

FIG. 4 is a partially cutaway perspective view of the elastic seal member of the airtight stick cosmetic container according to the first embodiment of the present invention.

FIG. 5 is a partially cutaway perspective view of a tubular cap of an airtight stick cosmetic container according to a second embodiment of the present invention.

FIG. 6 is a partial cross-sectional side view of an airtight stick cosmetic container according to a second embodiment of the present invention.

FIG. 7 is an enlarged cross-sectional view of a main part of an airtight stick cosmetic container according to a second embodiment of the present invention.

FIG. 8 is an enlarged sectional view of a main part of an airtight stick cosmetic container according to a third embodiment of the present invention.

FIG. 9 is a partially cutaway perspective view of an elastic seal member of an airtight stick cosmetic container according to a third embodiment of the present invention.

FIG. 10 is an enlarged sectional view of a main part of an airtight stick cosmetic container according to a fourth embodiment of the present invention.

FIG. 11 is a partially cutaway perspective view of an elastic seal member of an airtight stick cosmetic container according to a fourth embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Cylindrical container main body 2,2a Cylindrical cap 5,5a Resin sealing member 10,10a Outer cylinder 12 Spiral groove 20 Inner cylinder 21 Locking protrusion 22 Vertical slit 30 Cosmetic dish barrel 33 Stick cosmetic 35 Protrusion 40 , 40a, 4
0b Filler 50,60,80 Elastic seal member 54,64,81 Elastic flexible part 59,69,83
Mating recess

Claims (2)

[Claims] 1. A cosmetic dish cylinder in which the stick-shaped cosmetic is mounted is provided in the inner barrel body while the inner barrel body is loosely inserted into the outer barrel body so as to project upward from the outer barrel body. The protrusion protruding outward is engaged with the spiral groove of the outer tubular body through the vertical slit of the inner tubular body, and the outer tubular body is guided by the vertical slit by rotating. A cylindrical container body configured to move the protrusion along the spiral groove to vertically slide the cosmetic dish cylinder with respect to the inner cylinder body, and press-contact with an upper portion of a protruding portion of the inner cylinder body. An airtight stick-shaped cosmetic container comprising a tubular cap having an airtight seal portion and attached to the tubular container body, wherein an outer peripheral surface of a lower end of a protruding portion of the inner tubular body is provided at an upper end portion of the outer tubular body. A ring-shaped inner tool that surrounds the inner tool is provided, and the outer tool projects outward from the outer peripheral surface of the inner cylindrical body that is surrounded by the inner tool. An elastic sealing member for forming a locking protrusion, and press-contacting the outer peripheral surface of the protruding portion of the inner cylindrical body outside the outer cylindrical body with the inside of the inner container to hermetically seal the inside of the cylindrical container main body from the outside. A hermetically sealed stick-shaped cosmetics container in which a fitting recess for holding the locking projection from above and below is formed on the elastic seal member. 2. The fitting recess of the elastic seal member,
The airtight stick-shaped cosmetics container according to claim 1, wherein the airtight stick-shaped cosmetic container is partitioned and formed by an elastic flexible portion that goes over the locking protrusion and elastically contacts the outer peripheral surface of the inner cylinder.