JPH09131220A - Airtight stick cosmetic container - Google Patents

Abstract

(57) Abstract: [PROBLEMS] To provide an airtight stick-shaped cosmetic container having a structure capable of ensuring the airtight performance on the cylindrical container body side and having good assembly workability. SOLUTION: A locking projection 21 is formed at a position above a vertical slit 22 of an inner cylindrical body 20. Inner tubular body 20 and tubular cap 2
A ring-shaped inner tool 40 that surrounds the inner cylindrical body 20 is mounted between the inner and outer shells. On the inside of the filling 40, the locking projection 2 of the inner cylindrical body 20
An elastic seal member 50 formed in an annular shape is arranged in the vicinity of 1. The elastic seal member 50 is formed with a protrusion 51 that elastically contacts the outer peripheral surface of the inner cylindrical body 20.

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 that press-contacts to seal the inside of the cylindrical container body from the outside is attached, and the locking protrusion is vertically sandwiched between the elastic seal member and the outer cylinder body or the inner component. The engaging portion is formed.

Further, the elastic seal member is formed with an elastic flexible portion which elastically contacts the outer peripheral surface of the inner cylindrical body.

In the airtight stick cosmetic container according to the first aspect of the present invention, the outer cylindrical body has an upper end provided with a ring-shaped inner part which surrounds the outer peripheral surface of the lower end of the protruding portion of the inner cylindrical body, and Since an elastic seal member that seals the inside of the tubular container body from the outside in an airtight manner is attached to the inside of the inner component by press-contacting the outer peripheral surface of the protruding portion of the inner cylinder outside the outer cylinder, 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 body and applying this to the outer peripheral surface of the inner cylinder to obtain the seal surface, the outer cylinder can be assembled. There is.

Further, a locking projection is formed on the outer peripheral surface of the inner cylindrical body surrounded by the inner member by projecting outward, and the elastic seal member is locked with the outer cylindrical body or the inner member. Since the engaging portion that holds the protrusion from the vertical direction is formed,
The elastic seal member is made multi-functional so that it can be used as a retainer for the inner cylinder.

Further, in the airtight stick cosmetic container according to the invention of claim 2, the elastic seal member is provided with an elastic flexible portion which makes elastic contact with the outer peripheral surface of the inner cylindrical body, and the inner cylinder of this elastic flexible portion. By elastically contacting the outer peripheral surface of the body, the outer cylindrical body is rotated to obtain 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 inserted into the outer cylinder body 10 so as to project upward from the outer cylinder body 10, and the cosmetic dish cylinder 30 to which the stick-shaped cosmetic material 33 is attached is set to the inner cylinder body 20. The protrusion 35 provided inside and protruding outward from the cosmetic dish cylinder 30 is provided with the vertical slit 2 of the inner cylinder body 20.
2 is engaged with the spiral groove 12 of the outer cylinder body 10 and is guided by the vertical slit 22 by rotating the outer cylinder body 10 to move the projection 35 along the spiral groove 12 to thereby move the inner cylinder. A cylindrical container main body 1 in which the cosmetic dish cylinder 30 is slid up and down with respect to the body 20, and an airtight seal portion 5 and 5a that is pressed against the upper portion of the protruding portion of the inner cylindrical body 20. In an airtight stick cosmetic container provided with a cylindrical cap 2 and 2a attached to the main body 1, at the upper end of the outer cylindrical body 10,
The ring-shaped inner tool 40, 70 surrounding the outer peripheral surface of the lower end of the protruding portion of the inner cylindrical body 20 is provided, and the outer peripheral surface of the inner cylindrical body 20 surrounded by the inner tool 40, 70 is projected outward and locked. An elastic seal member that forms the protrusion 21 and press-contacts the inner peripheral surface of the inner container body 40, 70 with the outer peripheral surface of the protruding portion of the inner cylinder body 20 outside the outer cylinder body 10 to hermetically seal the inside of the cylindrical container body 1 from the outside. 5
0, 60, 80 mounted and elastic seal members 50, 6
The inclined surface 5 as an engaging portion for holding the locking projection 21 from the up and down direction between the outer cylindrical body 10 or the inner tool 70 at 0, 80.
2, 63, 82 are formed.

In the preferred embodiment, the elastic seal member 5
The protrusion 5 that elastically contacts the outer peripheral surface of the inner cylindrical body 10 with the space A or B at 0, 60, 80.
1, 64, 81 are formed.

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 portion thereof, and a spiral groove 12 is formed on the lower inner periphery thereof. Also, the outer cylinder body 1
An opening 13 is formed at the bottom of 0.

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. 4, the inner component 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. Further, on the inner peripheral surface of the lower end portion of the elastic seal member 50, the inclined surface 5 is formed in the circumferential direction.
2 are formed. The elastic seal member 50 is made of soft polyethylene, urethane, rubber or the like.

When the elastic seal members 50 are arranged in the recesses 45 and the recesses 47 of the filling 40 as described above, the outer peripheral surface 53 of the lower end portion of the elastic sealing member 50 is the step portion 46 of the recess 47 of the filling 40. And the outer peripheral surface 5 of the upper end portion of the elastic seal member 50.
A space A is formed between the upper end surface and the inner peripheral surface of the recess 45 of the filling 40.

Then, when the cosmetic dish cylinder 30 is arranged in the inner cylinder 20 and the inner ingredient 40 is mounted from above the inner cylinder 20,
As shown in FIGS. 2 and 3, the lower end surface 4 of the filling 40 is
9 contacts the notch 11 of the outer tubular body 10, and the lower end 55 of the elastic seal member 50 contacts the upper end surface 14 of the outer tubular body 10. 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 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 pressed against the outer peripheral surface of the protrusion of the inner cylindrical body 20 with the space A that can be bent outward, so that the inner cylindrical body 20 and the outer cylindrical body 1
Since the gap generated between 0 can be sealed, it is possible to reliably maintain the airtightness of the inside of the cylindrical container body 1 with respect to the outside.

Further, since the elastic seal member 50 is preliminarily mounted inside the filling 40, the elastic seal member 50 can be easily attached.

Further, the inclined surface 52 of the elastic seal member 50
Is located in a state of being close to the locking projection 21 from above, and as a result, the inner cylindrical body 20 is fixed with the upper and lower sides of the locking projection 21 being sandwiched between the elastic seal member 50 and the outer cylindrical body 10. As a result, the inner cylinder body 20 can be prevented from coming off from the outer cylinder body 10. In this example, a stick-shaped cosmetic container of the type in which the molten cosmetic is directly filled from the lower part of the cylindrical container body 1 that has been assembled is illustrated. 13 is formed, the opening 13 is hermetically sealed by applying a sealant 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 cylinder body 10 is formed into a bottomed cylinder shape.

When the outer cylindrical body 10 is rotated relative to the inner cylindrical body 20, as shown in FIG. 1, the engaging protrusion 3 extends along the spiral groove 12 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 51 formed inward of the upper end of the elastic seal member 50 makes elastic contact with the outer peripheral surface of the inner cylindrical body 20, so that the outer cylindrical body 10 is rotated to slide the cosmetic 33. Dynamic resistance can be generated and a smooth feeding operation can be ensured.

On the other hand, the tubular 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 cylindrical resin sealing member 5 is fixed to the inside of the cylindrical cap 2 from its upper end 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 member 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 by projecting outward on the outer peripheral surface of the inner cylinder 20 surrounded by the inner tool 40, and the elastic seal member 50 is formed between the outer cylinder 10 and the elastic seal member 50. Since the inclined surface 52 for sandwiching the locking projection 21 from the up and down direction is formed, the elastic seal member 50 is made multifunctional,
It 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 outer tubular body 10 and the inner tubular body 20 have complicated shapes. It is possible to improve the productivity and simplify / simplify the assembling work.

FIGS. 5 to 7 show a second 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. 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 covered with the tubular container body 1, the tubular resin sealing 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, as in the first embodiment, the elastic seal member 50 can seal the gap between the inner tubular body 20 and the outer tubular body 10, thus ensuring the airtightness inside the tubular container body 1. Can be held at. 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.

As shown in FIG. 9, the elastic seal member 60 has a ring shape surrounding the inner cylindrical body 20, and a substantially annular middle portion of the outer peripheral surface of the elastic seal member 60 is provided with a single annular projection 61 along the circumferential direction. Has been formed. Further, an inward projection 62 is formed on the inner peripheral surface of the upper end portion of the elastic seal member 60 so as to extend in the circumferential direction, and an inclined surface 63 located above the locking projection 21 is interposed at the lower end portion. Is extended downward and is elastically contacted with the locking projection 21 from the outside in its radial direction, and a thin projecting portion 64 that is flexible and deformable outward is formed so as to hang down in the circumferential direction.

The elastic seal member 60 as described above is used as the filling 4
When it is arranged over the recesses 45, 47 inward of 0, the annular projection 61 of the elastic seal member 60 abuts on the stepped portion 46 of the recess 47 of the inner tool 40, and the upper outer peripheral surface 6 of the elastic seal member 60.
A space A is formed between the upper end surface and the inner peripheral surface of the recess 45 of the inner member 40 so that the upper outer peripheral surface 65 can bend outward. A space B is formed between the protrusion 64 of the elastic seal member 60 and the inner peripheral surface of the outer cylindrical body 10 so that the protrusion 64 can bend outward.

When the cosmetic dish cylinder 30 is placed in the inner cylinder 20 and the inner tool 40 is mounted from above the inner cylinder 20, as shown in FIG. 8, the protrusion 62 of the elastic seal member 60 is shown.
Is pressed against the outer peripheral surface of the projecting portion of the inner tubular body 20 with a space A that can be bent outward, thereby sealing the gap generated between the inner tubular body 20 and the outer tubular body 10, and The airtightness inside the container 1 can be reliably maintained. Further, since the elastic seal member 60 is mounted inside the filling 40 in advance, the elastic seal member 60 can be easily mounted.

Further, the inclined surface 63 of the elastic seal member 60
Is located in a state of being close to the locking projection 21 from above, and as a result, the inner cylindrical body 20 is fixed with the upper and lower sides of the locking projection 21 being sandwiched between the elastic seal member 60 and the outer cylindrical body 10. As a result, the inner cylinder body 20 can be prevented from coming off from the outer cylinder body 10.

Further, the protrusion 64 of the elastic seal member 60
However, since it makes elastic contact with the locking projection 21 of the inner cylindrical body 20 with the space B that can be flexed outwardly, it is possible to generate a rotational sliding resistance when the outer cylindrical body 10 is rotated and the cosmetic 33 is delivered. Therefore, it is possible to ensure a smooth feeding operation.

As described above, in this embodiment, the elastic seal member 60 exerts three functions such as sealing performance, removal of the filling 40, and imparting rotational sliding resistance. 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. Filler 70 of this embodiment
Has a ring shape surrounding the inner cylindrical body 20 and has an upper portion 71.
The outer diameter of the lower part 72 is smaller than that of the lower part 72, and a single annular rib 73 is formed at a substantially middle portion of the outer peripheral surface of the upper part 71 along the circumferential direction. Also, the upper portion 71
An inclined surface 74 located above the locking projection 21 of the inner cylindrical body 20 is formed at the inner corner of the. Furthermore, the lower part 7
A concave portion 76 is formed in the circumferential direction on the inner peripheral surface of 2 through a step portion 75, and a concave portion 78 is formed in the circumferential direction on the lower inner peripheral surface through a step portion 77. Recesses 76, 78
An elastic seal member 80 is arranged over the entire length.

The protrusion 81 formed on the inner periphery of the upper end of the elastic seal member 80 is pressed against the outer peripheral surface of the protrusion of the inner cylindrical body 20 with the space A that can be bent outward, whereby the inner cylindrical body 2 is formed.
Since the gap generated between 0 and the outer cylindrical body 10 can be sealed, it is possible to reliably maintain the airtightness of the inside of the cylindrical container body 1 with respect to the outside. Also in this embodiment, since the projection 81 formed inside the upper end of the elastic seal member 80 makes elastic contact with the outer peripheral surface of the inner cylindrical body 20 and the lower peripheral surface of the locking projection 21, the outer cylindrical body 10 is rotated. As a result, it is possible to generate a rotational sliding resistance when the cosmetic 33 is delivered, and it is possible to ensure a smooth delivery operation.

Further, the elastic seal member 80 is formed with an upwardly inclined surface 82 facing the inclined surface 74 of the inner member 70 with the locking projection 21 interposed therebetween, and the inner cylindrical body 20 is provided with the inclined member 82. When the elastic seal member 80 is attached after that, the inner cylindrical body 20 is sandwiched between the elastic seal member 80 and the inclined surfaces 82 and 74 formed on the filling 70 by the upper and lower sides of the locking projection 21. It is fixed in this state, so that the outer cylinder 1
It is possible to prevent the inner cylindrical body 20 from coming off from 0. Other actions and effects are similar to those of the first embodiment.

In the above-mentioned embodiment, the airtight stick-shaped cosmetic container of the type in which the melted 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.

[0046]

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 locking protrusion is formed on the outer peripheral surface of the inner cylindrical body surrounded by the inner member by projecting outward, and the elastic seal member is locked with the outer cylindrical body or the inner member. Since the engaging portion that holds the protrusion from the vertical direction is formed,
The elastic seal member can be multi-functionalized and used as a retainer for the inner cylinder, and a separate component is required to configure the retainer for the inner cylinder, or an inner cylinder or an outer cylinder. It is possible to prevent the form of the product from becoming complicated, improve the manufacturability, and simplify / simplify the assembling work.

Further, the elastic seal member is provided with an elastic flexible portion which elastically contacts the outer peripheral surface of the inner cylindrical body, and the outer cylindrical body is rotated by elastically contacting the outer peripheral surface of the elastic flexible portion. It is possible to obtain the rotational sliding resistance when the cosmetic is dispensed, and it is possible to guarantee a smooth cosmetic dispensing 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 an inner member and an 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 Outer cylinder 12 Spiral groove 20 Inner cylinder 21 Locking protrusion 22 Vertical slit 30 Cosmetic dish cylinder 33 Stick cosmetic 35 Protrusion 40,70 Inner parts 50, 60, 80 Elastic seal members 51, 64, 81 Projections 52, 63, 82
Slope

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. The airtight stick-shaped cosmetic container, in which the elastic seal member is provided with an engaging portion for sandwiching the locking projection from the vertical direction between the elastic sealing member and the outer cylinder body or the inner tool. 2. The airtight stick-shaped cosmetic container according to claim 1, wherein the elastic seal member is provided with an elastic flexible portion that elastically contacts the outer peripheral surface of the inner cylindrical body.