Bar-Like Cosmetic Delivering Container

Abstract

Provided is a bar-like cosmetic delivering container which is internally sealed and suppresses the cosmetic from forming a play due to negative pressure and prevents the lipstick from contacting the inner surface of a lid sleeve body. The bar-like cosmetic delivering container adapted to project and retract the cosmetic by relative rotation between a receiving sleeve body and an outer sleeve body, wherein a lid sleeve body is provided with a sealing sleeve body adapted to fit on the outer sleeve body, thereby sealing the interior of the container. This ensures that even when the lid sleeve body is opened to release the sealing sleeve body, the receiving sleeve body alone is not internally subjected to negative pressure, preventing the lipstick from floating up or forming a play. Further, since the lid sleeve body and the outer sleeve body are fitted together by the sealing sleeve body, relative rotation between the lid sleeve body and the outer sleeve body does not deliver or screw out the lipstick in the container, never causing the lipstick to contact the top surface of the lid sleeve body.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a general longitudinal cross section of the container for feeding a stick-type cosmetic material of the invention.

FIG. 2 is a partially enlarged cross section of the container for feeding a stick-type cosmetic material of FIG. 1.

FIG. 3 is a perspective exploded view of the container for feeding a stick-type cosmetic material of the invention.

FIG. 4 is a perspective view showing a prior art.

DESCRIPTION OF REFERENCE NUMERALS

• 1. container
• 2. outer cylinder
• 3. cylindrical cover
• 4. cylindrical holding member
• 5. hermetically-covering cylindrical member
• 6. receiving member
• 7. cylindrical fitting member
• 8. cylindrical sealing member
• 9. ring
• 10. outer cylindrical case
• 11. spirally-grooved member
• 12. spiral groove
• 13. gap
• 14. annular rib
• 17. vertical guide slot
• 21. engagement projection
• K. lipstick

BEST MODE FOR CARRYING OUT THE INVENTION

An embodiment of the container for feeding a cosmetic material of the invention is described with reference to the drawings.

As shown in FIG. 1, a container for feeding a stick-type cosmetic material 1 (hereafter referred to as “container 1”) comprises an outer cylinder 2, a cylindrical cover 3 detachably fitting to the outer cylinder 2, a cylindrical holding member 4 rotatably provided inside the outer cylinder 2, a receiving member 6 ascendably and descendably disposed inside the cylindrical holding member 4, a lipstick K as a cosmetic material fixed to the receiving member 6, and the like.

As shown in FIG. 3, the cylindrical cover 3 is shaped like a cylinder with a lid and is integrally provided on its inner surface with a hermetically-covering cylindrical member 5 having a lid. The hermetically-covering cylindrical member 5 is made of an elastic material such as rubber, synthetic resin, or the like. As shown in FIG. 2, the outer surface of the lower portion of the hermetically-covering cylindrical member 5 has a concave shape, and a gap 13 is formed between the outer surface of the lower portion of the hermetically-covering cylindrical member 5 and the inner surface of the cylindrical cover 3.

The outer cylinder 2 comprises an outer cylindrical case 10, a spirally-grooved member 11 fixed non-rotatably inside the outer cylindrical case 10, a cylindrical fitting member 7, and the like. The cylindrical holding member 4 is rotatably and non-slidably provided inside the spirally-grooved member 11. The bottom of the outer cylindrical case 10 is sealed by, for example, attaching a sealing member (not shown), or the like.

The cylindrical fitting member 7 has a cylindrical shape and is non-rotatably and integrally provided on the upper end of the outer cylindrical case 10. The cylindrical fitting member 7 has a ring 9 projecting outwardly in its substantially center portion. The portion under the ring 9 of the cylindrical fitting member 7 is integrally fitted to the inner surface of the outer cylindrical case 10, while the portion above the ring 9 of the cylindrical fitting member 7 curves outwardly in such a manner as to fit to the inner surface of the lower end of the cylindrical cover 3. An annular rib 14 projecting outwardly is formed directly under the upper end of the cylindrical fitting member 7.

Inside the cylindrical fitting member 7, a cylindrical sealing member 8 is attached hermitically and non-rotatably. The sealing member 8 has a cylindrical shape and is made of an elastic material. The inner surface of the upper portion of the sealing member 8 hermetically and slidably contacts the outer surface of the cylindrical holding member 4.

The spirally-grooved member 11 has two spiral grooves. The number of spiral grooves 12 is not limited to two.

The cylindrical holding member 4 is provided inside the spirally-grooved member 11 in a rotatable manner thereto. At the side of the cylindrical holding member 4, two vertical guide slots 17 facing each other across the central axis are formed reaching substantially the central part of the cylindrical holding member 4 in parallel with the center of the axis.

Inside the cylindrical holding member 4, the receiving member 6 fixing the lipstick K is slidably provided. The engagement projections 21 are formed at two places in such a manner as to project outwardly from the receiving member 6, and penetrate the vertical guide slots 17 to be engaged into the spiral grooves 12. The number of engagement projections is not limited to two, and may be determined according to the number of the spiral grooves 12.

Hereinafter, action of the container for feeding a stick-type cosmetic material 1 is described.

When the cylindrical cover 3 is mounted to the outer cylinder 2, the inner surface of the lower end of the cylindrical cover 3 fits to the outer surface of the cylindrical fitting member 7 and simultaneously the hermetically-covering cylindrical member 5 fits to the upper outer surface of the cylindrical fitting member 7. Due to the gap 13 formed between the hermetically-covering cylindrical member 5 and the cylindrical cover 3, the annular rib 14 formed in the cylindrical fitting member 7 presses and deforms the hermetically-covering cylindrical member 5 from the inward direction to the outward direction, thereby bringing the cylindrical fitting member 7 into contact with the hermetically-covering cylindrical member 5.

Since the cylindrical sealing member 8 maintains airtightness between the cylindrical fitting member 7 and the cylindrical holding member 4, the inside of the container 1 (i.e., the lipstick K holding part) is held airtight. This prevents the lipstick K held in the cylindrical holding member 4 from drying, etc.

The cylindrical cover 3 fits to the outer cylinder 2 via the hermetically-covering cylindrical member 5 and does not fit to the cylindrical holding member 4. Therefore, if the outer cylinder 2 and the cylindrical cover 3 are rotated relative to each other in the above-described state, the cylindrical holding member 4 does not rotate. This prevents the lipstick K from moving in the cylindrical holding member 4 when the cylindrical cover 3 is accidentally rotated during storage. Therefore, the upper end of the lipstick K does not contact the inner surface of the roof of the cylindrical cover 3 (i.e., the hermetically-covering cylindrical member 5), and thus, no so-called “roof contact of the lipstick” occurs.

When the cylindrical cover 3 is removed from the outer cylinder 2 while using the lipstick K, the hermetically-covering cylindrical member 5 is pulled up while remaining fitted to the cylindrical fitting member 7, which reduces the atmospheric pressure inside the container. However, since a change in atmospheric pressure occurs not only inside the cylindrical holding member 4 but also inside the whole container 1, the lipstick K is not pulled up by negative pressure, and moreover there is no breaking or “roof contact” of the lipstick K caused by opening or closing the cylindrical cover 3.

When the outer cylindrical case 10 and the cylindrical holding member 4 are rotated relative to each other after removing the cylindrical cover 3, the receiving member 6 goes up in the cylindrical holding member 4 along the vertical guide slots 17, and thus the lipstick K is extended from the open end of the cylindrical holding member 4.

On the contrary, when the lipstick K is retracted in the cylindrical holding member 4 by performing the reverse operation, the cylindrical cover 3 is fitted to the outer cylinder 2 to thereby seal the container 1. In the invention, examples of the cosmetic materials are not limited to lipstick.

Claims

1. A container for feeding a stick-type cosmetic material comprising: an outer cylinder;a cylindrical cover detachably fitting to the outer cylinder;a cylindrical holding member provided inside the outer cylinder in a rotatable manner relative to the outer cylinder;a stick-type cosmetic material held movably in an axial direction in the cylindrical holding member, the cosmetic material being extended from and retracted into the cylindrical holding member through an open end thereof by rotating the outer cylinder and the cylindrical holding member relative to each other; anda hermetically-covering cylindrical member provided on an inner surface of the cylindrical cover, the hermetically-covering cylindrical member fitting hermetically to a cylindrical fitting member disposed at an upper portion of the outer cylinder to maintain airtightness.

2. The container for feeding a stick-type cosmetic material according to claim 1, wherein the cylindrical fitting member has, on its upper outer surface, an annular rib pressing an outer surface of a lower end of the hermetically-covering cylindrical member; andthe outer surface of the lower end of the hermetically-covering cylindrical member and an inner surface of the cylindrical cover form a gap as a space allowing deformation of the lower end of the hermetically-covering cylindrical member.

3. The container for feeding a stick-type cosmetic material according to claim 1 or 2, further comprising: a receiving member provided in such a manner as to move in the axial direction in the cylindrical holding member integrally with the stick-type cosmetic material by rotation of the outer cylinder and the cylindrical holding member relative to each other; andthe annular rib provided at substantially the same height as an upper portion of the receiving member positioned at the lowest end of the cylindrical holding member.

4. The container for feeding a stick-type cosmetic material according to any one of claims 1 to 3, further comprising a cylindrical sealing member provided inside the cylindrical fitting member in such a manner as to slidably and hermetically contact an outer surface of the cylindrical holding member.