US-12617603-B2 - Rotational discharge-type cosmetic container

US12617603B2US 12617603 B2US12617603 B2US 12617603B2US-12617603-B2

Abstract

A rotational discharge-type cosmetic container according to an embodiment of the present invention comprises: an outer container having a coupling extension portion formed therein; an inner container of which rotation is restricted by being fitted into the coupling extension portion of the outer container and in which content is received; a rotary member rotatably coupled to the outer side of the inner container and having at least one discharge port formed therethrough; a rotary operation member connected to the rotary member to be rotated together and having a first screw thread formed thereon; and a piston screw-coupled to the rotary operation member, fitted into the coupling extension portion of the outer container to be movable in a straight line, formed in the inner container and an elevating member having a second screw thread formed on.

Inventors

Do Hoon LEE

Assignees

PUM-TECH KOREA CO., LTD

Dates

Publication Date: 20260505
Application Date: 20221019
Priority Date: 20211109

Claims (14)

1 . A rotational discharge-type cosmetic container comprising: an outer container having a coupling extension portion formed therein; an inner container fitted into the coupling extension portion of the outer container so as to be restricted in rotation to accommodate contents therein; a rotary member rotatably coupled to an outer side of the inner container and having at least one discharge port formed therethrough; a rotary operation member connected to the rotary member to be rotated together and having a first screw thread formed thereon; an elevating member screw-coupled to the rotary operation member, inserted into the coupling extension portion of the outer container so as to be movable in a straight line, and having a second screw thread formed thereon; and a piston formed inside the inner container and coupled to one side of the elevating member to push and discharge the contents toward the discharge port while being moved in a straight line together with the elevating member, wherein the coupling extension portion of the outer container is formed on an inner circumference thereof with a rotation limiting protrusion, and the inner container is formed on an outer circumference thereof with a rotation limiting groove, so that the rotation limiting protrusion and the rotation limiting groove are coupled to each other, thereby limiting the rotation of the inner container.
2 . The rotational discharge-type cosmetic container of claim 1 , wherein the outer container has one open side to which a shoulder is further coupled.
3 . The rotational discharge-type cosmetic container of claim 1 , further comprising: a container cover for opening or closing the rotary member.
4 . The rotational discharge-type cosmetic container of claim 1 , wherein the coupling extension portion has a tube shape extending upward from a center of a bottom of the outer container.
5 . The rotational discharge-type cosmetic container of claim 1 , wherein the coupling extension portion of the outer container is formed on an outer circumference thereof with a straight guide protrusion, and the elevating member is formed on an inner circumference thereof with a straight guide groove, so that the straight guide protrusion and the straight guide groove are coupled to each other, thereby guiding the straight movement of the elevating member.
6 . The rotational discharge-type cosmetic container of claim 1 , wherein the coupling extension portion of the outer container is formed at a center thereof with an insertion hole into which at least a part of the inner container is inserted, and the insertion hole and the inner container are formed therein with a first locking protrusion and a second locking protrusion, respectively, so as to be locked and coupled to each other.
7 . The rotational discharge-type cosmetic container of claim 1 , wherein the rotary member has at least a part exposed from the outer container, and is rotatably coupled to the inner container while surrounding an upper part of the inner container.
8 . The rotational discharge-type cosmetic container of claim 1 , wherein the discharge port is formed on a top surface of the rotary member and includes a straight hole extending from a center to an edge part of the rotary member.
9 . The rotational discharge-type cosmetic container of claim 1 , wherein the rotary member is formed therein with a discharge guide protrusion adjacent to the discharge port, and the discharge guide protrusion protrudes inward from the rotary member.
10 . The rotational discharge-type cosmetic container of claim 1 , wherein the rotary operation member includes an inner wall extending upward from a bottom thereof, a first outer wall spaced apart from the inner wall by a predetermined distance and extending upward, and a second outer wall spaced apart from the first outer wall by a predetermined distance and extending upward.
11 . The rotational discharge-type cosmetic container of claim 10 , wherein the rotary member has an end inserted between the first outer wall and the second outer wall of the rotary operation member, and a plurality of first insertion protrusions and second insertion protrusions are formed on the rotary member and the first outer wall, respectively, so as to be inserted and coupled to each other.
12 . The rotational discharge-type cosmetic container of claim 1 , wherein the elevating member has a side wall divided into at least two parts, and the inner container is formed on a bottom surface thereof with a through-hole, in which the divided side wall passes through the through-hole so as to be inserted into an inner space of the inner container.
13 . A rotational discharge-type cosmetic container comprising: an outer container having a coupling extension portion formed therein; an inner container fitted into the coupling extension portion of the outer container so as to be restricted in rotation to accommodate contents therein; a rotary member rotatably coupled to an outer side of the inner container and having at least one discharge port formed therethrough; a rotary operation member connected to the rotary member to be rotated together and having a first screw thread formed thereon; an elevating member screw-coupled to the rotary operation member, inserted into the coupling extension portion of the outer container so as to be movable in a straight line, and having a second screw thread formed thereon; and a piston formed inside the inner container and coupled to one side of the elevating member to push and discharge the contents toward the discharge port while being moved in a straight line together with the elevating member, wherein the coupling extension portion of the outer container is formed at a center thereof with an insertion hole into which at least a part of the inner container is inserted, and the insertion hole and the inner container are formed therein with a first locking protrusion and a second locking protrusion, respectively, so as to be locked and coupled to each other.
14 . A rotational discharge-type cosmetic container comprising: an outer container having a coupling extension portion formed therein; an inner container fitted into the coupling extension portion of the outer container so as to be restricted in rotation to accommodate contents therein; a rotary member rotatably coupled to an outer side of the inner container and having at least one discharge port formed therethrough; a rotary operation member connected to the rotary member to be rotated together and having a first screw thread formed thereon; an elevating member screw-coupled to the rotary operation member, inserted into the coupling extension portion of the outer container so as to be movable in a straight line, and having a second screw thread formed thereon; and a piston formed inside the inner container and coupled to one side of the elevating member to push and discharge the contents toward the while being moved in a straight line together with the elevating member, wherein the rotary operation member includes an inner wall extending upward from a bottom thereof, a first outer wall spaced apart from the inner wall by a predetermined distance and extending upward, and a second outer wall spaced apart from the first outer wall by a predetermined distance and extending upward.

Description

TECHNICAL FIELD The present invention relates to a cosmetic container and, more specifically, to a rotational discharge-type cosmetic container for converting the rotation operation of the rotary member into straight motion of the elevating member through the rotary operation member to move the piston within the inner container, so that the contents stored in the inner container is smoothly discharged to the outside without leakage. BACKGROUND ART Recently, in the rapidly diversifying modern society, both men and women of all ages use cosmetics as necessary. In particular, women use various types of cosmetics and tools with various colors, and various high-quality cosmetics and tools are released on the market day by day through research and development by cosmetics-related companies. Depending on the purpose of use, the cosmetics are classified into facial cleansing cosmetics used to remove sebum, waste, and pollutants on the skin surface; basic cosmetics used to appropriately supply moisture and oil to the skin; color cosmetics used to express beautiful colors; hair cosmetics used to remove foreign substances of hair or scalp and simultaneously protect the hair and provide nourishment; and perfume obtained by dissolving fragrance in alcohol or the like and used to give fragrance to others. As the above cosmetics are developed, it is also necessary to develop various cosmetic containers capable of containing the cosmetics. In general, in order to store and use cosmetics having a liquid or gel form, such as lotion, cream, gel, shampoo and or rinse, containers simply having an opening and closing function have been used in the related art, and accordingly the cosmetics are taken out from the container and applied to the skin by using a finger or a cosmetic tool such as a puff. However, according to the cosmetic container in the related art, the cosmetics may be completely exposed to the air and oxidized since the cosmetic container in related art is required to be used while a lid of the container is opened, and the cosmetics may be contaminated by bacteria, viruses, molds, and the like since the puff having contacted with the skin is repeatedly contacted with the cosmetics during use, thereby causing skin troubles or shortening the use period. In addition, in the cosmetic container in the related art, since cosmetics are used by dispensing the cosmetics using a finger or a cosmetic tool such as a puff, the used amount of cosmetics fails to be controlled consistently, thereby resulting in waste and inconvenience in use of the cosmetics. Accordingly, a rotational discharge-type cosmetic container, which minimizes deterioration and contamination during using cosmetics, and allows convenience in use and uniformly control the used amount of cosmetics, has been developed. As a related art having the above structure, Korean Registered Patent No. 10-2188196 (hereinafter, referred to as “related art”) discloses a cosmetic container. The above related art includes: an inner case having an inner space; a rotary bezel rotatably coupled to an upper portion of the inner case and having a discharge hole; a rotary member positioned in the inner space and coupled to the rotary bezel so as to be integrally rotated with the rotary bezel; a piston positioned in the inner space and coupled to the rotary member to ascend or descend in conjunction with the rotation of the rotary member, wherein the contents are discharged through the discharge hole by the ascent of the piston. Accordingly, the contents may be conveniently discharged and hygienically used. However, the related art has a structure in which the rotary member is screw-coupled to the center of the piston and an edge of the piston comes into close contact with an inner wall of the inner case. When the piston does not completely come into close contact with the inner case, the piston may be rotated together with the rotary member at the time of the rotation operation of the rotary bevel and fail to ascend and descend with respect to the rotary member as an axis, thereby causing an operation failure. In order to solve the above problems, Korean Registered Patent No. 10-2213437 (hereinafter, referred to as “related art”) discloses a cosmetic container having a screw-driven discharge structure. The above related art includes: a cosmetic storage container having an accommodation space for accommodating cosmetics; a lower case portion installed therein with the cosmetic storage container; an upper case portion fastened to the lower case portion so as to be opened and closed; a cosmetic discharge portion formed on an upper part of the cosmetic storage container to serve to discharge the cosmetics; and a cosmetic transfer means for transferring the cosmetics toward the cosmetic discharge portion, wherein the cosmetic transfer means includes: a rotational force applying portion rotated by an external force and provided with a screw connection portion; a driving screw connected