Gasket for cosmetic container and cosmetic container

Abstract

[Problem to be Solved] To provide a cosmetics container gasket and a cosmetics container that can be comfortably used by a user. [Solution] The cosmetics container gasket according to the present invention is a cosmetics container gasket in which an applicator for applying a cosmetic material is inserted and withdrawn, and which is disposed at an opening portion of a cosmetics container main body in which the cosmetic material is held; wherein with the gasket, an opening end portion opposite to the cosmetics container main body is formed in a protruding shape in a direction opposite to the cosmetics container main body; a portion between the main body portion of the gasket and the opening end portion is configured as a first inclined portion that gradually increases in diameter from the main body portion toward the opening end portion; and the terminal end portion of the first inclined portion is the opening end portion, and the diameter of the opening end portion is configured to be larger than the diameter of the outer peripheral surface of the wall portion configuring the main body portion.

1 . A cosmetics container gasket, in which an applicator for applying a cosmetic material is inserted and withdrawn, and which is disposed at an opening portion of a cosmetics container main body in which the cosmetic material is held; wherein
 the gasket includes a gasket main body portion and an enlarged diameter portion being located at an upper side of the gasket main body portion;   when the gasket is disposed at the opening portion of the cosmetics container main body, a lower end portion of the enlarged diameter portion of the gasket is in contact with an upper end portion of the opening portion of the cosmetics container main body;   with the gasket, an opening end portion opposite to the cosmetics container main body is formed in a protruding shape in a direction opposite to the cosmetics container main body;   a portion between a predetermined position of an inner side surface of the main body portion of the gasket and the opening end portion is configured as a first inclined portion that gradually increases in diameter from the main body portion toward the opening end portion; and   the predetermined position is a lower position than the lower end portion of the enlarged diameter portion;   a terminal end portion of the first inclined portion is the opening end portion, and the diameter of the opening end portion is configured to be larger than the diameter of the outer peripheral surface of the wall portion configuring the main body portion.   
     
     
         2 . The cosmetics container gasket according to  claim 1 , wherein
 a second opening end portion of the gasket on the cosmetics container main body side is configured as a first cosmetic material adjustment mechanism formed smaller than the outer shape of the applicator; and   the first inclined portion is configured as a second cosmetic material adjustment mechanism formed such that the direction of a line perpendicular to a tangent thereof approaches the vertical direction toward the terminal end portion.   
     
     
         3 . The cosmetics container gasket according to  claim 1 , wherein the terminal end portion is configured as a curved surface. 
     
     
         4 . The cosmetics container gasket according to  claim 1 , wherein the outer portion of the opening end portion is configured as a second inclined portion inclined downward from the opening end portion. 
     
     
         5 . The cosmetics container gasket according to  claim 2 , wherein the inclination angle of the central portion of the second inclined portion (the inclination angle with respect to the center axis of the gasket) is substantially equal to the inclination angle of the central portion of the first inclined portion, or equal to or less than the inclination angle of the central portion of the first inclined portion. 
     
     
         6 . The cosmetics container gasket according to  claim 1 , wherein the ratio (dC/dA) of the opening diameter dC of the opening end portion to the average opening diameter dA of the main body portion is 1.5 or greater and 1.6 or less. 
     
     
         7 . A cosmetics container comprising a cosmetics container gasket described in  claim 1 .