Cosmetic stick case using magnetic force

Patent metadata

Field	Value
Publication number	US-11317697-B2
Application number	US-202016992630-A
Country	US
Kind code	B2
Filing date	Aug 13, 2020
Priority date	Sep 20, 2019
Publication date	May 3, 2022
Grant date	May 3, 2022

Abstract

A cosmetic stick case contains a magnetic member. The cosmetic stick case includes a cosmetic stick body, a cosmetic stick inserted into the cosmetic stick body, and a push button for drawing out the cosmetic stick to an outside by a pressing operation. The cosmetic stick body contains a first magnetic force member and the push button contains a second magnetic force member. Attractive force between the first magnetic force member and the second magnetic force member keeps the push button in a fixed state without being shaken while the push button is inserted into the cosmetic stick body.

First claim

What is claimed is:

1. A cosmetic stick case using a magnetic force, the cosmetic stick case comprising:
a cosmetic stick body;
a cosmetic stick inserted into the cosmetic stick body; and
a push button for drawing out the cosmetic stick to an outside by a pressing operation,
wherein the cosmetic stick body is provided with a first magnetic force member and the push button is provided with a second magnetic force member so that the push button is fixed without being shaken by the magnetic force.

2. The cosmetic stick case of claim 1 , wherein the cosmetic stick body is provided with a first fastening portion and the cosmetic stick is provided with a second fastening portion so that the cosmetic stick body and the cosmetic stick are fastened to each other.

3. The cosmetic stick case of claim 2 , wherein one of the first fastening portion and the second fastening portion is formed of a magnet, and the other is formed of a magnet or a magnetic member so that the first and second fastening portions are fastened to each other by the magnetic force.

4. The cosmetic stick case of claim 2 , wherein the first fastening portion and the second fastening portion are configured as protrusions facing each other so that the first fastening portion and the second fastening portion are undercut-fastened.

5. The cosmetic stick case of claim 2 , wherein at least two fastening portions are provided on the cosmetic stick so that the cosmetic stick is prevented from being completely separated from the cosmetic stick body when the cosmetic stick is drawn out.

6. The cosmetic stick case of claim 1 , wherein the first magnetic force member and the second magnetic force member have ring shapes.

7. The cosmetic stick case of claim 1 , wherein the cosmetic stick body is formed at an inner periphery thereof with a latching protrusion, which protrudes inward, so that the second magnetic force member of the push button is caught by the latching protrusion when the push button is pressed.

8. The cosmetic stick case of claim 1 , wherein the cosmetic stick body and the push button are provided with a linear guide groove and a linear guide protrusion, respectively, to guide a linear movement of the push button.

9. The cosmetic stick case of claim 1 , wherein one of the first magnetic force member and the second magnetic force member is formed of a magnet, and the other is formed of a magnet or a magnetic member so that attractive force of the magnet is generated between the first magnetic force member and the second magnetic force member, thereby fixing the push button in a pressed state upon a pressing operation of the push button.

10. The cosmetic stick case of claim 1 , wherein the first magnetic force member and the second magnetic force member are formed of magnets having the same pole so that repulsive force of the magnet is generated between the first magnetic force member and the second magnetic force member, thereby allowing the push button to automatically return to an initial position thereof upon a pressing operation of the push button.

11. The cosmetic stick case of claim 1 , wherein the first magnetic force member is formed of a pair of magnets having mutually different poles, and the second magnetic force member is formed of a magnet and positioned between the pair of first magnetic force members.

12. The cosmetic stick case of claim 11 , wherein the second magnetic force member has a pole the same as a pole of the first magnetic force member, which is positioned in a pressing direction of the push button between the pair of first magnetic force members, to generate repulsive force, and has a pole different from a pole of the first magnetic force member, which is positioned in a return direction of the push button, to generate attractive force.

13. The cosmetic stick case of claim 9 , wherein the attractive force or repulsive force generated between the first magnetic force member and the second magnetic force member is directed in an operation direction of the push button.

14. The cosmetic stick case of claim 1 , wherein the first magnetic force member and the second magnetic force member are formed of magnets which are arranged such that different poles are alternately arranged along an operation direction of the push button, and the first magnetic force member and the second magnetic force member are positioned such that the magnets having mutually different poles face each other.

15. The cosmetic stick case of claim 14 , wherein attractive force of the magnets is generated when the first magnetic force member and the second magnetic force member are positioned to face each other, and repulsive force of the magnets is generated when the first magnetic force member and the second magnetic force member are positioned to offset from each other.

16. The cosmetic stick case of claim 14 , wherein attractive force or repulsive force generated between the first magnetic force member and the second magnetic force member is directed in a direction perpendicular to an operation direction of the push button.

17. The cosmetic stick case of claim 10 , wherein attractive force or repulsive force generated between the first magnetic force member and the second magnetic force member is directed in an operation direction of the push button.

18. The cosmetic stick case of claim 11 , wherein attractive force or repulsive force generated between the first magnetic force member and the second magnetic force member is directed in an operation direction of the push button.

Assignees

• Amorepacific Corp

Inventors

• Oh Ju Won

Classifications

• B65D83/76

  for dispensing fluent contents by means of a piston · CPC title

• A45D40/065

  with self-contained covering means · CPC title

• A45D40/02

  Casings wherein movement of the lipstick or like solid is a sliding movement (A45D40/06 takes precedence) · CPC title

• A45D2040/0025

  Details of lipstick or like casings · CPC title

• A45D40/04 Primary

  effected by a screw · CPC title