EP 4356779 A1 20240424 - AIRTIGHT STRUCTURE OF AIRTIGHT POWDER BOX
Title (en)
AIRTIGHT STRUCTURE OF AIRTIGHT POWDER BOX
Title (de)
LUFTDICHTE STRUKTUR FÜR EINE LUFTDICHTE PULVERBOX
Title (fr)
STRUCTURE ÉTANCHE À L'AIR DE BOÎTE À POUDRE ÉTANCHE À L'AIR
Publication
Application
Priority
- CN 202122500720 U 20211018
- CN 2022115319 W 20220827
Abstract (en)
The utility model provides an airtight structure of an airtight powder case, including a powder tray and an inner lid, where the inner lid is hinged to one side of the powder tray through a rotating shaft; the inner lid is configured to open and close the powder tray; an aperture of the powder tray is provided with a seal ring; the seal ring includes a first seal ring and a second seal ring; a lower side of the second seal ring is located at the aperture of the powder tray; a lower side of the first seal ring is connected to an upper side of the second seal ring (a die may be used for integral injection molding); the second seal ring is hard, while the first seal ring is soft; an upper side of the first seal ring is shaped as a downward flanging, and the flanging forms a top; and a bottom of the inner lid is configured to abut against the top of the flanging. The bottom of the inner lid squeezes the top of the flanging, such that the flanging of the first seal ring further deforms to effectively enhance airtightness. The utility model achieves desirable airtightness, can protect a cosmetic in the powder case from moisture, and can prolong the service life of the cosmetic.
IPC 8 full level
A45D 33/22 (2006.01); A45D 33/34 (2006.01)
CPC (source: EP KR)
A45D 33/003 (2013.01 - EP); A45D 33/24 (2013.01 - KR); A45D 33/34 (2013.01 - KR); A45D 2200/051 (2013.01 - EP KR)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
EP 4356779 A1 20240424; CN 216316160 U 20220419; JP 3246960 U 20240607; KR 20240000155 U 20240126; WO 2023065821 A1 20230427
DOCDB simple family (application)
EP 22882440 A 20220827; CN 202122500720 U 20211018; CN 2022115319 W 20220827; JP 2023600168 U 20220827; KR 20237000060 U 20220827