Title:
MASK STRUCTURE, AND MASK
Document Type and Number:
Japanese Patent JP2003320043
Kind Code:
A
Abstract:
To reduce a mask pressure-contact trace when a mask is attached, and to make the mask easily attached and detached on the face even when having spectacles on.
This mask structure 1 having a three-dimensional shape for covering a nose and a mouth includes an outer frame 2 contacting with the face, one or more of U-shaped rib(s) 3 projected from the outer frame 2 to impart the three-dimensional shape, and a cross-sectional part 4 crossing the outer frame 2 to be positioned in an under side of the nose, and the mask using the structure 1 is also provided.
Inventors:
TSUBOTA KAZUO
Application Number:
JP2002132282A
Publication Date:
November 11, 2003
Filing Date:
May 08, 2002
Export Citation:
Assignee:
TSUBOTA KK
International Classes:
A62B18/08; A62B18/02; (IPC1-7): A62B18/02; A62B18/08
Attorney, Agent or Firm:
Okuyama Shoichi (2 outside)