Title:
SWITCH BOARD
Document Type and Number:
Japanese Patent JPH11195343
Kind Code:
A
Abstract:
To prevent damage on an electric circuit by static electricity invading into a switch part.
In a switch board 20 comprising a push button 17 to push and operate a disk spring 15 through a one-side adhesive sheet 16 to form electric continuity between a first conductive circuit pattern 12 and a second conductive circuit pattern 13, a static hole part 16b is formed in the one-side adhesive sheet 16 between an invasion port for static invading into a switch part S and an air hole part 6a be apart from the plate spring 15, and an earth pattern 18 is formed on an insulating substrate 11.
Inventors:
NAITO SHINGO
Application Number:
JP36865797A
Publication Date:
July 21, 1999
Filing Date:
December 26, 1997
Export Citation:
Assignee:
MITSUMI ELECTRIC CO LTD
International Classes:
H05K9/00; H01H13/02; H01H13/48; H05F3/02; H05K1/02; (IPC1-7): H01H13/02; H01H13/48; H05F3/02; H05K1/02; H05K9/00