Ostrolenk, Faber, Gerb & Soffen, LLP
See-saw button device for electronic equipment
 A see-saw button device for electronic equipment includes rates a box fitted with a button, and a board mounted with switches. The button has two press portions on it. Shafts serving as a see-saw fulcrum of the button are provided along a rib formed at an intermediate portion of the two button press portions. The two switches each having an operating portion on an end face thereof are mounted on the board such that their operating portions oppose each other. The two switches are separated by a distance larger than a thickness of the rib of the button. 
NEC Corporation
H H
H01H H01H
inventional additional
Hiroshi
Yamada