| 摘要 |
The device has a housing (10) with two side buttons (11,12) on opposite sides and a recess (13) formed between curved inner edges of the two side edges with a central tiltable button (20). A first and second opening (14,15) are partially formed by two corresp. pairs of opposed lateral plates which extend downwards from the upper housing wall. A forward rod and a rear rod (26,27) with lower inclined surfaces formed on the underside of the central button and directly beneath the front or rear end are simultaneously in contact with front and rear elastic contacts (31,32) mounted on a printed circuit (30) inside the housing. |
