| 摘要 |
<p>A simply structured, easy to operate pushbutton type switch which structured to have a hollow cavity provided down the centre of the switch slab, opening at top, with a position setting groove pass provided to the left side of the inner wall of the cavity, to the right side thereof there is provided a first polarity piece and a second polarity piece connected respectively to both polarities of the Power source by leaders, to have a joint contact movably fitted to an arm extending from the first polarity piece, characteristic in that the pushbutton may be set to an up-and-down movement once it is engaged to said position setting groove by the action of a control shaft positioned to the leftside thereof, and to a shiftwise position setting, to have a steel ball provided buried in the wall to the right side of the pushbutton in order that such a steel ball may float about back-stretched against the joint contact, of flexible material, as the pushbutton is set to up-and-down movements in operation, thereby controlling the joint contact to substantiate a transitional contact with respect to the second polarity piece, that in the manner described above the circuit covered by the switch may be set to on or else off conditions accordingly as desired.</p> |
