| 摘要 |
<p>The arrangement consists of a label holder and push (call) button for an electrical call system. Both the holder and button are designed to be engaged in the holes of a name-plate/button plaque behind which are electrical contacts which send an electrical signal when the pushbutton is pressed. The label holder, pushbutton body has a narrow rectangular shape, having a slot at one end into which the pushbutton is located. The label holder part projects through the one slot in the name-plate button plaque, and the pushbutton projects through another slot in the plate. The pushbutton (4) has a transversal tongue (13) which presses against a stop so as to limit the projection outwards of the button under action of the spring (15). The tongue (13) also maintains the button (4) in its housing.</p> |
