| 摘要 |
<p>Arrester for press key switch has thermoplastics, injection-moulded, operating key in insulating casing actuated by a pressure-spring and vaguely heart-shaped control curve. Two arresting switch positions are achieved with the aid of a control component moving inside the casing. The control component is designed as slide with switch peg moving within the control curve, and glides in a rectangular opening of the casing. The switch cam has a cross-section in form of a hexagon standing on 1 point.</p> |
