| 摘要 |
<p>The device (10) has a cylindrical movable element (4) made of electrically conductive material, and displaced between initial and activation positions when pressure is exerted on a coating (3). A contact region (5) and an electrical contact (6) are electrically separated from one another in the initial position, and brought into electrical contact with one another for triggering a sound alarm signal in the activation position. The element is in the form of an electrical contact to which a tension is applied, and touches the contact (6) with a closed current circuit in the activation position. An independent claim is also included for a safety arrangement comprising an alarm activating device.</p> |
