摘要 |
<p>Rotating catch comprises a shaft (4) arranged on a support (1) and fixed to an arm (5) which extends through a passage when in the locking position and a sensor for detecting a force (F) exerted on the arm in the locking position and for actuating a safety device when a prescribed force is exceeded. Preferred Features: The sensor detects the force acting on the arm from above. The prescribed force is determined in such a way that it is one third of the gravitational force of an adult person which acts on the free end of the arm in the locking position. The safety device has an alarm unit (13).</p> |