| 摘要 |
<p>An electromechanical adjusting device for pivotable head and/or foot parts of a bed frame with a pivot in the form of a rod movable with the pivotable part and extending transversely of the bed frame comprises a reversible rotary electric motor whose rotor shaft extends at right angles to the rod and drives a worm and worm gear and a pinion for driving the rod and itself driven by the worm and worm gear through spring clutch means, the adjusting device being supported by the rod.</p> |
