| 摘要 |
A rotary actuator, preferably for incorporation in articles of furniture, separate mattress supports and beds, said actuator comprising an electric motor with a power supply and a control unit. Via a transmission, the electric motor drives a rotatable arm intended to be secured to a movable part in a structure in which the actuator is incorporated, as well as a fixed arm intended to be secured to a stationary part of the structure. The electric motor with associated transmission is mounted in a tube (10), preferably of quadrangular cross-section. The tube is also utilized for the incorporation of the power supply and the control unit. In an embodiment, the power supply and the control unit are incorporated in a cabinet (20) intended to be inserted into the hollow space of the tube, as the external cross-section of the tube fits the internal cross-section of the tube, and the cabinet has an end member with a protruding edge intended to be engaged with the end of the tube. This avoids an external, expensive cabinet as well as adaptation and configuration of suspensions in the structure in which the actuator is to be incorporated. Also, space is saved, just as sealing against moisture and water is facilitated. |
