| 摘要 |
A frame of square tubular metal includes a U-shaped base and a pair of parallel spaced support members projecting upwardly from the base at an inclined angle for supporting a pair of telescopic arms. A seat extends between the arms and is supported by a pair of brackets adjustably clamped to the arms. Each arm is connected to a corresponding reversible motor driven screw jack which extends vertically under the arm to the base, and the motors are electrically connected for simultaneous operation to move the arms and seat member between an upper elevated position and a lower retracted position. The seat may be removed by lifting the seat from the brackets which also support the seat for automatic tilting. The seat may be a toilet seat with side wings or may be a seat connected to a back support panel.
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