| 摘要 |
Motor-driven support apparatus for the upholstery of a piece of furniture used to sit on or lie down on, especially for a mattress for a bed. Apparatus includes a first support element having first and second longitudinal rails, and a second supporting element displaceable by a drive. The second support element is pivotable relative to the first support element. The first longitudinal rail is hollow profiled to receive parts of the drive. A drive motor is outside the first longitudinal rail, with an end opposite an output shaft of the drive motor. A recess is formed in a wall of the first rail faces the second rail. The output shaft of the drive motor, or a first transmission element, protrudes into the first rail, through the recess, and engages a second transmission element inside the first rail.
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