Linear actuator for beds, slatted beds or chairs
AssigneeLinak A/S
InventorsJens J. Nielsen, Norbert Klinke
Life of this patent
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Abstract
An actuator for beds, slatted beds or chairs of the type accommodating, in a cabinet, two drive units based on a spindle and a spindle nut configured as an adjustment element, cooperating with an arm of a rotary shaft for a backrest section and a legrest section, respectively, in the bed, the mattress support or the chair. The two spindles are rotational interconnected and are driven by a common reversible electric motor. By having just one motor and one transmissions, as well as no switching mechanism between the two spindles, a simple and inexpensive structure is provided.
Claims11
An actuator for beds and slatted beds or chairs, comprising
- a) a cabinet with
- b) two drive units consisting of
- bi) a spindle and
- bii) a spindle nut configured as an adjustment element secured against rotation, wherein one end of the adjustment element is configured for cooperation with an arm of a rotary shaft for a backrest section and a legrest section, respectively, in a bed or a slatted bed in which the actuator is incorporated,
- c) a reversible electric motor,
- d) a transmission between the electric motor and the spindle for driving the spindle,
- wherein
- e) the spindles are rotationally interconnected and are driven by the common motor.
Dependencies are inferred from the claim text.