Electrically motorised adjustable support device

Abstract

The electrically motorised adjustable support device for supporting a cushion of a sitting and/or lying furniture, in particular a mattress of a bed, comprises a first support part and a second support part for supporting the cushion, wherein the support parts are pivotably adjustable relative to each other. An electrically motorised drive device for adjusting the support parts relative to each other comprises at least one electric motor and at least one driven member movable translationally along a driven axis with at least one mechanical coupling element for adjust-technical coupling of the or each driven member to a support part to be adjusted. According to the invention, at least one pusher is arranged movably along a translation axis at or in the first support part, wherein the pusher is operatively connected to the electrically motorised drive device on the one hand and to the second support part on the other hand, such that the support parts are adjusted relative to each other during a translational movement of the pusher, wherein the driven axis and the translation axis are arranged angularly to each other, in particular at an angle of 90° or approximately 90°.

1 . An electrically motorised adjustable support device for supporting a cushion of a sitting and/or lying furniture, in particular a mattress of a bed, comprising:
 a first support part and a second support part for supporting the cushion, wherein the support parts are pivotably adjustable relative to each other,   an electrically motorised drive device for adjusting the support relative to each other, which comprises at least one electric motor and at least one driven member, which is translationally movable along a driven axis, with at least one mechanical coupling element for adjust-technical coupling of the or each driven member to a support part to be adjusted,   at least one pusher is arranged movably along a translation axis at or in the first support part, wherein the pusher is operatively connected to the electrically motorised drive device on the one hand and to the second support part on the other hand, such that the support parts are adjusted relative to each other during a translational movement of the pusher, and   that the driven axis and the translation axis are arranged angularly to each other, in particular at an angle of 90° or approximately 90°.   
     
     
         2 . The support device according to  claim 1 , wherein the first support part comprises two longitudinal members spaced apart from each other transversely to the translation axis. 
     
     
         3 . The support device according to  claim 2 , wherein a pusher movable along a related translation axis is arranged in or at the two longitudinal members, respectively, wherein each pusher is operatively connected to the or a driven member of the electrically motorised drive device on the one hand and to the second support part on the other hand for adjusting the support parts relative to each other. 
     
     
         4 . The support device according to  claim 3 , wherein at least one longitudinal member is hollow at least sectionally and defines a cavity, in which the related pusher is accommodated and guided movably along the related translation axis. 
     
     
         5 . The support device according to  claim 3 , wherein the pushers are operatively connected to a common driven member of the electrically motorised drive device, such that, when the driven member moves along the driven axis, the pushers are moved in the same direction along the respective related translation axis. 
     
     
         6 . The support device according to  claim 3 , wherein the electrically motorised drive device comprises two driven members, each of which is operatively connected to one of the pushers, such that, when the driven members are moved along the driven axis, the pushers are moved in the same direction along the respective related translation axis. 
     
     
         7 . The support device according to  claim 3 , wherein a transmission is arranged between at least one driven member of the electrically motorised drive device and at least one pusher. 
     
     
         8 . The support device according to  claim 7 , wherein the transmission is formed as a lever transmission. 
     
     
         9 . The support device according to  claim 8 , wherein the lever transmission comprises a two-armed first lever arranged at a rotation point about a rotation axis,
 its first lever arm is hinge-rotatably connected to one end of a second lever and its other end is hinge-rotatably connected to a related coupling element, and   its second lever arm cooperates with the related pusher for adjusting the support parts relative to each other.   
     
     
         10 . The support device according to  claim 9 , wherein the lever transmission comprises a third lever, its one end is connected hinge-rotatably to the second lever arm of the first lever and its other end is connected hinge-rotatably to the pusher. 
     
     
         11 . The support device according to  claim 9 , wherein the rotation axis of the first lever is arranged perpendicularly or approximately perpendicularly to the translation axis. 
     
     
         12 . The support device according to  claim 1 , wherein the electrically motorised drive device comprises a spindle drive with a threaded spindle and a spindle nut arranged on the threaded spindle. 
     
     
         13 . The support device according to  claim 12 , wherein the spindle nut is or can be brought into rotation drive connection with an electric motor of the electrically motorised drive device, wherein the threaded spindle is twist-proof and arranged movably in its axial direction and forms the driven member of the electrically motorised drive device. 
     
     
         14 . The support device according to  claim 1 , wherein the first support part comprises at least one transverse member, which is at least sectionally hollow and defines a cavity, in which the electrically motorised drive device including electric motor is accommodated. 
     
     
         15 . The support device according to  claim 1 , wherein the support parts are connected to each other, so that in an starting position of the adjustment movement they span a substantially horizontal support plane and in an end position of the adjustment movement they are arranged angularly to each other. 
     
     
         16 . The support device according to  claim 1 , wherein the end of each pusher facing the second support part cooperates with a contact surface of a cam body, which is fixed or formed at the second support part, wherein the contact surface is formed, such that the support parts are pivotally adjusted relative to each other during a translational movement of the pusher. 
     
     
         17 . The support device according to  claim 1 , wherein the support device is formed in two parts with respect to the support parts and consists of the first support part and the second support part. 
     
     
         18 . A furniture, with a support device according to  claim 1 . 
     
     
         19 . A bed, having a substructure and a cushion device, in particular a mattress, laid on the substructure, wherein a support device according to  claim 1  is arranged between the substructure and the cushion device.