Seating furniture item with telescopic leg support element and separate seat inclination adjustment means

Abstract

A seating furniture item with an adjustable-inclination seat part, a back part, a chassis and an at least two-piece leg support connected pivotably on the seat part and/or on the chassis, wherein the parts of the leg support can be displaced relative to one another during pivoting. A part of the leg support is formed by way of a telescopic leg support element which is retracted when the leg support is pivoted in and is extended in order to increase the length of the leg support when the leg support is pivoted out. By way of a first part stroke, a linear actuator brings about a displacement of the seat part relative to the chassis and a simultaneous inclination adjustment of the seat part, wherein no pivoting out or in of the leg support relative to the seat part takes place during this first part stroke of the linear actuator.

What is claimed is: 
     
         1 . A seating furniture item comprising:
 an adjustable-inclination seat part;   a back part;   a chassis; and   an at least two-piece leg support pivotably connected on the seat part and/or on the chassis,   wherein parts of the leg support are adapted to be displaced relative to one another during pivoting,   wherein the seating furniture item is adjustable between a sitting and a reclined position, for which in the sitting position, the leg support is essentially pivoted in below the seat part and, in the reclined position, is pivoted out in front of the seat part such that the seat part is extended by the leg support,   wherein part of the leg support is formed by a telescopic leg support element which is retracted when the leg support is pivoted in and is extended in order to increase the length of the leg support when the leg support is pivoted out,   wherein at least one linear actuator is provided for the adjustment of the seat part and the leg support, the linear actuator generating a linear stroke formed of at least one first and one second part stroke when actuated,   wherein, via the first part stroke, the linear actuator brings about a displacement of the seat part relative to the chassis and a substantial simultaneous inclination adjustment of the seat part,   wherein no pivoting out or in of the leg support relative to the seat part takes place during this first part stroke of the linear actuator, and   wherein, via the second part stroke, the linear actuator brings about pivoting out or in of the leg support relative to the seat part and a substantially simultaneous displacement of the telescopic leg support element.   
     
     
         2 . The seating furniture item according to  claim 1 , wherein, via a part stroke, the linear actuator merely brings about pivoting out or in of the leg support relative to the seat part without an adjustment of the seat part relative to the chassis and without an adjustment of the back part relative to the seat part. 
     
     
         3 . The seating furniture item according to  claim 1 , wherein the seating part, at least during a subphase of the adjustment of the seating furniture item from the sitting to the reclined position, is displaced forward relative to the chassis via a pivot guide, and wherein the pivot guide has a front and a rear handlebar lever, which forms a four-bar linkage with the seat part and the chassis. 
     
     
         4 . The seating furniture item according to  claim 1 , wherein the adjustment movement of the seat part in the direction of the front edge of the seating furniture item is blocked by a chassis-side stop element. 
     
     
         5 . The seating furniture item according to  claim 1 , wherein the pivot guide is subjected to force via at least one tension spring, wherein the tension spring acts between the seat part and the chassis such that it causes the tension spring to shorten during the adjustment movement of the seat part in the direction of the front edge of the seating furniture item. 
     
     
         6 . The seating furniture item according to  claim 1 , wherein the leg support comprises one or more pivotably hinged rails on the seat part on which the telescopic leg support element is movably arranged in the longitudinal direction of the rails. 
     
     
         7 . The seating furniture item according to  claim 1 , wherein, in the sitting position of the seating furniture item, a first and/or a second articulated lever are/is hinged on the seat part and a longitudinal axis formed between the two end hinge points of at least one of the first and/or the second articulated levers is arranged at an angle to the seat part, wherein the end hinge point of said articulated lever facing the seat part is positioned closer to a vertical plane spanned by the front edge of the seat than the end hinge point of said articulated lever facing away from the seat part, and wherein at least one of the first and/or the second articulated levers is coupled to the telescopic leg support element in such a way that an adjustment of one of the first and/or the second articulated lever relative to the seat part brings about pivoting out or in of the leg support relative to the seat part and a simultaneous displacement of the telescopic leg support element along the rails. 
     
     
         8 . The seating furniture item according to  claim 1 , wherein at least one of the first and/or the second articulated levers has a stop element and the stop element comes into contact with a stop surface of a seat part tab connected to the front area of the seat part during the pivoting movement of the leg support. 
     
     
         9 . The seating furniture item according to  claim 1 , wherein, in the sitting position of the seating furniture item, a first and/or a second articulated lever is/are hinged on the seat part and a longitudinal axis formed between the two end joint points by at least one of the first and/or the second articulated levers is arranged at an angle to the seat part, wherein the end hinge point facing the seat part of said articulated lever is positioned closer to a vertical plane spanned by the front edge of the seat part than the end hinge point of said articulated lever facing away from the seat part, wherein, in the sitting position of the seating furniture item, a third and a fourth articulated lever have an orientation in which a longitudinal axis formed between the two end hinge points of at least one of the third and/or the fourth articulated levers is arranged at an angle to the seat part, wherein the end hinge point of said articulated lever facing away from the seat part is positioned closer to a vertical plane spanned by the front edge of the seat than the end hinge point of said articulated lever facing the seat part, wherein the third and the fourth articulated lever, in the sitting position of the seating furniture item, are each connected to a fifth articulated lever with their end hinge points facing the seat part, wherein a control lever is hinged on the one hand to the first or second articulated lever and on the other hand to the third or fourth articulated lever, wherein a coupling lever is hinged to the first and/or the second articulated lever and/or to the third and/or the fourth articulated lever, and wherein the fifth articulated lever is hinged to the third and the fourth articulated lever and, on the other hand, with its free end, is hinged to the telescopic leg support element. 
     
     
         10 . The seating furniture item according to  claim 1 , wherein during a subphase of the pivoting of the seating furniture item from the sitting to the reclined position, the coupling lever is lowered relative to the seat part, and wherein at the same time all sections of the fifth articulated lever are raised relative to the coupling lever. 
     
     
         11 . The seating furniture item according to  claim 1 , wherein the first and the second articulated lever are each hinged on a front part of the seat part and to the coupling lever, the third and fourth articulated levers are each hinged to the coupling lever and to the fifth articulated lever, and wherein one of the third and/or the fourth articulated lever is extended beyond its pivot point on the coupling lever and hinged at its free end on a first end of the control lever, the second end of which is hinged to a central area of one of the first and/or the second articulated levers. 
     
     
         12 . The seating furniture item according to  claim 1 , wherein the linear actuator is coupled with a first end to the chassis and with a second end to the first and/or the second articulated lever via a cross brace connected to the first or the second articulated lever.