Item of Seating Furniture with Seat Depth Adjustment

Abstract

An item of seating furniture employs a seat depth adjustment, in which the seat is mounted displaceably relative to a backrest frame. A pivotable lower backrest frame is mounted on the backrest frame. The lower backrest frame is connected to the rear part of the seat. The displaceable seat thereby remains connected to the backrest, and a horizontal gap does not arise between the backrest and seat, which horizontal gap could impair the seating comfort and interfere in the overall appearance of the item of seating furniture. The seat depth adjustment is in particular also suitable for use with synchronous mechanisms.

1 . Item of seating furniture with a seat and a backrest frame, wherein the seat is displaceable relative to the backrest frame in order to change the seat depth, characterized by a lower backrest frame which is connected to the rear part of the seat and is mounted pivotably on the backrest frame. 
     
     
         2 . Item of seating furniture according to  claim 1 , with a lumbar support carrier which is fastened at one end to the backrest frame and at the other end to the lower backrest frame and carries a lumbar support. 
     
     
         3 . Item of seating furniture according to  claim 2 , wherein the lumbar support carrier has a transverse carrier and a longitudinal carrier which is connected to the transverse carrier and to the lower backrest frame, wherein the lumbar support is mounted displaceably on the longitudinal carrier. 
     
     
         4 . Item of seating furniture according to  claim 3 , wherein the longitudinal carrier has a telescopic structure. 
     
     
         5 . Item of seating furniture according to  claim 1 , wherein the lumbar support is provided with adjustment means for adjusting the supporting depth. 
     
     
         6 . Item of seating furniture according to  claim 2 , wherein the lumbar support is provided with adjustment means for adjusting the supporting depth. 
     
     
         7 . Item of seating furniture according to  claim 3 , wherein the lumbar support is provided with adjustment means for adjusting the supporting depth. 
     
     
         8 . Item of seating furniture according to  claim 4 , wherein the lumbar support is provided with adjustment means for adjusting the supporting depth.