Article of furniture for sitting

Abstract

An article of furniture for sitting has a seat element, a back, a support frame having a support and a mechanical structure for transmitting a movement, which connects the support in a rear seat region with the seat element, at least one spring element displacing the seat element in an abutment or return position, the spring element being formed as a front mounting for the seat element and supported on the support which is stationary, the spring element in addition to known restoring function also determining a guidance of the seat element in its front region.

What is claimed as new and desired to be protected by Letters Patent is set forth in the appended claims.  
     
         1 . An article of furniture for sitting, comprising a seat element; a back; a support frame having a support and a mechanical means for transmitting a movement, which connects said support in a rear seat region with said seat element; at least one spring element displacing said seat element in an abutment or return position, said spring element being formed as a front mounting means for said seat element and supported on said support which is stationary, said spring element in addition to known restoring function also determining a guidance of said seat element in its front region.  
     
     
         2 . A sitting article of furniture as defined in  claim 1 , wherein said mechanical means for transmitting a movement include lever means.  
     
     
         3 . A sitting article of furniture as defined in  claim 1 , wherein said mechanical means for transmitting a movement include guide means.  
     
     
         4 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a leaf spring which is tensioned at one side.  
     
     
         5 . A sitting article of furniture as defined in  claim 4 , wherein said leaf spring extends in a seat direction.  
     
     
         6 . A sitting article of furniture as defined in  claim 1 , wherein said spring element has an adjustable spring force.  
     
     
         7 . A sitting article of furniture as defined in  claim 3 , wherein said spring has a support point, said leaf spring being adjustable by displacing said support point.  
     
     
         8 . A sitting article of furniture as defined in  claim 3 , wherein said leaf spring has a spring force which is adjustable by changing a distance between individual leaves of said leaf spring.  
     
     
         9 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a helical spring.  
     
     
         10 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a rubber element.  
     
     
         11 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a metal rubber element.  
     
     
         12 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a hydraulic cushion.  
     
     
         13 . A sitting article of furniture as defined in  claim 1 , wherein said spring element is formed as a pneumatic cushion.  
     
     
         14 . A sitting article of furniture as defined in  claim 1;  and further comprising a back support which is connected with said means for transmitting movement, said back being mounted on said back support.  
     
     
         15 . A sitting article of furniture as defined in  claim 1 , wherein said back is mounted on said seat element; and further comprising a transition region provided between said back and said seat element.  
     
     
         16 . A sitting article of furniture as defined in  claim 15 , wherein said transition region is springy.  
     
     
         17 . A sitting article of furniture as defined in  claim 15 , wherein said transition region is elastic.  
     
     
         18 . A sitting article of furniture as defined in  claim 15 , wherein said back and said seat element together form a seat shell.  
     
     
         19 . A sitting article of furniture as defined in  claim 1 , wherein said seat element has a rest member and a base plate which are displaceable relative to one another.