Multi-position chair

Abstract

Disclosed are example embodiments of a chair including a seat and a backrest configured as a single unit. The chair further includes a frame supporting the seat and backrest. The chair also includes a front pivot mechanism positioned below a knee area of a seated user, the front pivot mechanism enabling the seat and backrest to transition between an upright position and a reclined position. Additionally, the chair includes a pair of armrests coupled to the seat and backrest, the armrests maintaining a substantially flat orientation throughout the transition between the upright position and the reclined position. The chair further includes a lift mechanism coupled to the frame and the seat and backrest, the lift mechanism configured to adjust a vertical position of the seat and backrest relative to the frame.

1 . A chair comprising:
 a seat and a backrest configured as a single unit;   a frame supporting the seat and backrest;   a front pivot mechanism positioned below a knee area of a seated user, the front pivot mechanism enabling the seat and backrest to transition between an upright position and a reclined position;   a pair of armrests coupled to the seat and backrest, the armrests maintaining a substantially flat orientation throughout the transition between the upright position and the reclined position; and   a lift mechanism coupled to the frame and the seat and backrest, the lift mechanism configured to adjust a vertical position of the seat and backrest relative to the frame.   
     
     
         2 . The chair of  claim 1 , wherein the lift mechanism comprises a manual lift and lock mechanism configured to secure the seat and backrest at a selected height. 
     
     
         3 . The chair of  claim 1 , wherein the lift mechanism comprises a gas spring configured to adjust the height of the seat and backrest based on a user's weight displacement. 
     
     
         4 . The chair of  claim 1 , wherein the lift mechanism comprises an electrically powered screw drive configured to adjust the height of the seat and backrest while the user is seated. 
     
     
         5 . The chair of  claim 1 , wherein the front pivot mechanism allows a reclining range of approximately 0 degrees to between 35 and 40 degrees. 
     
     
         6 . The chair of  claim 1 , further comprising a five-star base with casters, the five-star base providing mobility to the chair. 
     
     
         7 . The chair of  claim 1 , wherein the armrests are connected to the seat and backrest via a linkage system configured to maintain the flat orientation of the armrests throughout the transition between the upright position and the reclined position. 
     
     
         8 . The chair of  claim 1 , wherein the frame is configured to provide stability during the transition between the upright position and the reclined position. 
     
     
         9 . The chair of  claim 1 , wherein the lift mechanism enables height adjustments of the front pivot mechanism to accommodate different user heights and table heights. 
     
     
         10 . The chair of  claim 1 , wherein the chair transitions between the upright position and the reclined position through a single pivot axis. 
     
     
         11 . The chair of  claim 1 , wherein the armrests are detachably mounted to allow removal or reconfiguration. 
     
     
         12 . The chair of  claim 1 , wherein the lift mechanism includes a locking feature that prevents unintentional movement during use. 
     
     
         13 . The chair of  claim 1 , wherein the frame includes a base structure with reinforced support beams to enhance stability. 
     
     
         14 . The chair of  claim 1 , wherein the seat and backrest include a cushioning layer for added comfort. 
     
     
         15 . The chair of  claim 1 , wherein the seat and backrest are covered with a material selected from fabric, leather, or synthetic upholstery. 
     
     
         16 . The chair of  claim 1 , wherein the pivot mechanism includes a damping element configured to control the transition speed between the upright and reclined positions. 
     
     
         17 . The chair of  claim 1 , wherein the armrests include integrated storage compartments. 
     
     
         18 . The chair of  claim 4 , wherein the electrically powered screw drive is operable via a user-controlled interface mounted on the armrest. 
     
     
         19 . The chair of  claim 1 , further comprising a headrest that moves in coordination with the reclined position of the backrest. 
     
     
         20 . The chair of  claim 1 , further comprising a footrest extendable from the base of the chair to support a user's legs in the reclined position.