Relaxation chair comprising a flexible support element of the user jointly borne by a back-rest and a seat articulated on one another and mounted movably with sliding on a frame

Abstract

Relaxation chair comprising a flexible support element of the user jointly borne by a back-rest and a seat articulated on one another and mounted movably with sliding on a frame The relaxation chair of the present invention comprises a bearing structure of a flexible support element of the user's body arranged as a seat element and a back-rest element articulated with respect to one another. This bearing structure is guided in sliding on a frame by means of guide rails respectively associated to the seat and back-rest elements. The seat element is for example in the form of a U-shaped frame with a bottom free edge and lateral connecting bars. The seat element comprises an inflection between the bottom free edge and the corresponding articulation end so that the flexible support element is kept at a distance from the bearing structure, above the seat element, including when the user is installed in the chair.

1 . Relaxation chair comprising a frame for the chair to rest on the ground, a flexible support element for supporting a user, articulation means of the flexible support element with respect to the frame, the articulation means comprising a bearing structure comprising a seat element and a back-rest element, supported by the frame, articulated on one another and comprising sliding means running along guiding paths bounded by corresponding rails fixed onto the frame, relaxation chair wherein: 
 the seat element comprises a bottom free edge, securedly fixed to at least one seat connecting bar comprising an articulation end,    the back-rest element comprises a top free edge, securedly fixed to at least one back-rest connecting bar comprising an articulation end,    the flexible support element is fixed to the free edges of the seat and back-rest elements,    the seat element comprises at least one inflection, between the bottom free edge and the corresponding articulation end, so that the flexible support element is kept at a distance from the bearing structure, above the seat element, including when the user is installed in the chair.    
     
     
         2 . Chair according to  claim 1 , wherein the back-rest element comprises at least one inflection, between the top free edge and the corresponding articulation end, so that the flexible support means are kept at a distance from the bearing structure, to the front of the back-rest element, including when the user is installed in the chair.  
     
     
         3 . Chair according to  claim 2 , wherein the inflections are located close to the corresponding free edges of the seat and back-rest elements.  
     
     
         4 . Chair according to  claim 2 , wherein the inflections are located close to the corresponding articulation ends of the seat and back-rest elements.  
     
     
         5 . Chair according to  claim 1 , wherein the seat and back-rest elements each comprise a central connecting bar, substantially perpendicular to the corresponding free edge, so as to each form a T-shaped frame.  
     
     
         6 . Chair according to  claim 1 , wherein the seat and back-rest elements each comprise two lateral connecting bars, substantially perpendicular to the corresponding free edge, so as to each form a U-shaped frame.  
     
     
         7 . Chair according to  claim 1 , wherein the rail associated to the back-rest element is fixed onto the frame in a zone corresponding to the middle zone of the back-rest element, located between the top edge and the corresponding articulation end, so that the guide zone of the back-rest element is located between the bearing zones of the user on the flexible support element.  
     
     
         8 . Chair according to  claim 7 , wherein the rail of the back-rest element is substantially straight and inclined with respect to the bearing plane of the frame on the ground by an angle of about 45° to 55°.  
     
     
         9 . Chair according to  claim 1 , wherein the guide rail associated to the seat element is a single curved rail along which a couple of distant sliding means run.  
     
     
         10 . Chair according to  claim 1 , wherein the guide rail associated to the seat element is composed of two elemental rails, one front and one rear with respect to the chair, along which elemental rails run corresponding sliding means of the seat element that are respectively associated thereto, the elemental rails being substantially straight and inclined in opposition with respect to one another.  
     
     
         11 . Chair according to  claim 10 , wherein the rear elemental rail is inclined with respect to the bearing plane of the frame on the ground by an angle of about 5° to 9°, whereas the front elemental rail is inclined with respect to the bearing plane of the frame on the ground by an angle of about 2° to 6°.  
     
     
         12 . Chair according to  claim 10 , wherein the front elemental rail is inflected in the frontward direction by an angle of about 8° to 12°, with respect to the bearing plane of the frame on the ground.  
     
     
         13 . Chair according to  claim 1 , wherein the flexible support element is any one of a flat arrangement of transverse slats borne by lateral straps, and of rigid elements in the form of a frame articulated on one another the internal spaces whereof which they confine are respectively equipped with elastically deformable means.  
     
     
         14 . Chair according to  claim 1 , comprising accessory means for blocking the bearing structure in any one of its positions to prevent a spontaneous modification of the angle of the dihedron formed by the seat and back-rest elements, when the chair is unoccupied in the folded position.  
     
     
         15 . Chair according to  claim 1 , comprising accessory means for sliding operation assistance of the seat and back-rest elements along the rails that are associated thereto.