Nursery chair device with adjustable angle between the seat and a modifiable back and corresponding chair

Abstract

A chair comprises a seat and a back articulated with respect to one another and each articulated on a frame designed to be fixed to the chassis of said nursery device, at least one of said parts of the seat being connected to said seat and said back can be modified.

What is claimed is:  
     
         1 . Nursery device, comprising a chair including a seat and a back, articulated with respect to one another and each mounted articulated on a frame designed to be fixed to the chassis of said nursery device, wherein at least one of said parts is connected to said frame by attachment means which can adopt at least two distinct positions with respect to said part of the seat and which are fixed with respect to said frame, 
 so that the angle formed between said seat and said back can be modified.    
     
     
         2 . Nursery device of  claim 1 , wherein said attachment means can adopt at least two distinct positions are mounted on the back.  
     
     
         3 . Nursery device of  claim 1 , wherein said attachment means are connected to the seat by a sliding pivot type connection.  
     
     
         4 . Nursery device of  claim 1 , wherein said frame is mounted on the other of said parts of the seat by means of a pivot connection and in that the length of the frame portion running between said sliding pivot connection and said pivot connection is fixed.  
     
     
         5 . Nursery device of  claim 3 , wherein said attachment means have at least one part forming a housing for a cylindrical portion of said frame, in which said cylindrical portion is free to rotate and at least one part forming a plate that slides with respect to at least one guide and/or attachment element formed on said part of the seat.  
     
     
         6 . Nursery device of  claim 5 , wherein the sliding plate is guided and/or attached by two runners.  
     
     
         7 . Nursery device of  claim 1 , wherein said seat comprises means for indexing the position of said attachment means with respect to said part of the seat.  
     
     
         8 . Nursery device of  claim 7 , wherein said indexing means comprise at least two recesses.  
     
     
         9 . Nursery device of  claim 1 , wherein it comprises locking means for said attachments with respect to said part of the seat.  
     
     
         10 . Nursery device of  claim 9 , wherein said locking means are actuated, at least to release them, by a single handle.  
     
     
         11 . Nursery device of  claim 10 , wherein said handle is mounted on the upper part of said back, so as to make it possible to unlock and control the adjustment of the angle of said seat with just one hand.  
     
     
         12 . Nursery device of  claim 2 , wherein said attachment means have at least one part forming a housing for a cylindrical portion of said frame, in which said cylindrical portion is free to rotate and at least one part forming a plate that slides with respect to at least one guide and/or attachment element formed on said part of the seat and includes locking means for said attachments with respect to said part of the seat, the locking means are actuated, at least to release them, by a single handle, wherein said handle is mounted on said plate.  
     
     
         13 . Nursery device of  claim 9 , wherein said locking means include recall means which automatically return them to the locked position.  
     
     
         14 . Nursery device of  claim 2 , wherein said seat is attached to said frame, free to rotate, close to its free end.  
     
     
         15 . Nursery device of  claim 1 , wherein said frame defines a closed perimeter that is essentially rectangular shaped.  
     
     
         16 . Nursery device of  claim 1 , wherein said frame is mounted on a pivot on said chassis.  
     
     
         17 . Nursery device of  claim 16 , wherein it uses two similar connection assemblies mounted on said chassis and articulated with respect to it, said connection assemblies being also mounted on a pivot on said frame, on the one hand, and on the other hand on at least one of said parts of the seat so that pivoting said frame with respect to said chassis changes the angle between said seat and said back.  
     
     
         18 . Nursery device of  claim 17 , wherein it comprises locking means for said attachments with respect to said part of the seat, the locking means are actuated, at least to release them, by a single handle, wherein said handle also permits control of the adjustment of the position of said frame with respect to said chassis.  
     
     
         19 . Nursery device of  claim 1 , wherein said chair can be reversed with respect to said chassis.  
     
     
         20 . Nursery device of  claim 1 , wherein it is a pushchair.  
     
     
         21 . Chair designed to equip a nursery device according to  claim 1.