Device for adjusting the incline of back rests

Abstract

The invention relates to a device for adjusting the incline of back rests, especially of camping chairs and lawn chairs, wherein the locking action of the back rest is realized by an edge wedging mechanism. It is an object of the invention to propose a device for adjusting the incline of the backrest which makes a continuous adjustment of the incline possible in connection with a simple construction. The object of the invention is solved in that the locking action is released by lifting at least one arm rest ( 5 ).

1 . A device for adjusting the incline of back rests, especially for camping chairs and lawn chairs, wherein the locking action of the back rest is realized by an edge wedging mechanism, characterized in that the locking action is released by lifting at least one of the arm rests ( 5 ).  
     
     
         2 . The device according to    claim 1   , characterized in that a locking rod ( 1 ) connected to one of the arm rests ( 5 ) is guided through a bore ( 2 ) in a metal plate ( 3 ) which is spring-mounted on a slide ( 13 ).  
     
     
         3 . The device according to    claim 2   , characterized in that the metal plate ( 3 ) has two planes ( 10 ,  11 ) which are positioned at an angle, preferably of 5° to 25°, to one another.  
     
     
         4 . The device according to    claim 2    or    3   , characterized in that a release bolt ( 12 ) is integrated in the slide ( 13 ) via which the slide ( 13 ) is guided in a groove ( 17 ,  18 ) of the arm rest ( 5 ).  
     
     
         5 . The device according to    claim 4   , characterized in that the release bolt ( 12 ) is moved upwardly along the lower slanted plane ( 11 ) of the plate by lifting at least one arm rest ( 5 ), so that the metal plate ( 3 ) stands up in a direction against the spring force so that the bore ( 2 ) in the metal plate ( 3 ) is aligned with the locking rod ( 1 ).  
     
     
         6 . The device according to    claim 4    or    5   , characterized in that the release bolt ( 12 ) is vertically guided in the slide ( 13 ).  
     
     
         7 . The device according to one of the    claims 2    to    6   , characterized in that additional guides ( 14 ,  15 ) for the locking rod ( 1 ) are integrated in the slide ( 13 ).  
     
     
         8 . The device according to one of the    claims 2    to    7   , characterized in that the chair legs or lawn chair legs are connected to the slide ( 13 ).  
     
     
         9 . The device according to one of the    claims 2    to    8   , characterized in that the slide ( 13 ) is secured on the top side ( 20 ) of the arm rest ( 5 ) against sliding out.  
     
     
         10 . The device according to one of the proceeding claims, characterized in that the arm rest ( 5 ) is formed with a U-shaped cross-section.