Reclining-Chair Mechanism

Reclining-Chair Mechanism

      This is an exercise in mechanical engineering to design a reclining chair so that the chair could recline without bumping the wall.




      This was Steve Hines’ first paid consulting project, done while a second-year industrial-design student at North Carolina State University in Raleigh.

      Like many mechanisms at the time, this started as cardboard cutouts pinned to a board with thumb tacks.  When experimenting by moving the top of the backrest vertically, the midpoint was seen to move at a uniform distance from the point where the wall and horizontal track intersected.  By attaching a link at that point, when the bottom was slid horizontally out from the wall, the top of the backrest maintained a uniform distance from the wall.


     This product is not for sale.  This is shown only as an example of past projects.  HinesLab currently offers consulting in the area of industrial design, novel solutions to your problems as well as a variety of licensable technology.


Glendale, California, USA