Patent ID: 6652028
Filing Date: 2003-11-25
Classification: B60N

Abstract:
A lumbar support with a variable apex comprising:at least one guide element adapted to be disposed within a seat, said guide element having an upper stop and a lower stop; a bowing element disposed to travel on said guide element, said bowing element having an upper portion and a lower portion; a first traction element operatively engaged to draw said upper portion of said bowing element toward said lower portion of said bowing element such that said lower portion of said bowing element is drawn into abutment with said lower stop and such that a first convexity is formed in said bowing element as said traction element continues to draw said upper portion of said bowing element further towards said lower stop; and a second traction element operatively engaged to draw said lower portion of said bowing element toward said upper portion of said bowing element such that said upper portion of said bowing element is drawn into abutment with said upper stop and such that a second convexity is formed in said bowing element as said traction element continues to draw said lower portion of said bowing element further towards said upper stop.