Transmission device for cable control of lumbar support mechanism

A seat assembly comprising:

• a seat member;
• a seat back coupled to said seat member;
• a dual-function comfort mechanism supported from said seat assembly and operable to permit a seat occupant to selectively adjust first and second comfort features;
• transmission means for permitting said seat occupant to independently adjust said first and second comfort features, said transmission means comprising:
• a housing assembly located remotely from said comfort mechanism;
• a gear drive assembly having first and second gear means supported for rotation within said housing assembly;
• an elongated rod partially supported for rotation within said housing assembly, said elongated rod being movable with respect to said housing assembly between a first position and a second position;
• first spool means operable to be rotatably driven by said first gear means;
• first actuation means coupled at one end to said first spool means and adapted to be coupled at its other end to said first comfort feature of said comfort mechanism;
• second spool means operable to be rotatably driven by said second gear means;
• second actuation means coupled at one end to said second spool means and adapted to be coupled at its opposite end to said second comfort feature of said comfort mechanism;
• coupling means for coupling said rod to said first gear means when said rod is in said first position so as to actuate said first actuation means in response to rotation of said rod for selectively adjusting said first comfort feature, and wherein said coupling means is operable for coupling said rod to said second gear means when said rod is in said second position so as to actuate said second actuation means in response to rotation of said rod for selectively adjusting said second comfort feature;
• manually operable means for permitting said seat occupant to selectively move said rod between said first and second positions, and said manually operable means also being operable for permitting said seat occupant to selectively rotate said rod for independently adjusting said first and second comfort features;
• and
• retaining means for positively locating said rod in one of said first and second positions so as to prevent said rod from positively locating in an intermediate position between said first and second positions.