Electric seat slide and actuator system

摘要

An electro-mechanical dual linear drive system for adjustably power moving a watercraft seat along a linear travel path. A pair of elongate extruded hollow aluminum rails are mounted in parallelism to a fixed seat support structure. An elongate extruded aluminum hollow slide is non-rotatably and slidably mounted within each rail and driven in a linear travel path for moving the seat load. A lead screw is rotatably mounted within each slide and rail and a traveling nut on each lead screw moves the associated slide. A gear reduction drive mounted on each rail is driving coupled for rotating the associated lead screw. A single electric motor is rotationally drivingly coupled to both gear drive units for synchronously rotating the lead screws in response to motor rotation. Each rail and slide are non-circular and complementary for restraining relative rotation therebetween. A laterally protruding flange along one side edge of the rail bottom wall provides an exteriorly accessible mounting flange on the rail. Likewise, each slide has a planar mounting platform protruding laterally in offset relation to the associated rail to provide seat load fastening access clearance. At least two glides are fixedly carried adjacent longitudinally opposite ends of each slide and each have a generally rectangular cross-sectional configuration generally complemental to that of the slide and rail and generally forming a slide bearing therebetween. Each glide is molded from low friction plastic and has a free-state configuration flex stressed when in assembly on the associated slide and providing peripherally spaced slide bearing zones. A dual rail single lead screw system second embodiment is also disclosed, along with a swivel seat mounting third embodiment.