AIRCRAFT ARMREST RAIL ROLLER LINKAGE APPARATUS

摘要

An aircraft armrest may incorporate a rail roller linkage. The roller linkage may include an armrest plate, a rail attached to an aircraft seat assembly, a top roller link, and a bottom roller link. The top roller link may have a threaded upper adjustment cylinder, a pivot joint, and a pair of grooved rollers diagonally disposed on either side of the pivot. The bottom roller link may have an unthreaded lower adjustment cylinder, a pivot joint, and a pair of grooved rollers diagonally disposed on either side of the pivot. The grooved rollers may mesh with the rail. The roller linkage may include a roller adjustment screw, having a threaded portion, and extending through both of the adjustment cylinders. A compression spring may bias the roller link around the rail and may be disposed between the top roller link and the bottom roller link and surrounding the roller adjustment screw.

主权项

1. An aircraft armrest rail roller linkage apparatus comprising a plurality of rollers meshing with a rail and attached to a pair of links for providing smooth uninterrupted movement of the aircraft armrest rail roller linkage about the rail, wherein the pair of links are pivotally connected to each other, wherein a single adjustment screw is disposed between the pair of links for adjusting the pressure exerted by the rollers on the rail, and wherein a compression spring is disposed around the single adjustment screw and between the pair of links for providing pre-tension on the single adjustment screw and for holding the plurality of rollers in position about the rail as the plurality of rollers wear over time.