Patent ID: 9527448
Filing Date: 2016-12-27
CPC Classification: B60R,E04F,E06C

Claim Text:
1. A retractable stair system for a vehicle, comprising: a frame, said frame comprising a first side plate and a second side plate, said first and second side plates located at a first frame side and at a second frame side, respectively, and spaced apart by longitudinal structural members, said first side plate and said second side plate each further including (a) first edgewalls defining an annular arc slide guide cutout therein, and (b) second edgewalls defining a recessed latch finger cutout therein; a first keeper plate and a second keeper plate, said first keeper plate and said second keeper plate pivotally affixed to said frame at said first frame side and at second frame side, respectively; a first indexing plate and a second indexing plate, said first indexing plate and said second indexing plate pivotally affixed to said frame at a first frame side and at a second frame side, respectively, and each of said first indexing plate and said second indexing plate further comprising an arcuate upper surface having a plurality of locking notches downwardly recessed therein; and a first latch and a second latch, said first latch and said second latch each having a pivot neck, and pivotally affixed at said pivot neck to said frame at said first frame side and at said second frame side, respectively, and each of said first latch and said second latch further comprising a downwardly extending latch tongue sized and shaped for interfitting locking engagement with said locking notches in said first indexing plate and said second indexing plate, respectively.