US 11,807,189 B2
Quick disconnect for detachable stair system
Jack Kay, Kent, WA (US); and Chad A Winslow, Kent, WA (US)
Assigned to TORK LIFT INTERNATIONAL, INC., Kent, WA (US)
Filed by TORK LIFT INTERNATIONAL, INC., Kent, WA (US)
Filed on Mar. 31, 2022, as Appl. No. 17/710,560.
Application 17/710,560 is a division of application No. 16/878,435, filed on May 19, 2020, granted, now 11,292,391.
Claims priority of provisional application 62/910,628, filed on Oct. 4, 2019.
Claims priority of provisional application 62/850,531, filed on May 20, 2019.
Prior Publication US 2022/0219613 A1, Jul. 14, 2022
Int. Cl. B60R 3/02 (2006.01); B60R 3/00 (2006.01)
CPC B60R 3/02 (2013.01) [B60R 3/007 (2013.01)] 11 Claims
OG exemplary drawing
 
1. A detachable stair system for a vehicle, comprising:
a sill cover plate, the sill cover plate comprising a right end and a left end;
a right end open jaw bracket and a left end open jaw bracket, the right end open jaw bracket affixed to the right end of the sill cover plate, and the left end open jaw bracket affixed to the left end of said sill cover plate;
a left mounting bracket and a right mounting bracket, and wherein the left and right mounting brackets further comprise a left pivot stud and a right pivot stud, respectively;
a detachable stair portion, the detachable stair portion operably affixed to the sill cover plate and configured for extension and pivotable movement between an open, deployed position and a compressed, stowed position;
wherein the right end open jaw bracket and the left end open jaw bracket are sized and shaped for engagement with and pivoting movement about said left pivot stud and said right pivot stud, respectively; and
an extensible-retractable scissors stair assembly, said extensible-retractable scissors stair assembly comprising a first scissors assembly and a second scissors assembly.