US 12,337,995 B2
Support pin assembly, support system, and method for the same
Brent A. Beach, Chesterfield, MO (US); Colleen A. Oberlee, Saint Charles, MO (US); Timothy L. Smith, Brighton, IL (US); and Michael A. Ward, University City, MO (US)
Assigned to The Boeing Company, Arlington, VA (US)
Filed by The Boeing Company, Arlington, VA (US)
Filed on Aug. 8, 2023, as Appl. No. 18/446,270.
Prior Publication US 2025/0051036 A1, Feb. 13, 2025
Int. Cl. B64F 5/10 (2017.01); B23Q 3/18 (2006.01); B25B 11/02 (2006.01); B25B 27/00 (2006.01)
CPC B64F 5/10 (2017.01) [B23Q 3/186 (2013.01); B25B 11/02 (2013.01); B25B 27/00 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A support pin assembly for full size determinant assembly of an aircraft structure, the support pin assembly comprising:
a block having a vertical bore and a horizontal bore intersecting the vertical bore;
a bushing disposed within the horizontal bore at a first end of the block;
a barrel nut having a cylindrical body disposed within the vertical bore, the cylindrical body having a barrel nut hole extending transversely through the cylindrical body, the barrel nut hole aligned with the horizontal bore; and
a pin comprising:
an insertion portion disposed within the bushing;
an interface element having an interface element first end disposed within the insertion portion and an interface element second end disposed within the barrel nut hole; and
an extending portion extending from the first end of the block, the extending portion having at least one protruding circumferential portion formed on an exterior of the extending portion, the at least one protruding circumferential portion having two or more flat surface portions on opposing sides of the at least one protruding circumferential portion to enable rotation of the pin,
wherein the at least one protruding circumferential portion on the extending portion of the pin is configured to be positioned within a hole in a frame section of the aircraft structure for the full size determinant assembly, the frame section is configured to be positioned on and is configured to be supported by an assembly jig, and the support pin assembly is configured for coupling to the assembly jig, and the at least one protruding circumferential portion on the extending portion of the pin is configured to provide nominal adjustment of the pin relative to the hole, so that with any occurrence of a binding condition of the pin within the hole, the pin is configured to be released from the binding condition by rotating the pin via the two or more flat surface portions.