US 11,702,875 B2
Bifold door with spherical bearing and pin
Jordan R. Brunner, Seattle, WA (US); Nicholas J. Lewis, Mukilteo, WA (US); and Erik Nilsen, Seattle, WA (US)
Assigned to THE BOEING COMPANY, Arlington, VA (US)
Filed by The Boeing Company, Chicago, IL (US)
Filed on Apr. 28, 2020, as Appl. No. 16/860,918.
Prior Publication US 2021/0332627 A1, Oct. 28, 2021
Int. Cl. E05D 15/26 (2006.01); E06B 3/48 (2006.01); B60J 5/06 (2006.01); E05D 5/12 (2006.01); E05D 3/02 (2006.01); B64C 1/14 (2006.01)
CPC E05D 15/264 (2013.01) [B64C 1/1461 (2013.01); E05D 3/02 (2013.01); E05D 5/12 (2013.01); E06B 3/481 (2013.01); B60J 5/062 (2013.01); E05Y 2900/502 (2013.01)] 24 Claims
OG exemplary drawing
 
1. A bifold door, comprising:
a first hinge and a second hinge configured to rotatably couple the bifold door to a doorframe; and
a slider configured to slide within a track of the doorframe as the bifold door is opened and closed, wherein
at least one of the first hinge, the second hinge, and the slider includes a spherical bearing and a first pin, the spherical bearing being configured to allow the first pin to tilt axially, and
at least one of the first hinge, the second hinge, and the slider includes a second pin and a cylindrical, tapered, or thrust bearing that is configured to fix an axis of rotation of the second pin and inhibit movement of the second pin in an axial direction.