US 11,974,090 B1
Headphone ear cushion attachment mechanism and methods for using
Ronald W. Roberts, Jr., Cambridge, MA (US); Patrice Billaudet, Vienna (AT); and Dieter Rapitsch, Wiener Neustadt (AT)
Assigned to Sonos Inc., Santa Barbara, CA (US)
Filed by Sonos, Inc., Santa Barbara, CA (US)
Filed on Dec. 19, 2022, as Appl. No. 18/068,460.
Application 18/068,460 is a continuation of application No. 17/450,431, filed on Oct. 8, 2021, granted, now 11,533,564.
Claims priority of provisional application 63/089,423, filed on Oct. 8, 2020.
Int. Cl. H04R 1/10 (2006.01)
CPC H04R 1/1058 (2013.01) [H04R 1/1008 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A method for securing a headphone ear cushion to a headphone earcup, the method comprising:
orienting an ear cushion proximate to, but not touching, an earcup;
where the ear cushion comprises an attachment ring comprising:
a first elliptical ring having a flat face;
a first notch, a second notch, a third notch, and a fourth notch along the inner edge of the first elliptical ring;
where the earcup comprises an attachment receiving interface comprising:
a second elliptical ring having a flat face;
a first outward-facing hook, a second outward-facing hook, a first tangentially-facing hook, and a second tangentially-facing hook;
aligning the first notch in the attachment ring with the first outward-facing hook on the attachment receiving interface, the second notch with the second outward-facing hook, the third notch with the first tangentially-facing hook, and the fourth notch with the second tangentially-facing hook;
pressing the flat face of the first elliptical ring against the flat face of the second elliptical ring such that the first outward-facing hook pass through the first notch, the second outward-facing hook passes through the second notch, the first tangentially-facing hook passes through the third notch, and the second tangentially-facing hook passes through the fourth notch; and
rotating the first elliptical ring relative to the second elliptical ring in a direction such that each of the hooks of the attachment receiving interface engage with a flat portion of the attachment ring.