US 12,078,261 B2
Compliant joint drive assembly
Lukasz Turek, Wroclaw (PL); and Modest Adam Reszewicz, Wroclaw (PL)
Assigned to GOODRICH CORPORATION, Charlotte, NC (US)
Filed by Goodrich Corporation, Charlotte, NC (US)
Filed on Jan. 27, 2022, as Appl. No. 17/586,074.
Claims priority of application No. 21461514 (EP), filed on Feb. 15, 2021.
Prior Publication US 2022/0260173 A1, Aug. 18, 2022
Int. Cl. F16K 31/04 (2006.01); B64D 47/00 (2006.01); F16D 3/24 (2006.01); F16K 5/06 (2006.01)
CPC F16K 31/047 (2013.01) [B64D 47/00 (2013.01); F16D 3/24 (2013.01); F16K 5/0647 (2013.01); F16K 31/041 (2013.01); F16D 2250/0084 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A ball shaft assembly comprising:
a ball shaft;
a cam shaft, wherein the ball shaft is a driven shaft and the can shaft is a drive shaft;
a motor arranged to drive the ball shaft via the cam shaft; and
a dielectric insulating insert assembly arranged to be positioned between the drive shaft and the driven shaft, the insert assembly comprising:
a plurality of elongate pins of dielectric material located between the drive shaft and the driven shaft and configured to engage, respectively, with the drive shaft and the driven shaft in torque transfer engagement, wherein the pins provide a dielectric barrier between the drive shaft and the driven shaft;
mating interfaces at the drive shaft and the driven shaft shaped to engage with the pins in torque transfer engagement, the mating interfaces comprising:
a protrusion shaped to correspond to the shape of the pins provided at one of the drive shaft or the driven shaft and a recess shaped to correspond to receive the pins and the protrusion provided at the other of the drive shaft and the driven shaft, wherein the recess defines inner recess portions configured to receive the pins and the protrusion is configured to tightly fit within the recess when the pins are received therein, the protrusion defining outer recess portions sized to receive the pins;
wherein the pins are sized to engage with the drive shaft and the driven shaft such that an air gap is formed between the drive and the driven shaft when the shafts and the pins are assembled together.