US 12,220,942 B2
Hub-integrated-type constant-velocity joint device
Chang Hee Jeong, Yongin-si Gyeonggi-do (KR)
Assigned to HYUNDAI WIA CORPORATION, Gyeongsangnam-do (KR)
Appl. No. 17/627,570
Filed by HYUNDAI WIA CORPORATION, Gyeongsangnam-do (KR)
PCT Filed Jul. 14, 2020, PCT No. PCT/KR2020/009270
§ 371(c)(1), (2) Date Jan. 14, 2022,
PCT Pub. No. WO2021/010733, PCT Pub. Date Jan. 21, 2021.
Claims priority of application No. 10-2019-0085284 (KR), filed on Jul. 15, 2019.
Prior Publication US 2022/0258530 A1, Aug. 18, 2022
Int. Cl. B60B 27/00 (2006.01); F16D 3/84 (2006.01)
CPC B60B 27/0042 (2013.01) [B60B 27/0005 (2013.01); B60B 27/0047 (2013.01); F16D 3/845 (2013.01); F16D 2300/06 (2013.01); F16D 2300/08 (2013.01); F16D 2300/18 (2013.01); Y10S 464/906 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A hub-integrated-type constant-velocity joint device comprising a hub part in which an inner race of a constant joint and a ball joint are inserted, a housing part extending to an outside of a vehicle from the hub part, and a hub housing having an integrally formed flange part radially extending from an end of the housing part to couple a disc of a wheel,
wherein a bearing including bearing balls composed of outer balls and inner balls, an inner race supporting inner sides of the inner balls, and outer race covering outer sides of both the outer balls and the inner balls and coupled to a knuckle; and
a second end, which faces the outside of the vehicle, of a boot coupled to surround the hub part and a driveshaft is inserted in a gap between the inner race and the outer race of the bearing, configured as an inner seal closing up the gap between the inner race and the outer race;
a boot sealing portion is integrally formed at the second end of the boot which faces the outside of the vehicle;
the boot sealing portion is inserted in the gap between the inner race and the outer race;
a lateral protrusion that protrudes in the same direction as the boot sealing portion is formed at the second end of the boot, which is connected with the boot sealing portion, and is in contact with the side of the outer race, thereby maintaining sealing;
a concave seat is formed on the outer surface of the inner race on the same line as the lateral protrusion; and
the second end of the boot that is connected with the boot sealing portion is inserted in the seat, thereby maintaining sealing.