US 11,752,804 B2
Pneumatic tire with reinforcing part
Joo Bae Park, Daejeon (KR); Il Sik Kim, Daejeon (KR); and Seung Hwan Rhee, Daejeon (KR)
Assigned to HANKOOK TIRE & TECHNOLOGY CO., LTD, Seongnam-si (KR)
Filed by HANKOOK TIRE & TECHNOLOGY CO., LTD, Seongnam-si (KR)
Filed on Jul. 27, 2021, as Appl. No. 17/443,540.
Claims priority of application No. 10-2020-0092982 (KR), filed on Jul. 27, 2020.
Prior Publication US 2022/0024256 A1, Jan. 27, 2022
Int. Cl. B60C 11/03 (2006.01); B60C 9/00 (2006.01)
CPC B60C 11/0306 (2013.01) [B60C 2009/0071 (2013.01); B60C 2011/0341 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A pneumatic tire configured to be mounted on a tire wheel, the pneumatic tire comprising:
a tread having a groove that is formed in a circumferential direction of the tire wheel as being recessed toward a central axis of the pneumatic tire, and a kerf that is formed to intersect the groove as being recessed toward the central axis of the pneumatic tire; and
a reinforcing part configured to be inserted into the groove,
wherein the reinforcing part is bent one or more times and has discontinuous change in cross-sectional area thereof, which inhibits an air column having a uniform cross section from being formed at the tread during rotation of the pneumatic tire and prevents an occurrence of pipe resonance due to the air column,
wherein the reinforcing part has an SS rib, an M rib, an LL rib, an S rib, and an L rib, each extending by a predetermined length in opposite directions from both ends of a right-angled ‘C’ shape, and
wherein the SS rib, the M rib, the LL rib, the S rib, and the L rib are different from each other in size and are connected to each other in series.