US 12,227,034 B2
Cable bead, tire using cable bead, cable bead manufacturing method, and cable bead manufacturing device
Shoichi Ohashi, Saitama (JP)
Assigned to Shoichi Ohashi, (JP); and TOWARON TRADING CO., LTD., (JP)
Appl. No. 18/287,277
Filed by Shoichi Ohashi, Saitama (JP); and TOWARON TRADING CO., LTD., Osaka (JP)
PCT Filed Mar. 31, 2022, PCT No. PCT/JP2022/016484
§ 371(c)(1), (2) Date Oct. 17, 2023,
PCT Pub. No. WO2022/224794, PCT Pub. Date Oct. 27, 2022.
Claims priority of application No. 2021-071857 (JP), filed on Apr. 21, 2021.
Prior Publication US 2024/0198733 A1, Jun. 20, 2024
Int. Cl. B60C 15/04 (2006.01); D07B 1/06 (2006.01); D07B 3/02 (2006.01)
CPC B60C 15/04 (2013.01) [D07B 1/0613 (2013.01); D07B 1/066 (2013.01); D07B 1/0666 (2013.01); D07B 3/02 (2013.01); B60C 2015/042 (2013.01); B60C 2015/046 (2013.01); D07B 2201/2009 (2013.01); D07B 2201/201 (2013.01); D07B 2201/2011 (2013.01); D07B 2201/2066 (2013.01); D07B 2205/3053 (2013.01); D07B 2207/4031 (2013.01); D07B 2501/2046 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A cable bead comprising:
an annular core; and
a first side wire spirally wrapped up around the annular core,
wherein the annular core is formed of a round steel wire made to circle once or made, without being stranded, to circle 2 to 10 times side by side,
the round steel wire, which forms the first side wire, continuously extends from the annular core without cutting the round steel wire that forms the annular core, and
the cable bead satisfies 0≤(Do−Di)/Wm≤√3/2, where:
Di (mm) is a cable bead inner radius at an inner side, along a tire width direction, of the cable bead;
Do is a cable bead outer radius at an outer side, along the tire width direction, of the cable bead; and
Wm is a maximum width of a cross section of the cable bead.