US 12,466,509 B2
Front wheel steering mechanism in center hub steering
Takeshi Murao, Kawasaki (JP)
Appl. No. 17/754,470
Filed by MURAO DESIGN WORKS LLC, Kawasaki (JP)
PCT Filed Oct. 4, 2019, PCT No. PCT/JP2019/039302
§ 371(c)(1), (2) Date Jan. 20, 2023,
PCT Pub. No. WO2021/064983, PCT Pub. Date Apr. 8, 2021.
Prior Publication US 2023/0192226 A1, Jun. 22, 2023
Int. Cl. B62K 21/00 (2006.01); B60B 1/02 (2006.01); B60B 27/00 (2006.01); B60B 27/02 (2006.01)
CPC B62K 21/005 (2013.01) [B60B 1/02 (2013.01); B60B 27/0047 (2013.01); B60B 27/02 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A front wheel steering mechanism in a center hub steering system, the mechanism comprising an inner wheel hub, an outer wheel hub, paired rolling bearings positioned between these inner and outer wheel hubs, a front shaft, a hub steering bracket attached to outside of the front shaft, and a hub steering shaft, wherein
the inner wheel hub is provided with a first hub-steering-shaft hole for having the hub steering shaft inserted thereinto, at rear of the front shaft and at a position a predetermined distance away from the front shaft,
the hub steering bracket is provided also with a second hub-steering-shaft hole for having the hub steering shaft inserted thereinto,
the hub steering shaft penetrates through the first and the second hub-steering-shaft holes,
the inner wheel hub is attached to the hub steering bracket so as to freely rotate about the hub steering shaft as an axial center, and
the outer wheel hub is configured of a left outer wheel hub and a right outer wheel hub separable to left and right along a rotation axis direction, and these left outer wheel hub and right outer wheel hub are rigidly coupled.