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公开(公告)号:US11173743B2
公开(公告)日:2021-11-16
申请号:US16360808
申请日:2019-03-21
发明人: Diego Raúl Ramirez , Juan Rosales , Francisco Vargas , Jaime Sanchez Mendoza , Thananphat Siprajan
摘要: A wheel assembly includes a wheel having a surface and defining a plurality of slots and a cap having a cap surface. The cap includes a plurality of positioning posts extending from the cap surface, each positioning post including a pillar and a stop fixed to the pillar. The pillar extends farther from the cap surface than the stop. The stop has a distal end. Each pillar is received by one of the slots of the wheel and the distal end of each stop is engaged with the surface of the wheel.