US 11,945,405 B2
Extendable and retractable vehicle step
Yongbo Chen, Foshan (CN); Peiquan Lai, Foshan (CN); Yongxin Liang, Foshan (CN); and Jie Yang, Foshan (CN)
Assigned to WINBO-Dongjian Automotive Technology Co., Ltd., Guangdong (CN)
Filed by WINBO-DONGJIAN AUTOMOTIVE TECHNOLOGY CO., LTD., Foshan (CN)
Filed on Jul. 14, 2023, as Appl. No. 18/221,953.
Application 18/221,953 is a continuation in part of application No. 17/889,408, filed on Aug. 17, 2022.
Application 17/889,408 is a continuation in part of application No. PCT/CN2021/133818, filed on Nov. 29, 2021.
Claims priority of application No. 202111351509.7 (CN), filed on Nov. 15, 2021.
Prior Publication US 2023/0356659 A1, Nov. 9, 2023
Int. Cl. B60R 3/02 (2006.01); B60R 3/00 (2006.01)
CPC B60R 3/02 (2013.01) [B60R 3/002 (2013.01)] 28 Claims
OG exemplary drawing
 
1. An extendable and retractable vehicle step assembly comprising:
a mounting body;
a first support arm comprising a first end and a second end, wherein the first end of the first support arm is pivotably coupled to the mounting body;
a second support arm comprising a first end and a second end, wherein the first end of the second support arm is pivotably coupled to the second end of the first support arm, and wherein the second end of the second support arm comprises a mounting portion for a footboard; and
a rotatable sleeve through which at least a portion of the second support arm is configured to pass in a first direction during an extension operation and in a second direction during a retraction operation, wherein the rotatable sleeve comprises at least one roller that is configured to:
rotate clockwise, based on movement of the second support arm in the first direction; and
rotate counterclockwise, based on movement of the second support arm in the second direction.