Patent ID: 11945405
Assignee: WINBO-DONGJIAN AUTOMOTIVE TECHNOLOGY CO., LTD.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 22:
23. An extendable and retractable vehicle step comprising:
a footboard;
a first assembly comprising:
a first 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 first 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 the footboard; and
a first 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 first sleeve comprises at least one first 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;

a second assembly comprising:
a second mounting body;
a third support arm comprising a first end and a second end, wherein the first end of the third support arm is pivotably coupled to the second mounting body;
a fourth support arm comprising a first end and a second end, wherein the first end of the fourth support arm is pivotably coupled to the second end of the third support arm and wherein the second end of the fourth support arm comprises a mounting portion for the footboard; and
a second sleeve through which at least a portion of the fourth support arm is configured to pass in the first direction during the extension operation and in the second direction during the retraction operation, wherein the second sleeve comprises at least one second roller that is configured to:
rotate clockwise, based on movement of the fourth support arm in the first direction; and
rotate counterclockwise, based on movement of the fourth support arm in the second direction;

a motor coupled to at least one of the first assembly or the second assembly; and
a rod coupled to the motor and configured to simultaneously rotate the first support arm and the third support arm during the extension operation and during the retraction operation.