Automated Retractable Running Board Pivot Mechanism
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Solution Overview
Problem
Existing retractable running boards for motor vehicles do not efficiently transition between stowed and deployed positions, lacking a reliable mechanism for tilting the step to accommodate varying ground clearances effectively.
Innovation Solution
A running board assembly featuring a pivot assembly, an arm, and a linear mechanism within an actuator housing that allows the step to pivot and move linearly, utilizing an actuator housing, an arm, and a pivot assembly with bumpers to tilt the step between an upwardly tilted orientation and a level position with the ground.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a retractable running board is used for high ground clearance vehicles, then user access is enabled, but the mechanism for tilting the step to accommodate varying ground clearances is unreliable
Solution Approach 1:
The running board step is designed with dynamic tilting capability, allowing it to pivot between a horizontal position (when deployed) and a vertical position (when retracted). The pivot assembly enables the step to tilt at an intermediate angle during transition, adapting to varying ground clearances while maintaining reliable operation through controlled mechanical movement.
Solution Approach 2:
The running board mechanism is segmented into distinct functional components: the step, the pivot assembly, and the actuator system. This segmentation allows the step to independently tilt relative to the vehicle body while the actuator controls the retraction and deployment, improving overall reliability by isolating functions and reducing interference between components.
2Ease of operation
If the step is moved between stowed and deployed positions, then user access is facilitated, but control and safety during transition may be compromised
Solution Approach 1:
The actuator system incorporates feedback mechanisms that monitor the position and movement of the step during transition. This feedback enables the control system to detect when the step reaches its deployed or retracted position, ensuring controlled and safe operation while facilitating easy user access.
Solution Approach 2:
The running board mechanism is designed to automatically control its own transition between stowed and deployed positions through the actuator system. The self-service capability ensures controlled movement without requiring manual intervention, improving safety while maintaining ease of operation for user access.
Data Source
AI summary
A running board assembly is provided for a motor vehicle. The running board assembly includes an actuator housing fixedly mounted to the motor vehicle. An arm is slidable relative to the actuator housing in opposing inboard and outboard directions for movement into and out of the actuator housing. A linear mechanism is disposed within the actuator housing and is spaced apart from the arm. The linear mechanism is also operably connected to the arm to provide linear movement of the arm in the inboard and outboard directions. A step is pivotal relative to the arm and movable in the opposing inboard and outboard directions therewith for movement between a stowed position and a deployed position.