Steering Linkage Stop Feature Prevents Component Separation
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Solution Overview
Problem
Existing vehicle steering linkages lack a mechanism to prevent complete separation of components under load disruption, leading to potential loss of steering control during accidents or harsh road conditions.
Innovation Solution
A steering linkage design featuring a stop feature and mechanical connections such as swaging, staking, soldering, or pinning, where the second member remains partially within the first member to maintain coupling, even if the primary connection is disrupted, utilizing a stepped body configuration and grooves to secure the components together.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a mechanical connection is used to secure the first member and second member together, then the steering linkage achieves strong operational coupling, but the components may completely separate under load disruption causing loss of steering control
Solution Approach 1:
The stop feature is designed as a preventive measure before complete separation can occur. The enlarged portion of the second member is positioned to engage the inner surface of the first member's reduced diameter end, creating a mechanical stop that prevents total separation. This beforehand cushioning ensures that even if the primary mechanical connection fails under load disruption, the components remain partially coupled, maintaining steering control.
2Ease of operation
If the second member is completely inserted within the first member for secure coupling, then the operational connection is strong, but the components may separate entirely when the connection is disrupted
Solution Approach 1:
The first member features a localized reduced diameter end section that creates a specific engagement zone for the stop feature. This local quality change in the first member's geometry provides a dedicated region where the enlarged portion of the second member can engage, creating a mechanical stop that prevents complete separation while allowing the rest of the members to maintain their operational coupling configuration.
3Strength
If the connection between first member and second member is designed to be strong, then steering control is maintained, but complete separation may occur under extreme load causing safety issues
Solution Approach 1:
The invention converts the potential harmful effect of connection failure into a beneficial outcome. The stop feature is designed to engage and prevent complete separation, transforming what would be a catastrophic failure mode into a controlled state where the members remain partially coupled. This converts the harm of connection disruption into the benefit of maintained steering control, ensuring safety even under extreme load conditions.
Data Source
AI summary
An improved structure for a steering linkage adapted for use in a vehicle steering system and method for producing the same. According to one embodiment, the steering linkage comprises a first member and a second member disposed at least partially within the first member and operatively secured together by at least a mechanical type of connection. The second member includes a stop feature provided therein which is configured such that in the event the point of connection between the first member and the second member is disrupted, the stop feature is operative to prevent the first member and the second member from completely separating from each other so that at least a portion of the second member remains within the first member so as to operatively couple the first and second members together.