Textured Alignment Cam for Suspension Slip Resistance
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Solution Overview
Problem
Conventional adjusting cams in vehicle suspensions are prone to slipping within slotted holes during vehicle usage, particularly under harsh conditions like off-road driving, leading to misalignment of suspension components.
Innovation Solution
A locking cam with a non-planar, textured surface that grips the vehicle frame member to securely lock the alignment bolt in place, utilizing a metallic alloy with a Rockwell Hardness greater than 30 HRC and a non-circular bolt hole configuration, along with an arcuate slot and serrated engagement surface to maintain alignment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional adjusting cam is used to secure the alignment bolt, then the suspension component can be adjusted to the desired position, but the cam is prone to slipping within the slotted holes under harsh driving conditions, causing the suspension to move from the desired position
Solution Approach 1:
The cam surface is given a non-planar configuration with localized features (protrusions and/or recesses) that engage with corresponding features in the slotted hole. This creates localized high-friction contact zones that prevent slippage while keeping the rest of the cam structure simple and maintainable.
Solution Approach 2:
The cam surface incorporates curved or non-planar geometries (such as arcuate protrusions or recesses) that provide mechanical interlocking with the slotted hole. The curved surfaces increase contact area and friction, preventing the cam from slipping out of the slot during harsh driving conditions.
2Reliability
If the cam surface is made planar and smooth for ease of manufacture, then manufacturing is simplified, but the cam cannot effectively grip the frame member to prevent slippage
Solution Approach 1:
Instead of making the entire cam surface complex, only specific localized areas (the engagement surfaces) are given non-planar features. The majority of the cam body remains simple and easy to manufacture, while the critical grip areas have the necessary protrusions and/or recesses for preventing slippage.
Solution Approach 2:
The cam surface features asymmetric protrusions and/or recesses that are strategically positioned to maximize grip strength. The asymmetric geometry provides mechanical interlocking that is highly effective at preventing slippage while adding minimal manufacturing complexity compared to a fully symmetric or planar surface.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The locking cam effectively resists slippage and maintains the desired suspension alignment under various driving conditions, ensuring the vehicle remains properly aligned by providing a secure grip on the frame member.
Implementation Method 1
a non-planar, textured surface that grips the vehicle frame member to securely lock the alignment bolt in place
Data Source
AI summary
A locking cam for securing suspension components in a vehicle. The locking cam has at least one surface that is textured to create a surface for engagement against and with a frame member upon tightening of the suspension components. The textured surface can have ridges or projects for engagement with the frame member.