Vehicle Joint Assembly Stop Member for Axial Fitting Restraint
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Solution Overview
Problem
Conventional joint assemblies for vehicles allow axial movement of fittings during assembly, which can damage the joint assembly by contacting the boot, leading to potential misalignment and reduced performance.
Innovation Solution
A joint assembly design that includes an outer race, a fitting, a cap, and a stop member, where the fitting is axially movable and rotationally fixed relative to the outer race, and the stop member is removably received by the cap to prevent axial movement of the fitting, ensuring secure assembly and preventing contact with the boot.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the fitting is allowed to move axially during assembly, then the assembly process is simpler and more flexible, but the fitting may contact the boot and cause damage to the joint assembly
Solution Approach 1:
The stop member is installed in the cap before the fitting is assembled into the outer race. This preliminary action prevents the fitting from moving axially and contacting the boot during the subsequent assembly operations, thereby protecting the joint assembly while maintaining assembly flexibility
Solution Approach 2:
The stop member acts as an intermediary element between the cap and the fitting. It mediates the axial movement by providing a physical barrier that stops the fitting before it can contact the boot, thus preventing damage without restricting necessary assembly movements
2Reliability
If the stop member is permanently fixed in the cap, then axial movement prevention is more reliable, but the stop member cannot be removed for disassembly or replacement
Solution Approach 1:
The stop member is designed with dynamic characteristics - it is retained in the cap by a snap-fit mechanism or interference fit that provides reliable axial movement prevention during operation, but allows for intentional removal when disassembly is required. This dynamic design enables the system to switch between a fixed state (during operation) and a removable state (for repair)
Solution Approach 2:
The stop member is designed as a replaceable component that can be discarded (removed) from the cap when necessary for disassembly or replacement, and recovered (reinstalled) to restore the axial movement prevention function. This approach maintains reliability during operation while enabling ease of repair when needed
Data Source
AI summary
A joint assembly for a vehicle includes an outer race, a fitting, a cap and a stop member. The fitting is disposed in the outer race. The fitting is configured to be axially movable and rotationally fixed relative to the outer race. The cap is connected to the outer race. The stop member is removably received by the cap. The stop member substantially prevents axial movement of the fitting in a direction toward the cap.