Barbell Sleeve Assembly with Split Ring Connection
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Solution Overview
Problem
Existing barbell sleeve assemblies require over-insertion of the bar through the sleeve, which can be hindered by structural features such as additional components or non-linear bar designs.
Innovation Solution
A barbell sleeve assembly with a connection assembly that includes a split ring, washers, and an annular member, which allows for secure connection of the sleeve to the bar without the need for over-insertion, utilizing recessed slots and annular abutment surfaces for axial and radial fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional over-insertion method is used to connect sleeve to bar, then secure connection is achieved, but assembly is disrupted by additional components or non-linear bar designs
Solution Approach 1:
The connection assembly is divided into multiple functional components: a split ring for radial engagement, washers for axial positioning, and an annular member for retention. This segmentation allows each component to perform its specific function independently, enabling secure connection without requiring over-insertion of the bar through the sleeve.
Solution Approach 2:
The connection assembly acts as an intermediary mechanism between the bar and sleeve. Instead of directly over-inserting the bar through the sleeve, the connection assembly mediates the connection through radial and axial engagement features, accommodating various bar designs including curved bars and bars with additional components.
2Ease of manufacture
If over-insertion is required for connection, then retaining components can be installed, but assembly complexity and difficulty increase
Solution Approach 1:
The connection assembly is divided into multiple functional components: a split ring for radial engagement, washers for axial positioning, and an annular member for retention. This segmentation allows each component to perform its specific function independently, enabling secure connection without requiring over-insertion of the bar through the sleeve.
Solution Approach 2:
The bar end portion is pre-formed with a projection featuring a recessed slot that receives the split ring. This preliminary preparation of the bar geometry enables the connection assembly to be installed without requiring over-insertion, simplifying the assembly process while maintaining structural integrity.
Data Source
AI summary
An assembly includes a bar having a sleeve assembly connected to an end portion. The end portion has a first outer diameter, a shoulder section having a smaller diameter than the first outer diameter, a neck section having a smaller outer diameter than the shoulder section, and a head section having a larger outer diameter than the neck section, such that the neck section forms a recessed slot. The sleeve assembly includes a sleeve having a connection assembly for connecting the sleeve to the end portion, which includes a split ring having semi-annular pieces received within the recessed slot and around the neck section, a proximal washer positioned axially inward from the split ring, around the shoulder section, a distal washer positioned axially outward from the split ring, around the head section, and an annular member extending circumferentially around the split ring to retain the semi-annular pieces within the slot.