Anti-rotational Standoff Protrusions Prevent Rotation
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Solution Overview
Problem
Traditional threaded standoff assemblies often rotate during assembly or disassembly when access to the standoff or fasteners is limited, leading to improper tightening due to the lack of an anti-rotational mechanism.
Innovation Solution
A standoff assembly with an anti-rotational structure, featuring protrusions on one end that fit into a correspondingly shaped opening in a component, preventing rotation and ensuring secure fastening without the need for tools, using machine screw fasteners and threaded openings at each end.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional threaded standoff assemblies are used without anti-rotational structure, then the assembly process is simple and the structure is compact, but the standoff rotates during assembly or disassembly when access is limited, leading to improper tightening
Solution Approach 1:
The standoff is segmented into functional zones: the anti-rotational protrusions at one end provide rotation prevention, while the threaded sections at both ends provide fastening. This segmentation allows each part to perform its specific function effectively without interfering with other functions.
Solution Approach 2:
The anti-rotational structure uses asymmetric protrusions that extend from the cylindrical body at specific angles. These protrusions are designed to fit into corresponding recesses in the component, creating an asymmetric engagement that prevents rotation while maintaining a relatively simple overall standoff structure.
2Reliability
If tools are used to immobilize the standoff during assembly, then proper tightening can be achieved, but the assembly process becomes more complex and tool access is required
Solution Approach 1:
The standoff assembly system is self-servicing in terms of anti-rotation. The anti-rotational protrusions automatically engage with the component's recesses during assembly, eliminating the need for external tools to immobilize the standoff. The structure itself provides the anti-rotational function that would otherwise require additional tools or operations.
3Ease of operation
If the standoff is made accessible for tool application, then rotation can be prevented, but the design flexibility and compactness are reduced
Solution Approach 1:
The anti-rotational function is achieved by adding a dimensional feature (protrusions extending radially from the cylindrical body) rather than requiring access to the entire standoff length. This allows the anti-rotational mechanism to function at a specific location along the standoff, providing design flexibility for applications where access is limited to certain areas.
Data Source
AI summary
A standoff assembly for separating a first component from a second component from one another a predetermined distance includes a standoff having a predetermined length defined between a first end and a second end, and an anti-rotational structure formed at the first end. The anti-rotational structure is configured to be inserted into a corresponding opening formed in the first component. The standoff assembly further includes a first fastener to secure the first component to the first end of the standoff and a second fastener to secure the second component to the second end of the standoff. A method for separating a first component from a second component is further disclosed.