Friction-Coated Screw Nut Assembly for One-Tool Fastening
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Solution Overview
Problem
Existing screw connection arrangements require two tools for assembly, which can be difficult to maneuver in hard-to-reach areas, and there is a need for a secure and reliable connection that can be easily assembled.
Innovation Solution
A screw connection arrangement with a screw and screw nut featuring a tribologically enhanced layer to increase friction between components, using abrasive coatings to facilitate assembly and secure attachment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two tools are used to assemble the screw connection arrangement, then secure and reliable connection is achieved, but assembly difficulty increases in hard-to-reach areas
Solution Approach 1:
The patent combines the functions of two separate tools into a single integrated tool that can simultaneously engage with both the screw head and screw nut. This merging allows the operator to assemble the connection in hard-to-reach areas with one tool, eliminating the need to maneuver two tools independently while maintaining secure connection reliability.
Solution Approach 2:
The patent introduces a specialized assembly tool that acts as an intermediary device between the operator and the screw connection components. This mediator tool is designed with specific engagement features that allow it to interact with both the screw head and screw nut simultaneously, facilitating assembly in constrained spaces where traditional two-tool methods are impractical.
2Ease of operation
If manual holding of tools is used during assembly, then control over the assembly process is maintained, but operator fatigue increases and precision decreases
Solution Approach 1:
The single integrated assembly tool is designed with self-positioning and self-retention features that allow it to automatically engage with the screw components and maintain proper alignment during assembly. The tool's design enables it to service itself by maintaining its own positioning without requiring continuous manual adjustment, thereby reducing operator fatigue and accelerating the assembly process.
3Ease of manufacture
If traditional screw connection assembly is used, then simple assembly procedure is maintained, but assembly time increases in difficult-to-access areas
Solution Approach 1:
The assembly tool incorporates dynamic adjustment mechanisms that allow it to adapt its configuration based on the specific assembly conditions. The tool can dynamically adjust its engagement features and positioning to optimize performance in different hard-to-reach areas, maintaining procedural simplicity while significantly improving assembly speed compared to traditional methods.
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 increased friction allows for easier assembly by reducing the force required to attach the screw nut, ensuring a secure and reliable connection even in challenging environments.
Implementation Method 1
a layer, in particular a coating, which tribologically increases a coefficient of friction between the nut body of the screw nut and a surface which comes into contact with the nut body of the screw nut
Data Source
Figure 1
AI summary
The invention relates to a screw connection arrangement comprising a screw (4) having a screw body with a screw shaft (5) which is provided at least in sections with a thread, in particular an external thread (7). The screw connection arrangement further comprises a screw nut which serves and/or is designed as a counterpart to the screw (4), which nut has a nut body (8) with a thread corresponding to the thread of the screw shaft (5), in particular an internal thread, and which is screwed or can be screwed onto the screw shaft (5).According to the invention, it is provided in particular that the nut body (8) of the screw nut is provided at least partially or in regions with a layer (9), in particular a coating, which tribologically increases a coefficient of friction between the nut body (8) of the screw nut and a surface which comes into contact with the nut body (8) of the screw nut in the assembled state of the screw connection arrangement.