Multi-Profile Screwdriver Head for Damage-Free Plug Tightening
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Solution Overview
Problem
Existing screwdriver devices are limited in their ability to efficiently tighten plugs with different threads and head configurations, requiring multiple tools and torque settings, which slows down assembly processes and can cause damage to plugs due to mismatched coupling surfaces.
Innovation Solution
A screwdriver device with a head and shank featuring non-coincident profiles in its cavities, allowing it to accommodate plugs with various thread types and tool sizes, enabling the use of a single tool for different threads and tools, and providing a universal torque setting by averaging resistance across thread sizes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Force
If standard maneuvering tools are used for tightening plastic plugs, then the tools can apply sufficient tightening torque, but the circumferential play between the tool and coupling surfaces causes damage to the plug head
Solution Approach 1:
The screwdriver device is segmented into multiple functional portions: a head portion with a cavity for receiving the plug head, a shank portion with a cavity for receiving the maneuvering tool, and coupling surfaces positioned at specific locations. This segmentation allows each portion to be optimized independently for its specific function while working together as a unified system.
Solution Approach 2:
The screwdriver device acts as an intermediary between the standard steel maneuvering tool and the plastic plug head. It receives the high-torque input from the steel tool through its shank cavity and coupling surfaces, then transmits this torque through its optimized geometry to tighten the plug without the circumferential play that would otherwise damage the plug head.
2Reliability
If multiple screwdriver devices are used for different plug configurations, then each plug type can be tightened correctly, but the device complexity and number of tools increase
Solution Approach 1:
The screwdriver device is designed with universal cavities and coupling surfaces that can accommodate multiple plug types and configurations. The head cavity and shank cavity are dimensioned and shaped to work with various plug head geometries, allowing a single device to perform the tightening function for different plug types without requiring multiple specialized tools.
Solution Approach 2:
The screwdriver device incorporates dynamic adaptability through its cavity designs that can accommodate varying plug configurations. The coupling surfaces and cavity geometries are designed to dynamically adjust to different plug types, maintaining proper engagement and torque transmission across multiple applications.
3Adaptability or versatility
If standard tools are used for different thread sizes, then the same tool can be used, but the circumferential play varies and can cause damage
Solution Approach 1:
The screwdriver device features locally optimized coupling surfaces and cavity geometries at specific positions along its structure. The head cavity and shank cavity are designed with specific dimensional characteristics that locally adapt to different plug and tool configurations, ensuring proper fit and minimizing circumferential play for each specific application.
Data Source
AI summary
A screwdriver device for a threaded plug includes a structure which extends along an axis and includes a head and a shank connected to a first end of the head, wherein the head has a second end which opens onto a cavity suitable for containing a head of a plug, wherein along the axis the cavity includes at least a first portion having a lateral surface which has a first profile and at least a second portion having a lateral surface which has a second profile which is not coincident with the first profile.