Rotary Tool With Pivotable Arms For Simultaneous Fastener Driving
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Solution Overview
Problem
Electrical connectors secured to circuit boards with mechanical fasteners often face difficulties due to tight-fitting openings, leading to binding issues that can cause fasteners to strip or the connector body to crack, requiring tedious and time-consuming adjustments to avoid damage.
Innovation Solution
A rotary tool system with pivotally coupled arms and rotatable drivers that can accommodate variable distances and misalignments, allowing simultaneous torque application to multiple fasteners through a drive train, enabling efficient and precise engagement without binding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If technicians use hand tools or power tools to drive fasteners through tight-fitting openings, then the fasteners can be secured to the circuit board, but the fasteners may bind within the openings causing stripping or cracking of the connector body
Solution Approach 1:
The tool divides the fastener driving operation into multiple independent driving positions (first driving position, second driving position, third driving position) that can simultaneously engage multiple fasteners. This segmentation allows each fastener to be driven independently through its own opening without interfering with others, eliminating the binding problem while maintaining connection reliability
Solution Approach 2:
The tool merges multiple fastener driving operations into a single unified tool body that can simultaneously drive multiple fasteners through multiple openings. By combining these operations, the tool ensures synchronized advancement of all fasteners, preventing any single fastener from binding or over-advancing, thus resolving the contradiction between connection reliability and installation ease
2Productivity
If multiple fasteners are driven simultaneously through tight-fitting openings, then installation speed is improved, but the risk of binding and damage increases
Solution Approach 1:
The tool incorporates adjustable arm mechanisms (first arm, second arm, third arm) that can be dynamically positioned to accommodate variable distances between fasteners. This dynamic adjustability allows the tool to adapt to different connector configurations while maintaining proper engagement with each fastener, enabling simultaneous driving without binding or damage, thus resolving the contradiction between installation speed and fastener integrity
3Device complexity
If the distance between fasteners is fixed, then the tool structure is simplified, but the tool cannot accommodate variable distances between fasteners
Solution Approach 1:
The tool uses pivotally coupled arms with adjustable lengths and positions that can dynamically adapt to variable distances between fasteners. The first arm, second arm, and third arm can be independently positioned to match different fastener spacings, providing versatility without requiring multiple specialized tools, thus resolving the contradiction between device complexity and adaptability
Solution Approach 2:
The tool is designed as a universal multi-functional device that can accommodate various fastener configurations through its adjustable arm mechanisms. Rather than creating separate tools for different distance requirements, this single tool can adapt to multiple scenarios, reducing overall device complexity while maintaining high adaptability to different connector designs
Data Source
AI summary
A rotary tool is disclosed. The rotary tool can include a first arm and a second arm pivotally coupled to one another at a joint. Ends of the first and second arms are positionable at a variable distance from one another by pivoting the first and second arms at the joint. The rotary tool can also include a first rotatable driver disposed at the end of the first arm, a second rotatable driver disposed at the end of the second arm, and a third rotatable driver disposed at the joint. In addition, the rotary tool can include a drive train operably coupled to the first, second, and third rotatable drivers to transfer torque, such that an input torque applied to one of the first, second, and third rotatable drivers causes torque output at the other rotatable drivers.