Air Powered Nut Runner with Radial Drive Arms

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Solution Overview

Problem

Existing nut driving tools are inefficient in rapidly rotating a nut along a threaded rod or shaft, as they rely on manual engagement and sequential rotation, lacking a method to utilize a directed airstream for rapid advancement.

Innovation Solution

An air-driven tool with multiple spaced drive surfaces on the outside of a threaded nut, utilizing a locking mechanism and a compressed airstream to rotate the nut along a threaded rod, enabling rapid advancement.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If manual engagement and sequential rotation methods are used, then the nut can be engaged and rotated, but the speed of nut advancement is slow

Engineering Contradiction:

Improvespeed of nut advancementVSAvoidproductivity of nut engagement

Core Design Contradiction:

SpeedVSProductivity

Solution Approach 1:

The patent applies pneumatic principles by using a directed airstream from a compressed air source to impinge upon the drive surfaces of the nut runner, generating rotational force that rapidly rotates the nut along the threaded rod, eliminating the need for manual sequential rotation

Inventive Principle:

Principle #29Pneumatics and hydraulics

Solution Approach 2:

The patent replaces manual mechanical operation with an air-powered system where a compressed airstream directly drives the nut runner's drive surfaces, substituting human manual rotation with pneumatic force for rapid nut advancement

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Speed

If a directed airstream is used to rotate the nut, then rapid rotation is achieved, but the device complexity increases

Engineering Contradiction:

Improverotation speed of nutVSAvoidcomplexity of air-driven mechanism

Core Design Contradiction:

SpeedVSDevice complexity

Solution Approach 1:

The patent introduces an intermediary air-driven nut runner tool that mediates between the compressed air source and the nut, where the nut runner's drive surfaces act as the intermediary element that converts pneumatic force into rotational motion for nut advancement

Inventive Principle:

Principle #24Intermediary (Mediator)

Solution Approach 2:

The patent employs a pneumatic system where a compressed air source delivers a directed airstream through a nozzle to impinge upon the drive surfaces, using pneumatic pressure and flow to generate the rotational force needed for rapid nut rotation

Inventive Principle:

Principle #29Pneumatics and hydraulics

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

Enables rapid and efficient rotation of nuts along threaded rods using a directed airstream, improving the speed and efficiency of nut advancement compared to traditional manual methods.

Implementation Method 1

A directed energy stream of air can be applied to the arms 12 which will thereby spin the nut runner 10 rotating about the rod 20

Methodology Applied

Scientific EffectFluid flow and pressure: Pressure Gradient

Data Source

PatentUS8789445B1Air powered nut runner

Publication Date: 2014.07.29 HEXELORATOR

AI summary

An air driven nut rotation device to rapidly advance a nut along a threaded rod. An apertured engagement disk is registerable about a nut threadably positioned on a rod. A plurality of radially positioned drive arms extend from said disk providing multiple spaced air impingement surfaces which when driven by a stream of air rapidly rotate the disk and nut engaged thereby advancing it along the threaded shaft in selected directional rotation depending on airstream directional engagement.