Rotating Sleeve for Pneumatic Tool Operator Fatigue
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Solution Overview
Problem
Pneumatic tools, such as air hammers and guns, require frequent adjustments and rotations during use, leading to operator fatigue and increased time due to repetitive movements, which is inefficient and potentially hazardous.
Innovation Solution
A rotatable cylindrical or tapered sleeve secured to the barrel of the air tool using a retaining ring, providing controlled rotational resistance to facilitate easy handling and prevent sudden movements.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the pneumatic tool is frequently adjusted and rotated during use, then the tool can be positioned in preferred orientations, but operator fatigue increases and time consumption increases
Solution Approach 1:
A rotatable sleeve is introduced as an intermediary component between the operator's hand and the pneumatic tool barrel. The sleeve rotates independently within a retaining ring, absorbing the rotational movements that would otherwise be transmitted to the operator's support hand, thereby reducing fatigue while maintaining tool positioning flexibility
2Adaptability or versatility
If the pneumatic tool is frequently adjusted and rotated during use, then the tool can be repositioned to different locations, but the time interval for situating and resituating the tool increases
Solution Approach 1:
The rotatable sleeve acts as a mediator that enables smooth, controlled rotational movements of the tool barrel relative to the operator's hand. This reduces the time required to reposition the tool by providing a mechanical interface that facilitates effortless rotation and orientation changes
3Reliability
If the sleeve is secured tightly to the barrel, then rotational resistance is high, but the sleeve cannot rotate freely to reduce fatigue
Solution Approach 1:
The retaining ring is designed with a dynamic characteristic that allows controlled rotation of the sleeve rather than complete freedom or complete fixation. The sleeve can rotate smoothly within the retaining ring to reduce operator fatigue, while the retaining ring provides sufficient rotational resistance to maintain tool control and reliability during operation
Data Source
AI summary
An air tool comprising a barrel; a main body portion from which the barrel extends; a sleeve secured to an exterior of the barrel, the sleeve connected to the barrel by a retaining ring wherein the sleeve provides for a gripping location by an operator and wherein the retaining ring facilitates rotation of the sleeve relative to the barrel when the tool is operation.