Forearm Shield with Elastic Strap for Egg Collection
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Solution Overview
Problem
Existing solutions for protecting the arm while collecting eggs from a hen's nest box, such as gauntlet-style gloves, compromise hand sensitivity and dexterity, leading to potential egg breakage and are often unavailable in children's sizes.
Innovation Solution
A lightweight, adjustable arm shield made from a thin plastic sheet with a curvature and elastic strap, designed to fit over the forearm, providing protection without hindering egg handling, and potentially made from repurposed plastic bottles with adhesive tape for edge protection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If a gauntlet-style glove is worn to protect the arm, then protection from pecks is improved, but hand sensitivity and dexterity deteriorate
Solution Approach 1:
The protective device is divided into two separate components: an arm shield for protection and a fingerless glove for dexterity. This segmentation allows each component to fulfill its specific function without compromising the other, resolving the contradiction between protection and hand sensitivity.
Solution Approach 2:
Protection is applied locally only where needed (forearm and arm) rather than covering the entire hand. The arm shield provides peck protection to the vulnerable forearm area while leaving the hand exposed to maintain sensitivity and dexterity for egg handling.
2Object-affected harmful factors
If a gauntlet-style glove is worn to protect the arm, then protection from pecks is improved, but egg handling capability deteriorates
Solution Approach 1:
The device segments protection and manipulation functions into separate components. The arm shield handles protection while the fingerless glove enables egg handling, eliminating the trade-off between protection and productivity.
Solution Approach 2:
Protection is localized to the arm and forearm areas where pecks occur, while the hand remains uncovered to maintain full tactile sensitivity and manipulation capability for efficient egg collection.
3Object-affected harmful factors
If a gauntlet-style glove is worn to protect the arm, then protection from pecks is improved, but availability in children's sizes deteriorates
Solution Approach 1:
The arm shield incorporates an elastic strap that can adjust to different arm circumferences, making the device adaptable to various sizes including children's arms. This dynamic adjustment capability resolves the contradiction between protection and size availability.
Solution Approach 2:
The elastic strap changes its physical parameters (stretchability) to accommodate different arm sizes. This parameter change allows the same device design to fit both adults and children, improving versatility without compromising protection.
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 arm shield effectively protects the forearm from pecks while allowing for sensitive and secure egg collection, maintaining dexterity and being adaptable for various sizes, including children's sizes.
Implementation Method 1
the strap is substantially elastic
Data Source
AI summary
An arm shield constructed from a thin sheet material has a curvature around an elongate axis. Opposite side edges are substantially parallel to the elongate axis. A nose edge extends from the first end. A tail curvature similar to the sheet curvature extends from the second end. An adjustable strap connects the first side edge to the second side edge.