Elastomeric Protective Tool Cover for Soft Material Handling
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Solution Overview
Problem
Hand tools with metal jaws often damage soft materials like aluminum, brass, wood, or plastic, and finished surfaces due to their hardness, causing permanent damage during use.
Innovation Solution
A protective tool cover made from elastomers like nitrile, EPDM, or rubber is designed to fit over the jaws of hand and power tools, providing a cushioning layer to prevent damage by distributing force and torque, and can be manufactured through molding techniques.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If hand tools with metal jaws are used to generate sufficient force and torque, then the tool strength is improved, but the hardness of the tool jaws causes damage to soft materials and finished surfaces
Solution Approach 1:
A protective cover is introduced as an intermediary component between the metal tool jaw and the soft material or finished surface. The cover is made of compliant material that can deform under load, distributing the contact pressure over a larger area and preventing direct damage to the workpiece while allowing the tool to maintain its structural strength.
Solution Approach 2:
The hardness parameter of the tool jaw interface is changed by adding a protective cover with different material properties. The cover material has lower hardness and higher compliance than the metal jaw, transforming the contact interface from hard-to-soft interaction to soft-to-soft interaction, thereby preventing damage to the workpiece.
2Reliability
If the tool jaws are made harder to withstand force and torque, then the tool durability is improved, but the pressure exerted on soft materials causes permanent damage
Solution Approach 1:
The protective cover serves as a mediator that allows the hard tool jaw to maintain its durability while preventing direct contact with soft materials. The cover absorbs the impact and distributes pressure, enabling the tool to be both durable and safe for use on delicate surfaces.
Solution Approach 2:
The protective cover is placed on the tool jaw before contact with the soft material or finished surface. This pre-positioned cushioning layer absorbs the impact energy and distributes the pressure over a larger area, preventing permanent damage before it can occur.
3Force
If metal tool jaws are used to grip and apply force to materials, then the gripping capability is improved, but the direct contact causes marking and deformation of finished surfaces
Solution Approach 1:
The protective cover acts as an intermediary between the gripping jaw and the finished surface. It maintains the necessary gripping force while its compliant material prevents direct pressure points from marking or deforming the surface, allowing force transmission without damage.
Solution Approach 2:
The protective cover is made from a flexible or compliant material that can deform under pressure. This flexibility allows the cover to conform to the surface geometry and distribute contact forces evenly, preventing localized marking and deformation while maintaining gripping capability.
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 protective tool cover effectively prevents damage to soft materials and finished surfaces by reducing the direct contact pressure, allowing for safe use of hand and power tools on various materials without marking or deforming them.
Implementation Method 1
A protective tool cover made from elastomers like nitrile, EPDM, or rubber is designed to fit over the jaws of hand and power tools, providing a cushioning layer to prevent damage by distributing force and torque
Data Source
AI summary
Embodiments of the disclosure describe a protective tool cover and a method of making the protective tool cover. The embodiments comprises a protective tool cover having a proximate and distal end; an internal cavity continuing from the proximate to the distal end, the internal cavity being adapted to receive a jaw portion of a tool in order to enclose the jaw portion of the tool with the cover; and a portion of the cover connecting the proximate and distal end, positioned to interact with the jaw portion of the jaw of the tool.