Hammer Head Elastic Lip for Finger Impact Protection
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Solution Overview
Problem
Hammers made of strong and hard materials like steel can be dangerous, particularly for children or those with reduced dexterity, as they can accidentally strike their fingers with the hard striking surface.
Innovation Solution
A hammer safety device with a softer, more elastic lip that extends beyond the striking surface to contact the surface first, reducing the risk of injury by absorbing impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If the hammer striking surface is made of strong and hard material like steel, then the hammer effectiveness for inserting fasteners is improved, but the danger of injury to fingers is increased
Solution Approach 1:
A lip made of softer, more elastic material is added around the striking surface to act as an intermediary between the hard striking surface and the user's fingers. The lip extends beyond the striking surface perimeter and contacts surfaces first during accidental strikes, absorbing impact before it reaches the hard metal face, thereby mediating the harmful effect while preserving the hard surface's effectiveness for its intended function.
Solution Approach 2:
Different parts of the hammer head are given different material properties: the striking surface remains hard metal for effective fastener insertion, while the lip surrounding it is made of softer, more elastic material for safety. This local differentiation of material quality allows each part to perform its specific function optimally without compromising the other.
2Object-affected harmful factors
If a safety lip is added around the striking surface, then the safety against finger injury is improved, but the device complexity is increased
Solution Approach 1:
The safety lip is integrated with the hammer head as a unified structure rather than being a separate attachment. The lip and head form a single component where the lip is molded or formed as part of the hammer head structure, simplifying manufacturing and reducing assembly steps while maintaining the safety function.
Solution Approach 2:
The lip is made of a flexible, elastic material that can deform during impact and return to its original shape. This flexibility allows the lip to absorb impact forces effectively while maintaining a simple structural form that doesn't require complex mechanisms or multiple parts.
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 elastic lip absorbs impact, preventing injury to fingers and enhancing safety by minimizing direct contact with the hard striking surface.
Implementation Method 1
The lip may be made of a material that is softer and more elastic than the striking surface
Data Source
AI summary
The disclosed technology includes a hammer. In one example, the hammer may include a head and a handle coupled to the head. The head may include a striking surface. A lip may surround an outer periphery of the striking surface. The lip may be made of a material that is softer and more elastic than the striking surface. The lip may extend out beyond the striking surface to contact a surface without the striking surface contacting the surface.