Angular Nail Stick Mucilage Connection System
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Solution Overview
Problem
Existing nail designs are inadequate for efficiently and cost-effectively manufacturing collated nails at angles greater than 25°, leading to insufficient fastening effectiveness and increased risk of nail pull-through.
Innovation Solution
The development of a clamp head nail with a T-head design and mucilage connection system, allowing for efficient manufacturing of nail sticks with collation angles between 25° and 75°, which inhibits nail pull-through by utilizing angulated clamping surfaces and a specific manufacturing process involving a gripping tool to form clamp heads on wire bands.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If nails are collated at angles greater than 25° using traditional paper tape joining, then collation angle is increased, but manufacturing efficiency and cost-effectiveness deteriorate
Solution Approach 1:
The patent changes the collation angle parameter from traditional 25° or less to greater than 25° (specifically 34°), and changes the joining material parameter from paper tape to mucilage connection system, enabling both improved adaptability and maintained manufacturing efficiency
Solution Approach 2:
The patent replaces the mechanical paper tape joining system with a mucilage-based connection system that allows for more flexible angle collation while maintaining manufacturing efficiency through a different bonding mechanism
2Ease of manufacture
If traditional nail designs are used, then manufacturing is simpler, but fastening effectiveness and pull-through resistance deteriorate
Solution Approach 1:
The nail head is segmented into a clamp head design with distinct clamping surfaces that engage with the workpiece, separating the fastening function from the traditional single-surface head design, thereby improving reliability while maintaining manufacturability
Solution Approach 2:
The clamp head design features asymmetric clamping surfaces with specific angles (e.g., 45°) that provide superior grip and pull-through resistance compared to symmetric traditional heads, improving fastening effectiveness without significantly complicating manufacturing
3Device complexity
If traditional nail heads are used, then manufacturing is more straightforward, but nail pull-through resistance deteriorates
Solution Approach 1:
The clamp head design preliminarily establishes clamping engagement with the workpiece before the nail is fully driven, creating immediate resistance to pull-through forces through the angled clamping surfaces that grip the material
Solution Approach 2:
The clamp head design adds a dimensional element by extending clamping surfaces laterally from the nail shank, creating a three-dimensional gripping structure that provides pull-through resistance in addition to the primary fastening function
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 clamp head nail design effectively inhibits nail pull-through and enables cost-effective, efficient manufacturing of nail sticks with a wide range of collation angles, enhancing fastening performance in various applications.
Implementation Method 1
nails which are joined to each other by a material such as paper tape
Data Source
AI summary
A fastener having a clamp head which has a clamp with a clamp angle in a range of from 75 degrees to greater than 30 degrees. A nail having a clamp head which has a clamp with a clamp angle in a range of from 75 degrees to greater than 25 degrees. A nail stick having a collation angle which has a value greater than 25 degrees. A method of manufacturing a nail stick having a step of punching a collated band of wires to create clamp heads having clamps which respectively have a clamp angles in a range of from 60 degrees to 40 degrees.