High-Strength Wire Press Claw for Mesh Connection
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Solution Overview
Problem
Existing press claws for connecting wire meshes or wire netting are cumbersome to assemble, often damage their corrosion protection when closed with pliers, and are excessively heavy, leading to inefficiencies in connection and protection.
Innovation Solution
Press claws made of high-strength steel wire with angled legs and hooks that can move past each other when closed, paired with a device using a drill and clamping mechanism that eliminates the need for pliers and minimizes corrosion damage, featuring a magazine to prevent loose claws from getting caught.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If press claws are made of thick wire (6 mm diameter) to ensure strength, then connection strength is improved, but weight increases significantly
Solution Approach 1:
The patent changes the material parameter from conventional wire to high-strength steel wire, allowing a reduction in wire diameter from 6 mm to 4 mm while maintaining or improving connection strength. This parameter change in material properties enables weight reduction without sacrificing structural integrity
Solution Approach 2:
The patent employs high-strength steel wire as a composite material solution, combining high tensile strength with reduced cross-sectional area. This material selection achieves both strength requirements and weight reduction goals simultaneously
2Ease of manufacture
If press claws are closed manually with pliers, then connection is achieved, but corrosion protection is damaged and time is lost
Solution Approach 1:
The patent replaces the manual pliers-based mechanical closing system with a specialized closing device that uses controlled mechanical action. This substitution eliminates the damaging effect of pliers on the zinc layer while maintaining effective closure, and also reduces assembly time through the specialized tool design
Solution Approach 2:
The patent introduces a specialized closing device as an intermediary tool between the press claw and the final closed state. This intermediary device is designed to close the press claw without directly damaging the corrosion protection, unlike conventional pliers
3Ease of operation
If press claws are made loose for easy handling, then assembly flexibility is improved, but they get caught in each other causing delays
Solution Approach 1:
The patent implements a magazine system where multiple press claws are stored in an organized, nested arrangement. This allows the press claws to be kept together in a compact structure when not in use, preventing them from getting caught in each other, while still allowing quick access and easy handling when needed
Data Source
Figure 1a~2c
Figure 3~4
Figure 5
AI summary
A crimping claw for joining wire mesh or wire netting consists of a corrosion-protected wire and two legs (12, 13) projecting from a rounded base (11) and enclosing an opening angle (a) with each other. The legs are each provided with a hook (16, 17) at their free end, which are directed towards each other. These legs (12, 13) lie in two planes enclosing an angle, so that they can move past each other when the crimping claw is closed. The wire is a high-strength wire. A device serves to close the crimping claws (10). It has a clamping device (25) operatively connected to a drive and provided with clamping elements (30, 31) for closing individual crimping claws (10), in which the crimping claws (10) can be individually positioned before closing. This device allows for simple and quick assembly of such crimping claws.