Wire Stripper Cutting Depth Adjustment for Insulation Variations
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Solution Overview
Problem
Existing wire strippers struggle with adjusting the cutting depth of cutting jaws to accommodate variations in insulation thickness, particularly across different cable batches or manufacturers, often requiring manual adjustment on one side only and lacking fine-tuning capabilities.
Innovation Solution
A wire stripper design that allows for both automatic and manual adjustment of cutting depth by enabling relative displacement of the cam section, using a movable jaw connected via a lever mechanism, with eccentric components for precise manual fine-tuning, and guided by elongated holes for independent adjustment.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional stripping pliers are used, then the basic stripping function is provided, but the pliers cannot effectively grip smooth surfaces like PEX tubing and require two hands to operate
Solution Approach 1:
The patent applies local quality by providing different jaw surface textures for different functions: one jaw has a smooth surface for gripping smooth PEX tubing, while the other jaw has a textured surface for gripping standard electrical wiring. This localized differentiation of surface properties enables the pliers to effectively grip various wire types with a single tool.
Solution Approach 2:
The patent implements universality by designing the stripping pliers to handle multiple wire types and stripping tasks through its dual-texture jaw design. The pliers can strip both smooth PEX tubing and standard electrical wiring, and can perform both stripping and cutting functions, reducing the need for multiple specialized tools.
2Productivity
If conventional stripping pliers require two hands to operate, then stability is improved, but productivity decreases due to inability to maintain wire bundle grip
Solution Approach 1:
The patent applies curvature by designing the jaw surfaces with curved contours that conform to the cylindrical shape of wire bundles. The curved jaw surfaces provide natural contact points that enable secure single-hand gripping, allowing the user to maintain control of the wire bundle throughout the stripping motion without requiring two hands.
3Adaptability or versatility
If cutting edges are positioned far from the pivot point, then cutting capability is improved, but the tool cannot strip small gauge wires
Solution Approach 1:
The patent applies segmentation by providing multiple sets of cutting edges at different distances from the pivot point. This allows the user to select the appropriate cutting edge set for the specific wire gauge being processed, enabling the tool to handle both small gauge wires and larger cables effectively.
4Ease of operation
If conventional pliers lack wire management features, then device complexity is reduced, but wire twisting and tangling occurs during stripping
Solution Approach 1:
The patent merges multiple functions into a single integrated tool by combining stripping edges, cutting edges, and a wire management groove within the jaw structure. The groove is integrated into the jaw body, allowing the user to control and guide the wire bundle through the entire stripping process without requiring separate wire management tools or techniques.
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
Enables precise cutting depth adjustment in the range of hundredths of a millimeter, accommodating insulation thickness variations and ensuring the conductor is not damaged, with enhanced flexibility and accuracy.
Implementation Method 1
At least one of the jaws is resilient
Implementation Method 2
positioned relative to a pivot point of the pliers
Data Source
Figure 1
Figure 2~3
Figure 4~5
AI summary
The invention relates to stripping pliers (1) having two pliers jaws (2, 3), two outer clamping jaws (19, 20), two inner cutting jaws (22, 23) and two handle parts (4, 5), wherein, in the course of pressing together the handle parts (4, 5), the cutting jaws (22, 23) can be displaced by means of a pull rod (30) from a starting position into an end position, wherein, furthermore, the cutting jaws (22, 23) are guided in their displacement direction (r) on a slotted link part (46, 47) which is movable in the displacement direction (r) and which for its part is supported on a clamping jaw-mounted slotted link (48, 49), by means of which slotted link part (46, 47) the cutting jaws (22, 23) are moved towards one another to different degrees in dependence on a closed position of the clamping jaws (19, 20), which closed position determines the movement of the slotted link part (46, 47). In order to further improve stripping pliers of the type in question in particular in terms of the cutting depth adaptation of the cutting jaws, it is proposed that the slotted link part (46, 47) is adjustable independently of a closed position of the clamping jaws (19, 20) with respect to a position relative to the slotted link (48, 49).