Dual-Cut Pliers Jaw With Visual Indicator for Faster Cut Selection
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Solution Overview
Problem
Existing cutting pliers require precise jaw alignment for different cutting tasks, which is time-consuming and inefficient.
Innovation Solution
A dual-cut pliers design with two distinct cutting profiles and an indicator to visually differentiate between them, allowing quick selection without reorientation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If cutting pliers are configured for multiple cutting tasks with different jaw alignments, then versatility is improved, but alignment time and user effort increase
Solution Approach 1:
The cutting edge is segmented into distinct sections, each with a different cutting profile (e.g., flush-cut section and diagonal-cut section). The shoulder on the jaw divides the cutting edge into these functional segments, allowing users to select different cutting profiles by positioning the material at different locations along the cutting edge, eliminating the need to realign the entire jaw assembly.
Solution Approach 2:
The patent introduces a spatial dimension to cutting profile selection by incorporating a shoulder that creates offset cutting surfaces at different angles and positions. Instead of rotating or reorienting the jaws to change cutting profiles, users can access different profiles by utilizing the multi-dimensional geometry of the cutting edge, which includes both angular variation and positional variation along the jaw length.
2Adaptability or versatility
If cutting pliers are configured for multiple cutting tasks with different jaw alignments, then versatility is improved, but user effort increases
Solution Approach 1:
The cutting edge is segmented into distinct sections, each with a different cutting profile (e.g., flush-cut section and diagonal-cut section). The shoulder on the jaw divides the cutting edge into these functional segments, allowing users to select different cutting profiles by positioning the material at different locations along the cutting edge, eliminating the need to realign the entire jaw assembly.
Solution Approach 2:
The jaw structure itself provides the selection mechanism through its built-in shoulder and multi-profile cutting edge. The tool is self-configuring in the sense that the different cutting profiles are permanently integrated into the jaw geometry, and the user simply needs to position the material correctly without requiring active adjustment mechanisms or additional user effort to change profiles.
3Device complexity
If cutting pliers have a single cutting edge, then device complexity is reduced, but adaptability decreases
Solution Approach 1:
Different sections of the cutting edge have different local qualities - specifically, different angles and orientations. The shoulder creates distinct zones along the cutting edge where each zone is optimized for a specific cutting task. This allows a single jaw to have heterogeneous cutting properties along its length, providing multiple cutting profiles without requiring multiple separate jaws or complex adjustment mechanisms.
Solution Approach 2:
The single jaw structure is designed to perform multiple cutting functions through its multi-profile cutting edge. By integrating different cutting profiles (flush-cut, diagonal-cut, and other angles) into one jaw, the tool achieves multi-functionality without the complexity of multiple interchangeable jaws or adjustable mechanisms. The shoulder serves as both a structural feature and a functional divider between different cutting modes.
Data Source
AI summary
A hand tool having a first arm and a second arm coupled by a pivot and a handle defined away from the pivot as part of a first end of the first and second arms. The hand tool includes a nose adjacent to the pivot at a second end of the first and second arms. The nose includes a first jaw including the second end of the first arm, the first jaw including a shoulder formed to define a first cutting profile and a second cutting profile, a second jaw including the second end of the second arm, wherein the first jaw and the second jaw cooperate to define a cutting edge including the first cutting profile and the second cutting profile, and an indicator provided on the shoulder, wherein the indicator identifies the first cutting profile from the second cutting profile.