Pliers With Tangential Handle Bend For Pivot Plane Separation
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Solution Overview
Problem
Conventional pliers designs, such as center cutters and side cutters, face challenges in handling due to the crossover of pliers legs, which can lead to collisions with bases or installations, limiting ergonomic usage and cutting efficiency.
Innovation Solution
The pliers legs are designed with a bend on the handle side, creating different pivoting planes for the gripping and working areas, allowing the crossover area to run on the handle side, enabling improved handling and maintaining favorable cutting properties by allowing the jaws to be held together with a strap and featuring a tooth gap engagement with a roller body for secure mounting.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the pliers legs are designed with a straight configuration and crossover point on the working side, then the structure is simple, but the user's fingers collide with surfaces or fixtures during operation
Solution Approach 1:
The pliers handle is designed with an angled section that changes the pivot plane from the working area to the handle area. This dimensional change in the pivot plane separates the user's fingers from potential collision with surfaces, while maintaining structural simplicity through a single angled section rather than multiple complex components
2Ease of operation
If the angled section is formed on the working area side, then handling is improved, but the cutting edge and tab area are compromised
Solution Approach 1:
The angled section is localized specifically to the handle area on the tab side, while the working area including the cutting edge and tab maintains its traditional straight configuration. This local modification allows ergonomic improvement in the handle area without compromising the cutting performance in the working area
3Adaptability or versatility
If the crossover area is positioned on the working side, then the structure is compact, but it limits access to tight work spaces
Solution Approach 1:
The crossover area is repositioned to the handle side by introducing an angled section that creates a different pivot plane. This spatial reconfiguration allows the crossover to occur outside the working area, enabling better access to tight spaces while maintaining a compact overall design through efficient use of the handle area
Data Source
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AI summary
The invention relates to pliers (1) as middle cutter or side cutter having plier jaws (4, 5) configured on plier legs, having a work range, wherein the plier legs having grip areas (2, 3) and configured to cross over one another around bearing bolts (6, 7) connected by a cover plate (8) are pivotably supported, and the plier jaws on the working region side of the cover plate (8) and the crossing region (K) of the plier legs are configured on the other side of the cover plate (8). In order to improve the handling of pliers of the type in question the invention proposes that relative to a side elevation, on the grip side with respect to the cover plate (8) in the plier legs, a tangential bend (A) is configured in which resultantly created different pivot planes (El-El) or (E2-E2) of the plier legs cross one another, wherein the grip areas (2, 3) run in one pivot plane (E2-E2) and in another pivot plane (El-El) areas of the plier legs extending on the work range side of the tangential bend (A) run.