Pliers With Segmented Grip For Reaming And Comfort
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Solution Overview
Problem
Conventional pliers designs often lack ergonomic features and versatility in handling different sizes and types of materials, particularly in gripping and reaming operations, leading to user discomfort and inefficiency.
Innovation Solution
The design incorporates pivotally connected members with adjustable jaws, exposed handle ends for reaming, and strategically positioned grips with slots for easy assembly, allowing for adjustable grip sizes and versatile use in gripping and reaming applications.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the grip is positioned to cover the entire handle for ergonomic comfort, then user comfort is improved, but the handle end cannot be exposed for reaming operations
Solution Approach 1:
The grip is segmented into two distinct portions: a first grip portion positioned on the first handle and a second grip portion positioned on the second handle. This segmentation allows each grip portion to be optimized independently - the first grip portion can be positioned to maximize user comfort while the second grip portion can be positioned to allow exposure of the handle end for reaming operations.
Solution Approach 2:
Different regions of the pliers are given different functional qualities. The first grip portion area is optimized for ergonomic comfort with full handle coverage, while the second grip portion area is optimized for versatility by allowing handle end exposure for reaming. This local differentiation resolves the contradiction between comfort and adaptability.
2Strength
If the grip is made rigid for structural strength, then structural integrity is improved, but assembly of the handle through the grip becomes difficult
Solution Approach 1:
The grip is designed with dynamic characteristics - it can deflect elastically during assembly to allow the handle to pass through, then maintains structural rigidity during use. The slot feature enables this dynamic behavior by allowing temporary deformation during assembly while preserving overall structural integrity.
Solution Approach 2:
The grip incorporates flexible elements through the slot design that allow temporary deformation during assembly. The grip material and structure are designed to be flexible enough to deflect during handle insertion while maintaining sufficient rigidity for structural strength during operation.
3Ease of manufacture
If the grip is designed with slots for easy assembly, then assembly ease is improved, but the grip structure becomes more complex
Solution Approach 1:
The slot feature segments the grip structure into distinct regions - the slot portions and the solid grip portions. This segmentation simplifies the overall design by creating a modular structure that is easier to manufacture and assemble, while the repeated pattern in both grip portions reduces design complexity.
Solution Approach 2:
The slot design serves multiple functions: it facilitates assembly by allowing grip deflection, provides structural reinforcement at critical points, and maintains ergonomic characteristics. This multi-functionality justifies the added structural elements while delivering multiple benefits.
Data Source
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AI summary
A pliers (310) comprising: a first member (314) including a first head (322A) and a first handle (324A) having a recessed grip area (337A) bounded by a forward lip (339A) and a rear lip (341A), the forward lip having a cross-sectional area not greater than a cross-sectional area of a portion of the first handle adjacent the forward lip and opposite the grip area; a first grip (326A) positioned on the grip area of the first handle; a second member (318) pivotally coupled to the first member, the second member including a second head (322B) and a second handle (324B) having a recessed grip area (337B) bounded by a forward lip (339B) and a rear lip (341B), the forward lip having a cross-sectional area not greater than a cross-sectional area of a portion of the second handle adjacent the forward lip and opposite the grip area; and a second grip (326B) positioned on the grip area of the second handle.