Self-Resilient Handle Crimping Tool Design
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Solution Overview
Problem
Existing hand tools, such as crimping pliers, require complex constructions with many parts to accommodate objects of different sizes, making them less efficient and durable.
Innovation Solution
A hand tool design featuring a first handle with a resilient portion between the crimp portion and the pivot point, allowing the crimp portion to flex, and a second jaw pivotally arranged around separate pivot points, reducing the need for a separate resilient system and simplifying the construction by integrating fewer components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If a separate resilient system is added to accommodate objects of different sizes, then the tool can handle varying crimp forces, but the construction becomes more complex with more parts
Solution Approach 1:
The resilient portion is integrated directly into the first handle structure, merging the resilient function with the handle itself rather than using a separate resilient system. This integration eliminates additional components while maintaining the ability to accommodate objects of different sizes through the inherent flexibility of the resilient portion in the handle.
Solution Approach 2:
The first handle serves multiple functions: it provides structural support, acts as a lever for actuation, and incorporates the resilient portion to accommodate varying crimp forces. This multi-functionality allows the tool to handle objects of different sizes without requiring separate specialized components for each function.
2Device complexity
If a resilient portion is integrated into the handle, then the construction is simplified with fewer parts, but the durability may be compromised
Solution Approach 1:
By merging the resilient portion with the handle structure, the invention eliminates separate resilient components that would require additional connection points and assembly steps. This integration reduces the number of potential failure points while maintaining durability through the unified structural design.
Solution Approach 2:
The resilient portion is designed as a distinct segment within the handle structure, allowing it to flex independently while remaining integrated with the overall handle. This segmentation enables the resilient function to be built into the handle in a way that maintains both simplicity and durability.
3Adaptability or versatility
If the crimp portion is made resilient to flex, then objects of different sizes can be crimped with adequate force, but the stress distribution may cause fatigue
Solution Approach 1:
The resilient portion introduces dynamic flexibility to the handle, allowing it to adapt its stiffness and force transmission characteristics based on the size of the object being crimped. This dynamic response distributes stress more evenly during operation, reducing peak stresses that would otherwise lead to fatigue in rigid structures.
Solution Approach 2:
The resilient portion changes the mechanical parameters of the handle, transforming it from a rigid structure to one with controlled flexibility. This parameter change allows the handle to absorb and distribute stresses more effectively, extending tool life while maintaining the ability to crimp objects of different sizes with adequate force.
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 crimping of objects of varying sizes with adequate force using fewer parts, enhancing durability and reducing complexity, while distributing stress across resilient portions to reduce fatigue and prolong tool life.
Implementation Method 1
The first handle comprises a first resilient portion between the first crimp portion and the first pivot point, allowing the first crimp portion to flex with respect to the first pivot point
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A hand tool (1) comprising a first handle (2) and a second handle (3), which are pivotally arranged with respect to each other, a first jaw (4) that is fixed to said first handle (2), the first jaw (4) comprising a first crimp portion (6), and a second jaw (5) comprising a second crimp portion (7), wherein the first and second crimp portions (6,7) are arranged to be moved towards each other by actuation of the first and a second handle (2,3), so as to close a crimp opening (8) formed between said first and second crimp portions (6,7). The second jaw (5) is pivotally arranged with respect to the first handle (2) around a first pivot point (10), and with respect to the second handle (3) around a second pivot point (11) arranged at an upper end of said second handle (3), wherein the first handle (2) comprises a first resilient portion (12) between the first crimp portion (6) and the first pivot point (10), allowing the first crimp portion (6) to flex with respect to the first pivot point (10).