Cutting Tool Shock Absorption for User Comfort
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Solution Overview
Problem
Conventional cutting tools, such as hedge shears and loppers, cause uncomfortable jarring to users due to the impact of blades when they reach their stop position, and often require significant resistance to reopen, making it difficult to separate them for the next cut.
Innovation Solution
Incorporating shock absorption means, such as resilient materials like rubber or foam, into the shear parts or handles of cutting tools to absorb the impact and provide a spring back effect, facilitating easier reopening after each cut.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If conventional cutting tools are used without shock absorption means, then the structure is simple and easy to manufacture, but the user experiences uncomfortable jarring and resistance when opening the tool after cutting
Solution Approach 1:
The patent applies shock absorption means (such as rubber or foam materials) at strategic locations on the shear parts or handles to cushion the impact before it reaches the user. This beforehand cushioning absorbs the shock of blade closure and facilitates easier reopening, directly resolving the contradiction between user comfort and structural simplicity.
Solution Approach 2:
The shock absorption means acts as an intermediary element between the blade assembly and the user's hand. This intermediary component absorbs and dissipates the impact energy, mediating the interaction between the mechanical cutting action and the user, thereby improving comfort without fundamentally altering the core cutting mechanism.
2Object-affected harmful factors
If shock absorption means are added to the shear parts or handles, then the impact is absorbed and user comfort is improved, but the device complexity increases
Solution Approach 1:
Instead of making the entire tool structure complex, the shock absorption means is applied locally at specific positions where impact occurs (on the shear parts or handles). This localized application absorbs harmful impact factors while maintaining the simplicity of the overall tool structure, resolving the contradiction between impact reduction and structural complexity.
Solution Approach 2:
The patent employs composite construction by combining traditional cutting tool materials with shock absorption materials (rubber or foam). This composite approach integrates the shock absorption function into the existing tool structure without requiring a completely new design, thereby reducing harmful impacts while minimizing the increase in device complexity.
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
The shock absorption means effectively reduces the discomfort caused by blade impact and simplifies the process of reopening the cutting tool, enhancing user experience by providing a cushioning effect and aiding in readying the tool for the next cut.
Implementation Method 1
the shock absorption means is at least partly made from a resilient material, for example rubber or foam. Advantageously, such a resilient material can be used to absorb energy.
Implementation Method 2
at least one of the first and second shear parts comprises shock absorption means for absorbing the impact created by the closure of the first and second shear parts
Data Source
Figure 1~2
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AI summary
A cutting tool 1 comprises a first shear part 2 and a second shear part 3. The second shear part 3 is rotatably connected to the first shear part 2. At least one of the first and second shear parts 2,3 comprises a cutting blade 4,6. At least one of the first and second shear parts 2,3 comprises shock absorption means 20, 30.