Cut Resistant Clothing with Detachable Leather Layer
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Solution Overview
Problem
Current cut protection clothing for chainsaw or sawing work is not durable, lacks resistance to sharp objects, and has limited repairability, with synthetic textile outer layers being prone to cracking and aging quickly, and leather options being uncomfortable due to water saturation and inflexibility.
Innovation Solution
The use of a predominantly leather outer layer with a detachable or non-detachable cut-resistant material layer, featuring tightly packed polyester or aramid fibers, which can be easily repaired and provides enhanced protection and comfort by adapting to the body's shape, with the leather offering high tear resistance and breathability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If synthetic textile outer layer is used, then cut protection clothing is initially protective, but it cracks and ages quickly during normal use and washing, limiting service life to 1-2 years
Solution Approach 1:
The patent changes the material parameter of the outer layer from synthetic textile to leather, which fundamentally alters the durability characteristics. Leather naturally resists cracking and aging during washing and normal use, extending service life beyond 1-2 years while maintaining protective functionality.
Solution Approach 2:
The patent creates a composite structure combining leather outer layer with cut-resistant material layers underneath. This composite approach leverages the durability and weather resistance of leather while incorporating specialized cut-resistant materials to maintain protection against sharp objects throughout the extended service life.
2Reliability
If leather is used for the second layer, then durability and wear resistance are improved, but water saturation in areas like hem and crotch reduces comfort
Solution Approach 1:
The patent applies different material qualities to different body zones. While the outer layer is predominantly leather for durability, the design allows for strategic placement of seams and potential integration of breathable panels or gussets in high-moisture areas like crotch and hem, maintaining leather's protective benefits while addressing local comfort concerns through localized material or structural variations.
3Strength
If leather is used for the second layer, then tear resistance and elasticity are improved, but flat areas in bending zones reduce comfort
Solution Approach 1:
The patent incorporates elastic inserts in strategic locations such as crotch and armpit areas where bending occurs. These dynamic elements allow the leather garment to stretch and adapt to body movements, preventing the flat, restrictive feeling in bending zones while preserving leather's superior tear resistance in protective areas.
Solution Approach 2:
The use of elastic inserts creates flexible zones within the leather structure. These thin, stretchable elements allow the rigid leather shell to dynamically adapt to body contours and movements, maintaining comfort in high-flexion areas without compromising the overall structural integrity and tear resistance of the leather material.
4Ease of repair
If detachable cut protection material layer is used, then repairability is improved, but device complexity increases due to connecting elements
Solution Approach 1:
The patent divides the protective clothing into separable layers: an outer leather layer and a detachable cut-resistant material layer. This segmentation allows the cut-resistant layer to be removed, replaced, or repaired independently without affecting the leather outer layer, significantly improving repairability while using simple connecting elements like Velcro or buttons that minimize added 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 solution results in more durable and comfortable cut protection clothing that is resistant to cuts, abrasions, and moisture, with the leather layer providing improved wear resistance and ease of repair, while the cut-resistant material layer effectively prevents injuries from saw chains by guiding threads into the chainsaw's housing.
Implementation Method 1
leather is characterized by its resistance to sharp objects, its breathable behavior, its weather resistance
Implementation Method 2
the teeth of the saw chain, assuming they cut through the leather layer, pull the threads stored close together out of the knitted fabric and guide them into the housing of the Chainsaw to the saw chain drive sprocket. The threads wrap around the drive sprocket and stop the chainsaw within fractions of a second.
Data Source
Figure 1~3
Figure 4~6
AI summary
The cut protection clothing (1) consists of a first layer (2) of cut protection material (3) that has a second layer (4) on it and which may be partially made from leather (5). The first layer made from the cut protection material is unattached or detachably connected to the second layer made from leather. The first layer may be made from natural, plastic or synthetic fibres such as aramide, polyamide, polyester, polypropylene or glass filament fibres formed in a composite. The first and second layers of the cut protection clothing may be shaped or sewn or processed in a specific way to correspond with the torso regions of a person. The cut protection clothing may have an upper body protector.