Arrow Fletching Protector Structure for Shape and Angle Retention

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Solution Overview

Problem

Fletchings on arrows are prone to damage, deformation, and separation due to poor adhesion, environmental factors, and material limitations, affecting accuracy and stability.

Innovation Solution

A fletching protector with a body part and fletching receiving portions that include a through-hole and receiving grooves to securely hold the fletching, using materials like PET, silicon, and ABS resin to prevent deformation and damage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If fletching is attached to the shaft using conventional methods, then the arrow can be assembled and used, but the fletching is easily separated due to poor adhesion

Engineering Contradiction:

Improveadhesion strengthVSAvoidattachment strength

Core Design Contradiction:

ReliabilityVSStrength

Solution Approach 1:

The fletching is divided into multiple segments that can be independently attached to the shaft. Each segment has its own attachment mechanism, allowing for distributed adhesion points that improve overall attachment strength while maintaining the ability to conform to the shaft surface.

Inventive Principle:

Principle #1Segmentation

Solution Approach 2:

Adhesive material is pre-applied to the shaft surface or fletching segments before assembly. This preliminary application of adhesive ensures proper positioning and bonding when the fletching is attached, preventing separation during use.

Inventive Principle:

Principle #10Preliminary action

2Stability of the object's composition

If rubber fletching is used for its flexibility and aerodynamic properties, then the arrow flies stably, but the fletching bends or twists due to environmental factors during storage

Engineering Contradiction:

Improveflight stabilityVSAvoidfletching shape

Core Design Contradiction:

Stability of the object's compositionVSShape

Solution Approach 1:

The fletching is constructed using flexible material that can bend and twist during flight to maintain aerodynamic stability, while incorporating a protective coating or shell that prevents permanent deformation from environmental factors during storage.

Inventive Principle:

Principle #30Flexible shells and thin films

Solution Approach 2:

A protective layer or coating is applied to the fletching before use to cushion it against environmental factors such as UV radiation, moisture, and temperature changes that could cause bending or twisting during storage.

Inventive Principle:

Principle #11Beforehand cushioning (Prior cushioning)

3Shape

If plastic fletching is used for thin arrows to avoid twisting, then the fletching maintains its shape, but the lifespan is short due to reduced rotational force

Engineering Contradiction:

Improveshape retentionVSAvoidlifespan

Core Design Contradiction:

ShapeVSDuration of action of stationary object

Solution Approach 1:

The fletching is made from composite materials that combine the shape-retention properties of plastic with the flexibility and durability of rubber. This composite construction allows the fletching to maintain its shape while enduring longer under flight conditions.

Inventive Principle:

Principle #40Composite materials

4Ease of manufacture

If the fletching angle is not precisely attached to the shaft, then assembly is easier, but the arrow loses accuracy due to improper angle

Engineering Contradiction:

Improveassembly easeVSAvoidfletching angle precision

Core Design Contradiction:

Ease of manufactureVSManufacturing precision

Solution Approach 1:

The fletching and shaft are designed with asymmetric features such as keyed connections or angled attachment surfaces that automatically orient the fletching at the correct angle during assembly. This asymmetric design ensures precise angular positioning while remaining easy to assemble.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS20260043640A1Fletching protecter

Publication Date: 2026.02.12 SHINKWANG LEPORTS

AI summary

According to an embodiment of the present invention, the fletching protector, wherein a body part provided with a through hole into which a shaft is inserted is comprised; wherein a receiving groove into which a fletching is inserted to be received is comprised; and wherein at least one fletching receiving portion provided with the receiving groove is comprised to prevent deformation and damage of the fletching, can be provided.