Telescopic Dart Tail Wing Reducing Impact Force
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Solution Overview
Problem
In dart sports, repeated collisions between darts in a target lead to significant force and damage due to fatigue failures, as existing darts lack effective collision resistance and durability.
Innovation Solution
A dart with a telescopic tail wing design featuring a movably attached sleeve and wing blades, an elastic piece, and a clamping mechanism that allows the tail wing to telescope and rotate, reducing impact force and enhancing durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a traditional fixed tail wing design is used, then the structure is simple and easy to manufacture, but the dart suffers from poor collision resistance and high damage rate due to fatigue failures
Solution Approach 1:
The tail wing is designed to be movable relative to the dart rod through a telescopic mechanism, allowing it to rotate and telescope during collision. This dynamic capability enables the tail wing to absorb impact forces and reduce damage to the dart rod, directly improving collision resistance while maintaining reasonable structural complexity through the use of a telescopic cavity and limiting part.
Solution Approach 2:
The tail wing assembly is segmented into separate components: the tail wing body, the telescopic cavity, the limiting part, and the elastic piece. This segmentation allows each component to perform its specific function independently - the tail wing rotates to redirect force, the telescopic cavity provides movement space, the limiting part controls the range of motion, and the elastic piece returns the tail wing to its original position, collectively improving reliability without excessive complexity.
2Reliability
If the tail wing is made movable with telescopic capability, then collision resistance improves, but the assembly complexity increases
Solution Approach 1:
The tail wing is nested within the telescopic cavity of the dart rod, allowing it to telescope in and out along the dart rod's length. This nesting arrangement enables the tail wing to move forward during collision without requiring a completely separate mechanical linkage system, thereby improving service life through better collision absorption while keeping the assembly structure relatively compact and manageable.
Solution Approach 2:
The elastic piece is designed to automatically return the tail wing to its original position after collision without requiring external intervention or complex return mechanisms. The tail wing's telescopic movement is self-limiting through the limiting part, and the elastic piece provides automatic recovery, reducing the need for additional active control systems and simplifying the overall assembly.
3Force
If a telescopic mechanism is added to the tail wing, then impact force reduction is achieved, but manufacturing complexity and cost increase
Solution Approach 1:
The telescopic cavity is designed with specific dimensional parameters - a depth that is 1-2 times the height of the tail wing - to optimize the telescopic movement range. This parameter optimization ensures that the tail wing can effectively telescope during collision to reduce impact force while keeping the manufacturing dimensions practical and cost-effective, avoiding excessive complexity in the cavity design.
Solution Approach 2:
The limiting part acts as an intermediary element between the tail wing and the telescopic cavity, controlling the range of motion and ensuring proper alignment. This intermediary component simplifies the manufacturing process by providing a clear interface for assembly and defining the operational parameters, thereby reducing overall manufacturing complexity while achieving effective impact force reduction through controlled telescopic movement.
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 telescopic tail wing design effectively reduces collision-induced damage, increases the dart's service life, and simplifies assembly while maintaining low production costs.
Implementation Method 1
the limiting part in the sleeve compresses the elastic piece to enable the tail wing to move forwards without moving the dart rod
Implementation Method 2
when the force applied to the rear end of the tail wing disappears, the tail wing returns to the original position under the effect of the elastic piece
Data Source
AI summary
A dart with a telescopic tail wing composes a dart rod, a dart head disposed at a front end of the dart rod and a tail wing disposed at a rear end of the dart rod. A tail wing connecting part is disposed at the rear end of the dart rod. The tail wing comprises a sleeve and multiple wing blades disposed on the sleeve. A clamping part is disposed on the tail wing connecting part. A limiting part is disposed in the sleeve. The tail wing connecting part is inserted into the sleeve. The clamping part stretches from one side to the other side of the limiting part and is matched with the limiting part. An elastic piece is disposed around the tail wing connecting part. The tail wing can rotate on the tail connecting part and can telescopic. In case of a collision, the tail wing can rotate to reduce force, so that compared with the prior art, dart is simple in structure, easy to assemble and low in production cost.