Integral Elastomer Slingshot Bands for Balanced Projectile Flight

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Solution Overview

Problem

Sling shot rifles often impart uneven reactive forces on arrows or projectiles due to imbalanced rubberized bands, causing off-center flight paths and difficulty in hitting targets.

Innovation Solution

The design incorporates resiliently stretchable bands and a pouch integrally formed from materials like rubber or elastomer, with mounting formations that are releasably attached to arms, ensuring balanced force distribution and improved projectile alignment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Speed

If separate rubberized bands are used to launch projectiles, then the slingshot can achieve high launch speed, but the bands impart uneven reactive forces causing off-center flight paths

Engineering Contradiction:
Improveprojectile launch speedVSAvoidflight path accuracy
Core Design Contradiction:
SpeedVSManufacturing precision

Solution Approach 1:

The patent combines multiple rubberized bands and the pouch into a single integrally formed elastomeric component. This merging eliminates the alignment and force balance issues that arise from assembling separate bands, as the integral structure ensures uniform force distribution across the pouch during projectile launch, thereby maintaining high speed while improving flight path accuracy.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes elastomeric materials that exhibit both high elasticity for rapid energy release (achieving high launch speed) and uniform mechanical properties throughout the structure (ensuring even force distribution). The composite nature of the elastomeric material allows simultaneous optimization of both speed and accuracy that cannot be achieved with traditional separate rubber bands.

Inventive Principle:
Principle #40Composite materials

2Adaptability or versatility

If separate rubberized bands are assembled to form the slingshot, then the structure can be adjusted and replaced, but the assembly imparts uneven forces due to alignment issues

Engineering Contradiction:
Improveband replacement and adjustmentVSAvoidforce distribution consistency
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

By merging the bands and pouch into one integrally formed component, the patent eliminates alignment variability inherent in assembled structures. The integral construction ensures that force distribution remains consistent and reliable across multiple uses, while the entire assembly can still be replaced as a single unit if needed.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The integral structure serves itself by inherently maintaining proper force balance and alignment without requiring precise assembly procedures. The design self-corrects potential alignment issues that would plague separately assembled bands, providing reliable and consistent force distribution automatically.

Inventive Principle:
Principle #25Self-service

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 improved slingshot achieves consistent and accurate projectile flight by evenly distributing forces, enhancing the user's ability to hit targets with arrows or pellets.

Implementation Method 1

a first resiliently stretchable band comprising a first end and an opposite second end, a second resiliently stretchable band comprising a third end and an opposite fourth end

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS12385712B2Slingshot
Publication Date: 2025.08.12 KHOSHNOOD BAHRAM
  • US12385712B2 patent drawing
  • US12385712B2 patent drawing
  • US12385712B2 patent drawing

AI summary

An improved slingshot comprises a grip comprising a handle, a first arm coupled to the handle and a second arm coupled to the handle, a resiliently stretchable sling comprises a first resiliently stretchable band comprising a first end and an opposite second end, a second resiliently stretchable band comprising a third end and an opposite fourth end, a first mounting formation integrally formed with the first band second end, a second mounting formation integrally formed with the second band fourth end, and a first pouch integrally formed with the first band first end and the second band third end. The first resiliently stretchable band, the second resiliently stretchable band, the pouch and the first and the second mounting formations are all formed from the same material, where the first mounting formation is configured to be releasably attached to the first arm, and the second mounting formation is configured to be releasably attached to the second arm.