Stretchable Strap Cover for Universal Device Protection

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Solution Overview

Problem

Portable electronic devices like cell phones and tablets are prone to damage due to their small size and sleek design, and existing protective cases can be expensive and not universally compatible with different sizes and shapes, while users often carry additional items like cards and cash that require separate holders.

Innovation Solution

A stretchable strap cover with a flexible and elastic pad that can extend around electronic devices, featuring apertures and straps for secure fitting, an intermediate web for branding or customization, and configurations for card holding and hand tethering, made from materials like silicone rubber for enhanced grip and protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional protective case is used, then protection against drops and damage is improved, but cost and device complexity increase

Engineering Contradiction:
Improveprotection against drops and damageVSAvoidcase structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The patent uses a thin, flexible protective film that can stretch and conform to the device surface. This film provides protection against scratches and minor impacts while remaining thin and simple in structure, avoiding the complexity of traditional hard cases with multiple components.

Inventive Principle:
Principle #30Flexible shells and thin films

Solution Approach 2:

The protective film's key parameter is its elasticity - it can stretch to accommodate the device contours and then return to its original state. This elastic property allows a single simple film to provide protection equivalent to more complex rigid cases.

Inventive Principle:
Principle #35Parameter changes

2Adaptability or versatility

If a universal protective solution is designed, then adaptability to different devices is improved, but manufacturing precision requirements increase

Engineering Contradiction:
Improvecompatibility with different device sizes and shapesVSAvoidfit accuracy
Core Design Contradiction:
Adaptability or versatilityVSManufacturing precision

Solution Approach 1:

The protective film is designed as a universal solution that can fit multiple device sizes and shapes. By making the film stretchable and flexible, a single design can accommodate variations in device dimensions without requiring precision-crafted custom cases for each device model.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The film transitions from a static rigid structure to a dynamic flexible membrane that can deform and adapt to different device geometries. This dynamic capability allows the same film to conform to various device shapes while maintaining protection, reducing the need for high manufacturing precision for each specific device variant.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If additional items like cards and cash are carried separately, then functionality is improved, but device complexity and portability decrease

Engineering Contradiction:
Improvecard holding capabilityVSAvoidaccessory integration
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple functions into a single integrated solution. The protective film is merged with card-holding pockets and cash compartments, creating a multi-functional accessory that protects the device while also storing cards and cash. This eliminates the need for separate wallets and cases, reducing overall complexity and improving portability.

Inventive Principle:
Principle #5Merging (Combining)

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

Provides universal compatibility and enhanced protection against scratches and drops, while allowing for the secure carrying of additional items like cards and cash, and can be customized or used as a promotional item.

Implementation Method 1

a flexible and elastic pad having a thickness, a perimeter, a length and a width

Methodology Applied
Scientific EffectElasticity: Elasticity

Data Source

PatentUS9438299B2Stretchable strap cover for electronic device
Publication Date: 2016.09.06 HANDSTANDS PROMO LLC
  • US9438299B2 patent drawing
  • US9438299B2 patent drawing
  • US9438299B2 patent drawing

AI summary

A stretchable strap cover for a handheld electronic device has a flexible and elastic pad with four apertures formed in the pad and extending through the thickness of the pad, and four straps defined between the four apertures and the perimeter of the pad. The pad has at least two configurations, including: 1) an initial configuration in which the pad is separate from the handheld electronic device, an in which the pad is unstretched with an initial unstretched perimeter, length and width, and in which the pad is flat and disposed in a flat layer having a thickness the same as the thickness of the pad, with the straps and the apertures disposed in the flat layer; and 2) an installed configuration in which the pad is coupled to the handheld electronic device, the pad being stretched and under tension, and the straps being disposed out of the flat layer.