Protective Case Hinge and Stylus Storage for Stable Tablet Use

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Solution Overview

Problem

Existing protective cases for electronic devices face issues with stability, durability, compatibility, and stylus storage, including instability, bulkiness, high costs, and inadequate stylus protection, which affect user satisfaction and productivity.

Innovation Solution

A protective case design featuring a hinge mechanism for adjustable positioning, integrated stylus storage with magnetic retention and charging, and a tray system for secure device holding, using magnets for secure attachment and wireless charging.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If protective cases include integrated stylus storage, then stylus security and organization are improved, but device complexity and bulkiness increase

Engineering Contradiction:
Improvestylus securityVSAvoidcase structure
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The stylus storage compartment is nested within the protective case structure itself, utilizing the case's internal volume to house the stylus securely. This integration eliminates the need for separate storage solutions while maintaining case compactness.

Inventive Principle:
Principle #7Nested doll (Nesting)

Solution Approach 2:

The protective case serves multiple functions: it protects the electronic device from damage, provides secure storage for the stylus, and offers organizational structure through its compartmentalized design. This multi-functionality reduces the need for separate accessories.

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

2Stability of the object's composition

If protective cases use rigid structures for stability, then device protection is improved, but portability and ease of carrying deteriorate

Engineering Contradiction:
Improvecase stabilityVSAvoidcase weight
Core Design Contradiction:
Stability of the object's compositionVSWeight of moving object

Solution Approach 1:

The protective case utilizes composite materials that combine rigidity for protection with lightweight properties for portability. This allows the case to maintain structural stability while minimizing weight impact on the overall device.

Inventive Principle:
Principle #40Composite materials

Solution Approach 2:

The case structure implements varying material densities and structural reinforcements only where needed for protection, rather than uniformly throughout. This localized approach maintains stability in critical areas while reducing overall weight.

Inventive Principle:
Principle #3Local quality

3Adaptability or versatility

If protective cases include multiple compartments and features, then functionality and versatility are improved, but manufacturing cost and complexity increase

Engineering Contradiction:
Improvecase functionalityVSAvoidmanufacturing simplicity
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The case is divided into distinct functional segments or compartments that can be manufactured separately and then assembled. This modular approach simplifies the manufacturing process for each component while achieving versatile functionality in the final product.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The case design integrates multiple functions into a single unified structure, reducing the need for separate components. The same structural elements serve both protective and organizational purposes, simplifying manufacturing while maintaining versatility.

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

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

Enhances stability and compatibility, provides ergonomic viewing angles, ensures secure stylus storage and charging, and reduces bulkiness, improving user convenience and productivity.

Implementation Method 1

a hinge, operatively connecting the front cover to the rear cover, defining a hinge axis, wherein the front cover is movable, relative to the rear cover and about the hinge axis, between a closed position and an open position

Methodology Applied
Scientific EffectHinge mechanism: Hinge

Implementation Method 2

the rear cover includes a sidewall, aligned along the hinge axis, and an second sidewall, aligned at an angle relative to the sidewall, that are configured to releasably retain the electronic device

Methodology Applied
Scientific EffectFriction: Friction

Implementation Method 3

integrated stylus storage with magnetic retention and charging

Methodology Applied
Scientific EffectMagnetic retention: Magnetism

Implementation Method 4

magnetic retention and charging

Methodology Applied
Scientific EffectWireless charging: Electromagnetic Induction

Data Source

PatentUS20250377689A1Protective case
Publication Date: 2025.12.11 RAKUTEN KOBO
  • US20250377689A1 patent drawing
  • US20250377689A1 patent drawing
  • US20250377689A1 patent drawing

AI summary

Some implementations may include a protective case for an electronic device. The protective case may include a front cover, a rear cover, and a hinge, operatively connecting the front cover to the rear cover, defining a hinge axis. The front cover may be movable, relative to the rear cover and about the hinge axis, between a closed position and an open position. The rear cover may include a first sidewall, aligned along the hinge axis, and a second sidewall, aligned at an angle relative to the first sidewall, that are configured to releasably retain the electronic device. The rear cover may include a storage compartment, positioned adjacent to the first sidewall, configured to detachably store a stylus associated with the electronic device.