Smart Key Storage Case With Magnetic Shielded One-Hand Closure

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Solution Overview

Problem

Conventional smart key storage cases fail to easily close the internal space with one hand and do not effectively determine the key position within the case, making them vulnerable to relay attacks and difficult to use.

Innovation Solution

A smart key storage case with a housing body featuring inclined surfaces and a rotatable opening/closing mechanism, where at least one surface is shielded to prevent radio wave transmission and reception, allowing easy one-handed closure and key positioning using magnets for sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional smart key storage case with a lid portion is used, then signal shielding is achieved, but the internal space cannot be easily closed with one hand

Engineering Contradiction:
Improvesignal shieldingVSAvoidclosure operation
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The housing body is divided into multiple wall bodies (upper side wall body, lower side wall body, side wall body with front/rear/first/second wall bodies) that form the internal space. This segmentation allows the opening/closing body to selectively close the opening while maintaining the shielded internal space structure.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A magnet is introduced as an intermediary force between the opening/closing body and the housing body. The magnet enables automatic engagement and sealing of the opening/closing body with the housing body, allowing easy one-handed closure while maintaining reliable signal shielding without requiring complex mechanical fastening mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

2Reliability

If a conventional smart key storage case is used, then signal shielding is provided, but the key position cannot be easily determined within the case

Engineering Contradiction:
Improvesignal shieldingVSAvoidkey position detection
Core Design Contradiction:
ReliabilityVSDifficulty of detecting and measuring

Solution Approach 1:

The lower side wall body includes a first inclined surface that is inclined so as to become lower toward at least any one of the front side wall body, the rear side wall body, the first wall body and the second wall body. This inclined surface guides the smart key to a specific position within the internal space, making it easy to determine the key's location while maintaining the shielded environment.

Inventive Principle:
Principle #14Spheroidality (Curvature)

3Ease of operation

If the opening/closing body is made rotatable toward the internal space, then ease of operation is improved, but device complexity increases

Engineering Contradiction:
Improveopening/closing operationVSAvoidrotational mechanism
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The opening/closing body is configured to be rotatable toward the internal space, allowing it to automatically engage and seal itself with the housing body when closed. The magnet provides automatic engagement force, eliminating the need for complex locking mechanisms or additional fastening components, thus maintaining simplicity while enabling easy one-handed operation.

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 solution enables easy one-handed closure and secure shielding of the smart key, preventing relay attacks by ensuring the internal space is sealed and the key is easily located within the case.

Implementation Method 1

at least any one of the front side wall body and the opening/closing body includes a magnet fixing the opening/closing body to the front side wall body

Methodology Applied
Scientific EffectMagnetism: Magnetism

Implementation Method 2

At least any one of an inner surface and an outer surface of the housing body is configured by a member that shields at least any one of radio waves transmitted from a key disposed in the internal space and radio waves received by the key

Methodology Applied
Scientific EffectRadio wave shielding: Absorption (EM radiation)

Implementation Method 3

The lower side wall body includes a first inclined surface that is inclined so as to become lower toward at least any one of the front side wall body, the rear side wall body, the first wall body and the second wall body

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS20240415254A1Key storage case
Publication Date: 2024.12.19 HARUWA CO LTD
  • US20240415254A1 patent drawing
  • US20240415254A1 patent drawing
  • US20240415254A1 patent drawing

AI summary

To provide a mechanism for a smart key storage case for preventing a relay attack, the mechanism allowing the inner space of the smart key storage case to be simply closed by one hand, while achieving the signal-blocking effect of the smart key storage case. According to an embodiment, a smart key storage case includes a housing body including an upper side wall body, a lower side wall body opposed to the upper side wall body, and a side wall body across the upper side wall body and the lower side wall body. The front side wall body includes an opening in communication with an internal space defined by the upper side wall body, the lower side wall body and the side wall body, and an opening/closing body openably/closably closing the opening. At least any one of an inner surface and an outer surface of the housing body is configured by a member that shields at least any one of radio waves transmitted from a key disposed in the internal space and radio waves received by the key. The lower side wall body includes an inclined surface.