Vehicle Key Assembly with Nested Emergency Key Ring

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Conventional vehicle key assemblies have low aesthetic quality and are prone to accidental separation of the emergency key due to its exposed design, which complicates volume reduction and functionality.

Innovation Solution

A vehicle key assembly with a main body case, an emergency key, a restraining member, and a manipulator that allows the emergency key to be accommodated and the key ring to be protruded or separated by controlled operation of the manipulator, utilizing elastic members and locking mechanisms to manage the key ring's protrusion and the emergency key's separation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the key ring or emergency key is always exposed to the outside of the main body case, then the user can easily access and use the emergency key, but the aesthetic quality is reduced and the volume cannot be reduced

Engineering Contradiction:
ImproveAccessibility of emergency keyVSAvoidAesthetic quality
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The key ring member is nested within the knob case, allowing it to be stored inside when not in use and protrude when needed. This nesting arrangement enables the key ring to be kept inside the main body case for aesthetic purposes while still being accessible when required, resolving the contradiction between aesthetic quality and ease of operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

2Ease of operation

If the key ring or emergency key is always exposed to the outside of the main body case, then the user can easily access and use the emergency key, but the volume of the key assembly increases

Engineering Contradiction:
ImproveAccessibility of emergency keyVSAvoidVolume of key assembly
Core Design Contradiction:
Ease of operationVSVolume of moving object

Solution Approach 1:

The key ring member is nested within the knob case, allowing it to be stored inside when not in use. This reduces the overall volume of the key assembly when the key ring is not needed, while still maintaining easy accessibility when required, thus resolving the contradiction between ease of operation and volume reduction.

Inventive Principle:
Principle #7Nested doll (Nesting)

3Adaptability or versatility

If the key ring is exposed to the outside of the main body case, then it can be used for holding accessories, but accidental separation of the emergency key from the main body case occurs when external force is applied

Engineering Contradiction:
ImproveAccessory holding functionVSAvoidConnection stability between emergency key and main body case
Core Design Contradiction:
Adaptability or versatilityVSReliability

Solution Approach 1:

The key ring member is designed to be movable relative to the knob case, allowing it to transition between a protruded state (for accessory holding) and a retracted state (for stable connection). This dynamic design enables the system to adapt to different functional requirements while maintaining connection stability when the key ring is not in use, resolving the contradiction between adaptability and reliability.

Inventive Principle:
Principle #15Dynamics

4Shape

If the emergency key is accommodated inside the main body case without protrusion, then aesthetic quality is improved and volume is reduced, but the user cannot easily access and use the emergency key

Engineering Contradiction:
ImproveAesthetic qualityVSAvoidAccessibility of emergency key
Core Design Contradiction:
ShapeVSEase of operation

Solution Approach 1:

The emergency key system is segmented into two independent components: the key portion (with key portion locking portion) and the key ring member (with key ring member locking portion). This segmentation allows the key ring to protrude for accessory holding while the key portion remains securely accommodated inside the main body case, maintaining both aesthetic quality and ease of operation for the key functions.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The key ring member is nested within the knob case, allowing it to protrude when needed for accessory holding while the key portion remains accommodated inside the main body case. This nesting arrangement maintains the aesthetic quality of the accommodated key while providing easy accessibility through the protruding key ring, resolving the contradiction between aesthetic quality and ease of operation.

Inventive Principle:
Principle #7Nested doll (Nesting)

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 enhances aesthetic quality by keeping the emergency key internal and prevents accidental separation, allowing controlled protrusion of the key ring for accessory use while enabling easy separation of the emergency key when needed, all through a single manipulator operation.

Implementation Method 1

one or more elastic members provided in the knob case and configured to press the key ring member in a protrusion direction in which the key ring member protrudes

Methodology Applied
Scientific EffectElastic force: Elasticity

Data Source

PatentUS11408199B2Vehicle key assembly
Publication Date: 2022.08.09 HYUNDAI MOTOR CO LTD
  • US11408199B2 patent drawing
  • US11408199B2 patent drawing
  • US11408199B2 patent drawing

AI summary

A vehicle key assembly may include a main body case; an emergency key including a key portion and a knob connected to the key portion and provided to be introduced into the main body case; a restraining member; and a manipulator configured to operate the restraining member, wherein the knob includes: a knob case connected to the key portion and configured to close an opening of the main body case in a state of being accommodated in the main body case; a key ring member mounted on the knob case to be introduced into or retracted from the knob case to be protruded to an outside of the main body case; and one or more elastic members provided in the knob case and configured to press the key ring member in a protrusion direction in which the key ring member is protruded.