Motor Vehicle Door Opening Apparatus with Nested Lock Barrel

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Solution Overview

Problem

Existing motor vehicle door opening systems compromise aerodynamics and visual appeal due to the presence of lock barrels and door handles, and they are vulnerable to theft and unauthorized access.

Innovation Solution

The door opening apparatus integrates the lock barrel and door handle entirely within the outer panel of the motor vehicle door, with inclined longitudinal axes and pivot axes to enhance accessibility and ergonomics, while maintaining aerodynamic and visual smoothness, and incorporates a bevel gear mechanism for secure operation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the lock barrel and door handle are arranged externally on the door surface, then accessibility and ease of operation are improved, but aerodynamics and visual smoothness deteriorate due to air eddying and contour interruptions

Engineering Contradiction:

ImproveAccessibility of lock barrel and door handleVSAvoidAir eddying and aerodynamic drag

Core Design Contradiction:

Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The lock barrel and door handle are nested within a recess in the door panel, positioned behind the outer surface. This allows the components to be accessible from the outside while being hidden from the external airflow, eliminating air eddying and maintaining aerodynamic smoothness while preserving full functionality.

Inventive Principle:

Principle #7Nested doll (Nesting)

2Ease of operation

If the lock barrel and door handle are arranged externally, then ease of operation is improved, but security and theft prevention worsen due to increased accessibility for manipulation

Engineering Contradiction:

ImproveAccessibility of lock barrel and door handleVSAvoidTheft prevention and security

Core Design Contradiction:

Ease of operationVSReliability

Solution Approach 1:

By nesting the lock barrel and door handle within a recess behind the outer door surface, the components remain accessible for legitimate operation while being protected from external manipulation and violent opening attempts, thereby enhancing security without compromising usability.

Inventive Principle:

Principle #7Nested doll (Nesting)

3Ease of operation

If the lock barrel and door handle are arranged externally, then ease of operation is improved, but visual appearance and contour smoothness deteriorate

Engineering Contradiction:

ImproveAccessibility of lock barrel and door handleVSAvoidContour smoothness and visual appearance

Core Design Contradiction:

Ease of operationVSShape

Solution Approach 1:

The lock barrel and door handle are positioned within a recess that is integrated into the door panel design, allowing the outer surface to maintain a smooth, continuous contour without interruptions, while the components remain fully accessible through the recess opening.

Inventive Principle:

Principle #7Nested doll (Nesting)

4Ease of operation

If the lock barrel is arranged with inclined longitudinal axis, then accessibility for emergency key insertion is improved, but device complexity increases

Engineering Contradiction:

ImproveAccessibility of emergency key to lock barrelVSAvoidLock barrel orientation and positioning

Core Design Contradiction:

Ease of operationVSDevice complexity

Solution Approach 1:

The lock barrel is positioned with an asymmetric inclined longitudinal axis within the recess, angled to provide optimal accessibility for emergency key insertion from the driver's position, while the inclination is integrated into the overall recess design to minimize additional complexity.

Inventive Principle:

Principle #4Asymmetry

Data Source

PatentUS8997537B2Opening apparatus for a door that has an outer panel, a motor vehicle and a motor vehicle door with such an opening apparatus

Publication Date: 2015.04.07 DR ING H C F PORSCHE AG

AI summary

A door (200) of a motor vehicle has an outer panel (100) and an opening apparatus. The opening apparatus has a door handle (30) and a door lock (20) with a lock barrel (10). The lock barrel (10) and the door handle (30) are arranged completely on the inner side of the outer panel (100) of the door (200).