Vehicle Hood Waterfall Latch Structure for Larger Frunk Volume

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Solution Overview

Problem

Existing vehicle hood assemblies often incorporate palm dimplers and channels that reduce the available space in the frunk or engine compartment, limiting its volume and functionality.

Innovation Solution

A vehicle hood assembly design that eliminates the palm dimpler and direct transition between the domed and waterfall regions, enhancing the frunk volume by at least three liters, utilizing a latch reinforcement secured to the waterfall region without intervening channels.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Strength

If palm dimplers and channels are incorporated into the hood assembly, then structural strength is improved, but frunk volume is reduced

Engineering Contradiction:
Improvestructural strengthVSAvoidfrunk volume
Core Design Contradiction:
StrengthVSVolume of moving object

Solution Approach 1:

The invention extracts and removes the palm dimpler and channel structures from the hood assembly design. By eliminating these traditional structural elements, the patent achieves increased frunk volume while maintaining strength through alternative means (adhesive bonding and latch reinforcement positioning), directly resolving the contradiction between structural strength and volume.

Inventive Principle:
Principle #2Taking out (Extraction)

2Volume of moving object

If latch reinforcement is secured without palm dimpler intervention, then frunk volume is increased, but latch support strength may be compromised

Engineering Contradiction:
Improvefrunk volumeVSAvoidlatch support strength
Core Design Contradiction:
Volume of moving objectVSStrength

Solution Approach 1:

The invention uses adhesive bonding as an intermediary method to secure the latch reinforcement to the hood inner. This alternative bonding mechanism replaces the traditional palm dimpler structure, allowing the latch reinforcement to be firmly attached without requiring the volume-consuming dimpler and channel structures, thus resolving the contradiction between volume and strength.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Device complexity

If direct transition between domed region and waterfall region is implemented, then manufacturing complexity is reduced, but structural integrity may be compromised

Engineering Contradiction:
Improvemanufacturing complexityVSAvoidstructural integrity
Core Design Contradiction:
Device complexityVSStability of the object's composition

Solution Approach 1:

The invention removes the intermediate channel structure that traditionally connected the domed region and waterfall region. By extracting this complex structural element, the patent achieves a direct transition between regions, simplifying manufacturing while maintaining structural integrity through the adhesive bonding system and overall hood assembly design.

Inventive Principle:
Principle #2Taking out (Extraction)

Data Source

PatentUS20250346298A1Vehicle hood assembly having a waterfall region supporting a latch reinforcement
Publication Date: 2025.11.13 FORD GLOBAL TECH LLC
  • US20250346298A1 patent drawing
  • US20250346298A1 patent drawing
  • US20250346298A1 patent drawing

AI summary

A vehicle hood assembly, including: a hood outer; a hood inner having a domed region and a waterfall region; and a latch reinforcement that is secured to the waterfall region. A vehicle closure module latch supporting method includes providing a waterfall region of a hood inner extending directly from a domed region of the hood inner and securing a latch reinforcement of a latch assembly to the waterfall region. The vehicle hood assembly can omit a palm dimpler.