Adjustable Vehicle Hood Latch with Twist Lock Handle

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Solution Overview

Problem

Conventional latch assemblies for automobile hoods lack adaptability, aesthetics, and user-friendliness, often requiring multiple fasteners and causing wear on painted surfaces, with limited options for customization and ease of installation.

Innovation Solution

An aftermarket mechanism featuring a pivotally mounted twist lock handle, a hood pin, and a spring receiver member with adjustable slots, allowing for customizable configurations that prevent dangling and wear on painted surfaces, while enabling easy installation and adjustment.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If conventional latch assemblies are used, then the hood can be fastened securely, but the latch lacks adaptability to various hood styles and surfaces

Engineering Contradiction:
Improveadaptability to various hood stylesVSAvoidmultiple fasteners required
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The latch assembly is designed as a universal mechanism that can accommodate various hood styles, opening sizes, and surface types through adjustable components including the spring receiver member with slots, adjustable hood pin position, and configurable twist lock handle, eliminating the need for multiple different fasteners

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

Solution Approach 2:

The latch assembly incorporates adjustable and reconfigurable elements such as the spring receiver member that can be positioned at different locations along its slot, the hood pin that can be adjusted along its slot, and the twist lock handle that can be repositioned, allowing the same mechanism to adapt to different installation requirements

Inventive Principle:
Principle #15Dynamics

2Reliability

If conventional fasteners are used, then the hood can be secured, but the fasteners cause wear on painted surfaces

Engineering Contradiction:
Improvesecure fasteningVSAvoidwear on painted surfaces
Core Design Contradiction:
ReliabilityVSObject-affected harmful factors

Solution Approach 1:

Bushings are introduced as intermediary elements between the latch components and the hood surface. These bushings act as mediators that prevent direct contact between metal fasteners and painted surfaces, thereby preventing wear and damage to the paint while maintaining secure fastening functionality

Inventive Principle:
Principle #24Intermediary (Mediator)

3Ease of operation

If conventional latch assemblies are used, then the hood can be locked, but the fasteners extend or dangle when unlocked affecting appearance

Engineering Contradiction:
Improveunlocked positionVSAvoidoutward appearance
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The twist lock handle is designed to be pivotal and adjustable, allowing it to be positioned in various locations along its slot. This dynamic positioning capability enables the handle to be configured to lie flat against the hood surface when unlocked, preventing it from extending or dangling and improving the overall appearance

Inventive Principle:
Principle #15Dynamics

4Reliability

If conventional latch assemblies are used, then the hood can be fastened, but installation requires professionals and is complex

Engineering Contradiction:
Improvesecure lockingVSAvoidinstallation complexity
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The latch assembly is designed as a modular, pre-assembled unit with clearly defined components that can be easily identified and installed in sequence. The spring receiver member, hood pin, and twist lock handle are segmented components that can be independently adjusted and positioned, simplifying the installation process for non-professionals

Inventive Principle:
Principle #1Segmentation

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 mechanism provides a customizable, adaptable, and aesthetically pleasing locking solution that prevents wear on painted surfaces and allows for easy configuration, suitable for various hood styles without requiring multiple fasteners, and can be installed by non-professionals.

Implementation Method 1

a spring receiver member substantially aligned with and detachably connected to the hood pin through a fastening slot

Methodology Applied
Scientific EffectSpring: Spring

Implementation Method 2

to resist loosing of the pivotally mounted twist lock handle until application of an active force to the hood

Methodology Applied
Scientific EffectFriction: Friction

Data Source

PatentEP2318629B1Adjustable vehicle hood latching apparatus and method
Publication Date: 2016.10.19 SHELBY AUTOMOBILES
  • EP2318629B1 patent drawingFigure 1
  • EP2318629B1 patent drawingFigure 2
  • EP2318629B1 patent drawingFigure 3~5

AI summary

A latching apparatus is disclosed. In one embodiment, the apparatus comprises a first assembly disposed on a first portion of a vehicle. A second assembly is disposed on a second portion of the vehicle and configured to detachably attach with the first assembly. The second assembly includes an adjustment mechanism to prevent damage upon the first assembly detected in an undesirable orientation during insertion therein.