Tonneau Cover Latch Rod Hook Jaw Mechanism

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Solution Overview

Problem

Conventional truck cover systems are inadequate as they obstruct the rear window view when folded, posing safety concerns during driving and allow water and liquids to pass through due to seams, compromising cargo protection.

Innovation Solution

A tonneau system with multiple frame bars interconnected by latches, featuring a rod and hook jaw mechanism that securely attaches to the truck frame, providing adjustability and a waterproof seal, while allowing for easy folding and storage.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If the tonneau cover is folded to accommodate storage of larger objects, then the cargo bed accessibility is improved, but the rear window visibility deteriorates causing safety concerns

Engineering Contradiction:
Improvecargo bed accessibilityVSAvoidrear window visibility
Core Design Contradiction:
Adaptability or versatilityVSObject-affected harmful factors

Solution Approach 1:

The tonneau cover is divided into multiple panels that can be independently folded and latched. This segmentation allows partial folding to accommodate cargo while maintaining enough coverage to preserve rear window visibility when not in full folded position

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover system transitions from static to dynamic positioning with multiple latched states. The cover can be positioned at various angles (fully extended, partially folded, fully folded) and secured at each position, allowing optimization between cargo accessibility and visibility based on driving conditions

Inventive Principle:
Principle #15Dynamics

2Ease of operation

If conventional cover systems are folded, then cargo bed exposure is improved, but water and liquids can pass through seams compromising cargo protection

Engineering Contradiction:
Improvecargo bed exposureVSAvoidwater and liquid infiltration
Core Design Contradiction:
Ease of operationVSObject-affected harmful factors

Solution Approach 1:

The tonneau cover utilizes a flexible vinyl or polymeric material that can conform to the frame structure. This flexible material creates waterproof seals along the seams and at the latched positions, preventing water and liquid infiltration while allowing the cover to be folded to various positions for cargo bed exposure

Inventive Principle:
Principle #30Flexible shells and thin films

3Strength

If the tonneau cover structure is made robust for secure attachment, then attachment strength is improved, but the device complexity increases

Engineering Contradiction:
Improveattachment strengthVSAvoidlatch mechanism complexity
Core Design Contradiction:
StrengthVSDevice complexity

Solution Approach 1:

The attachment system is segmented into multiple independent latch assemblies distributed along the frame. Each latch is a simple, self-contained unit that provides localized secure attachment points, distributing the structural load across multiple locations rather than requiring one complex heavy-duty attachment mechanism

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The latch mechanism incorporates a self-latching feature where the rod and groove geometry automatically engage and lock when the cover is folded to the desired position. The user simply needs to insert the rod into the groove and rotate the knob, which then self-secures the latched position without requiring additional tools or complex adjustment procedures

Inventive Principle:
Principle #25Self-service

Data Source

PatentUS11186150B2Latching systems for tonneau covers
Publication Date: 2021.11.30 NINGBO SCARMAN AUTO PARTS CO LTD
  • US11186150B2 patent drawing
  • US11186150B2 patent drawing
  • US11186150B2 patent drawing

AI summary

The present invention is directed a tonneau system. More specifically, embodiments of the present invention provide a tonneau system, which includes multiple frame bars interconnected by latches. At least one of latches includes a rod that is operably coupled to its main portion, which includes an opening to accommodate the rod. The rod attaches to a hook jaw that includes two openings for attaching to the truck frame. There are other embodiments as well.